addendum no. three (3)...gwinnett county fire station #15 addendum no. three (3)...

Gwinnett County Fire Station #15 ADDENDUM NO. THREE (3) A16-209GSB/05-25-2017

ADDENDUM NO. THREE (3) Date: May 25, 2017 Architect’s Project No. A16-209GSB PROJECT: Gwinnett County Fire Station #15, BL050-17 Client: Gwinnett County Government Contract for: General Contracting This Addendum forms a part of the Contract Documents and Construction Drawings and modifies the original Bid Documents for the above referenced project.

CHANGES TO THE CONTRACT DOCUMENTS A. CHANGES TO THE SPECIFICATIONS

1. REVISE SECTION 01 27 00 UNIT PRICES, PAGE 3, SCHEDULE OF UNIT PRICES/ ALLOWANCES, Unit Price No. 7 should read: Unit Price No. 7 – Auger Cast Concrete Piles: Provide and install auger cast concrete piles in accordance with Structural Drawings, Specifications, and Geotechnical report. The installation of all piles shall be done under the direct supervision of the Owner’s Geotechnical Engineer. All pile installation must be approved by, monitored, and quantified by the Owner’s Geotechnical Engineer.

Note: Contractor shall include 250 linear feet of installed auger cast concrete piles in the base bid price in addition to what is shown on the Structural Drawings.

Note: Geotechnical Engineer MUST monitor and record length of ALL auger cast piles installed. Contractor shall ONLY be reimbursed for ACTUAL linear feet installed. Reimbursement will be based on the linear foot unit price listed in this section.

In the event the actual linear feet installed is less than the linear feet amount included in the base bid price, a credit shall be provided to the Owner based on the linear foot unit price listed in this section.

In the event the actual linear feet installed is greater than the linear feet amount included in the base bid price, the Contractor will be reimbursed based on the linear foot unit price listed in this section.

2. REVISE SECTION 02 30 00 AUGERED CAST-IN-PLACE PILES, PAGE 1, PART 1,

SECTION 1.01., A.1.b. should read:

b. Furnish all labor, materials, equipment and tools required for pile load tests. The load test(s) shall be performed in accordance with procedures described in ASTM D1143, unless otherwise revised by the Geotechnical Engineer and/or Architect.

Refer to the attached revised specification SECTION 02 30 00 AUGERED CAST-IN-PLACE PLIES.


3. REVISE SECTION 02 30 00 AUGERED CAST-IN-PLACE PILES, PAGE 5, PART 3,

SECTION 3.4, A. should read:

A. Load Tests: The test(s) shall be run in accordance with ASTM D 1143. Locate test pile in the vicinity of Grid “F” and “3” because depth of rock is shallowest. Perform the load test at locations indicated or as directed on test pile placed to the required depth, except as otherwise directed by the Architect/Engineer. Loading, testing, and recording of data shall be under the direct supervision of a registered Professional Geotechnical Engineer. The analysis of the load test data shall be done under the supervision of a registered Professional Engineer selected by the Architect. The load test shall be evaluated by the Soils Engineer in a written report. The registered Professional Engineer shall be provided and paid for by the Contractor. Do not proceed with the installation of contract piles within any area of substantially different subsoil conditions until a satisfactory load test has been performed in that area. Load test pile to failure or loading jack capacity but in no case less than twice the anticipated working load (min. 300 ton jack required) unless failure occurs first. The safe design capacity of a test pile as determined from the results of load tests shall be the lesser of the two values computed according to the following:

Refer to the attached revised specification SECTION 02 30 00 AUGERED CAST-IN-PLACE PLIES.

4. REVISE SECTION 09 66 00 TERRAZZO FLOORING, PAGE 4, PART 2, SECTION 2.01, B.

should read: B. System Overview: The Thin-set Epoxy Terrazzo Flooring System shall be #1100 Epoxy

Thin-set Terrazzo System with FlexGrid® Crack Bridging Membrane, consisting of 3556 EPO-FLEX Terrazzo Membrane, FS38-4.4 Fiberglass Scrim, 3520 Epoxy Terrazzo Matrix as the binder resin, 5270 Epoxy Filler, #0, #1 and #2 Herritage Glass, 3520 Epoxy Terrazzo Matrix with 5271 Terrazzo Grout Additive as Grout, and 4401 Terrazzo Wet Look Sealer as the seal coat. The total system thickness will be 3/8" nominal.

5. REVISE SECTION 09 66 00 TERRAZZO FLOORING, PAGE 4, PART 2, SECTION 2.01, C.1.

should read:

1. Basis of Design Color Mix shall be as follows:

a. Epoxy Matrix: SW-Light French Gray

b. Chips:

i. 5% Red Glass #2's

ii. 10% Black Glass #1's

iii. 15% Crystal Glass #1’s

iv. 40% GA White #1’s

v. 30% Raven Black #1’s

c. Finish / Polish: 220 Grit

Refer to the attached revised specification SECTION 09 66 00 TERRAZZO FLOORING. 6. ADD new SECTION 26 41 13 LIGHTNING PROTECTION SYSTEM (attached).


B. CHANGES TO THE DRAWINGS (refer to clouded revisions on the following sheets)

1. Detail number 8 and 9 have been added to the attached revised sheet A3.2. C. CLARIFICATIONS

1. Question: Is the lightning protection system going to be an add alternate, because I couldn't find anything in the specs or drawings mentioning a Lightning Protection system?

Answer: Lightning Protection will be included in the General Contractor’s scope and shall be included in base bid. Specification SECTION 26 41 13 LIGHTNING PROTECTION SYSTEM has been added to the Project Manual and is attached to this Addendum No. 3.

2. Question: Please note that section 1.01.A.1.b calls for two (2) load tests and section 3.04.A calls for one(1) load test. Please confirm which is correct.

Answer: Refer to the attached revised specification SECTION 02 30 00 AUGERED CAST-IN-PLACE PLIES.

3. Question: Have you gotten any questions regarding the terrazzo aggregate mix listed in the specs?

Some sections refer to Heritage Glass, others call for marble aggregate which is approx. 1/3 the price of glass. Attached is a copy of the spec page I’m referring to. Any clarification would be greatly appreciated.

Answer: Refer to the attached revised specification SECTION 09 60 00 TERRAZZO

FLOORING. Terrazzo aggregate mix shall be revised in the specifications. The revised aggregate mix shall be:

Epoxy Matrix: SW-Light French Gray Chips: 5% Red Glass #2’s 10% Black Glass #1’s 15% Crystal Glass #1’s 40% GA White #1’s 30% Raven Black #1’s Finish / Polish: 220 Grit 4. Question: Is there a specification for the VMS System?

Answer: All specifications for the VMS system can be found on drawing sheet VMS1. No book specification are provided for this system.

5. Question: Please consider increasing the time of completion to 12 mos. due to the construction

schedule impacted by unsuitable soils, auger cast piles, grade beams and VMS. Answer: Construction time shall remain 305 calendar days from the written notice to

proceed. 6. Question: Please confirm and clarify which permits and fees are waived including building permit,

LDP, water and sewer, meters, backflows, DDC, etc. Please confirm if storm water quality monitoring is provided by the owner with the testing.

Answer: This project is permitted through Gwinnett County. Permit fees are waived and

water meter and impact fees are paid by the Owner. Storm water quality monitoring shall be paid for by the Owner. All utilities and utility installation cost are paid for by the Contractor until the Owner occupies the building. Refer to specification SECTION 01 12 00, PAGE 2, PART 3, SECTION 3.01 SCHEDULES.


D. SUBSTITUTION REQUESTS

Substitution requests received have been reviewed and shall be approved or denied as follows: (Contractor is responsible for coordination of all product options and accessories for a complete installation matching the basis of design) 1. AMARR Model #3552: NOT APPROVED FOR OVERHEAD SECTIONAL DOORS

Color chart from manufacturer’s website does not offer a color option that matches the desired Drylac Power Coatings RAL 3002.

2. Filcoten by NDS: APPROVED FOR TRENCH DRAIN (CONTRACTOR MUST FULLY

COORDINATE ALL CONCRETE ENCASEMENT, FOOTINGS, VMS SYSTEM, AND DRAINAGE)

E. LIST OF ATTACHMENTS Specifications: Section 01 27 00 – Unit Prices (4 pages) Section 02 30 00 – Augered Cast-In-Place Piles (6 pages) Section 09 66 00 – Terrazzo Flooring (6 pages) Section 26 41 13 – Lightning Protection System (5 pages)

Drawing Sheets: A3.2

PLEASE NOTE: Contractors must acknowledge receipt of this Addendum on the Bidding Form.

END OF ADDENDUM NO. THREE (3)

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Gwinnett County Fire Station #15 UNIT PRICES A16-209GSB/05-25-2017 01 27 00-1

SECTION 01 27 00

UNIT PRICES PART 1 – GENERAL

1.01 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General Conditions and other Division 1 Specification Sections, apply to this Section.

1.02 SUMMARY

A. Section includes:

1. Definition 2. Administrative and procedural requirements for unit prices. 3. Schedule of Unit Prices, at the end of this Section.

1.03 DEFINITION

A. A unit price is an amount calculated and proposed by the Contractor in the Bidding Form as a price per

unit of measurement for materials or services that will be added to or deducted from the Contract Sum by Change Order in the event certain unexpected work items are encountered or certain estimated quantities of work required by the Contract Documents are increased or decreased.

1.04 ADMINISTRATIVE AND PROCEDURAL REQUIREMENTS

A. Unit prices as included in the Contract Documents shall include all expenses related to the unit price

work items, that is materials, labor, equipment, transportation, general requirements, overhead, profit, taxes and any other costs incidental to the work items.

B. The individual Specification Sections for the construction activities requiring the establishment of unit

prices provide for the conditions under which said unit prices will be authorized and the methods of determining payment-quantities. The Contractor will be compensated only for the quantities of unit price work completed.

C. The Schedule of Unit Prices is included with the Bidding Form. Any Specification Sections referenced

in that Schedule contain the requirements for materials and/or methods described for each unit price.

D. The Schedule of Unit Prices may be used to determine changes to the Contract Sum. Where quantities of items for which unit prices are provided, they are estimates; and are included in the scope of the Work upon which the Contract Sum is based. The Contractor will be compensated for the actual quantities of unit price items completed at the established unit price rates. These actual extensions of unit prices for work completed, whether requiring a decrease or an increase in the Contract Sum, will be incorporated into the Contract Sum through a modification to the Contract by Change Order. Procedures for such modifications are included in Specification Section 01 25 00.

PART 2 – PRODUCTS (NOT USED) PART 3 – EXECUTION (NOT USED)

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SCHEDULE OF UNIT PRICES/ALLOWANCES: Unit Prices shall be included for the following items and must be listed on the Bid Form.

SCHEDULE OF UNIT PRICES

ITEM

UNIT COST/UNIT ALLOWANCE

Unit Price No. 1 – Unsuitable Material: Removal and disposal off-site of unsuitable materials. Removal must be approved by, monitored, and quantified by the Owner’s Geotechnical Engineer. Note: Contractor shall include 1,000 cubic yards of removal and disposal off-site of unsuitable materials in the base bid price in addition to what is required to achieve design grades.

1,000 CY _________/CY $___________

Unit Price No. 2 – Mass Rock: Excavate, haul off-site and dispose of mass rock. Excavation and haul off must be approved by, monitored, and quantified by the Owner’s Geotechnical Engineer. Note: Contractor shall include 50 cubic yards of excavation, haul off-site and disposal of mass rock in the base bid price.

50 CY _________/CY $___________

Unit Price No. 3 – Trench Rock: Excavate, haul off-site and dispose of trench rock. Excavation and haul off must be approved by, monitored, and quantified by the Owner’s Geotechnical Engineer. Note: Contractor shall include 50 cubic yards of excavation, haul off-site and disposal of trench rock in the base bid price.

50 CY _________/CY $___________

Unit Price No. 4 – Suitable Soils: Provide suitable soil from off-site and compact in place to replace excavated rock or unsuitable soil. Haul in and compaction must be approved by, monitored, and quantified by the Owner’s Geotechnical Engineer. Note: Contractor shall include 1,000 cubic yards of haul in and compacted suitable soils from off-site in the base bid price in addition to what is required to achieve design grades.

1,000 CY _________/CY $___________

Unit Price No. 5 – #57 Stone: Haul in #57 stone to replace excavated rock or unsuitable soil. Haul in and placement must be approved by, monitored, and quantified by the Owner’s Geotechnical Engineer. Note: Contractor shall include 250 tons of haul in and placement of #57 stone in the base bid price in addition to what is shown on the Civil Drawings.

250 TONS _________/TON $___________

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ITEM


Unit Price No. 6 – Surge Stone (Ranging in Size from grapefruit size to football size): Haul in surge stone to replace excavated rock or unsuitable soil. Haul in and placement of surge stone must be approved by, monitored, and quantified by the Owner’s Geotechnical Engineer. Note: Contractor shall include 1,000 tons of haul in and placement of surge stone in the base bid price in addition to what is shown on the Civil Drawings.

1,000 TONS _________/TON $___________

Unit Price No. 7 – Auger Cast Concrete Piles: Provide and install auger cast concrete piles in accordance with Structural Drawings, Specifications, and Geotechnical report. The installation of all piles shall be done under the direct supervision of the Owner’s Geotechnical Engineer. All pile installation must be approved by, monitored, and quantified by the Owner’s Geotechnical Engineer. Note: Contractor shall include 250 linear feet of installed auger cast concrete piles in the base bid price in addition to what is shown on the Structural Drawings. Note: Geotechnical Engineer MUST monitor and record length of ALL auger cast piles installed. Contractor shall ONLY be reimbursed for ACTUAL linear feet installed. Reimbursement will be based on the linear foot unit price listed in this section. In the event the actual linear feet installed is less than the linear feet amount included in the base bid price, a credit shall be provided to the Owner based on the linear foot unit price listed in this section. In the event the actual linear feet installed is greater than the linear feet amount included in the base bid price, the Contractor will be reimbursed based on the linear foot unit price listed in this section.

250 LF _________/LF $___________

Unit Price No. 8 – Geotechnical Fabric: Material and placement of geotechnical Fabric (Mirafi 600X or equal) To be used as directed by Architect, without restriction at the unit price. Note: Contractor shall include 100 square yards of geotechnical fabric in the base bid price.

100 SY _________/SY $___________

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ITEM


Unit Price No. 9 – Underdrain: 6” perforated PVC underdrain with 12” of #57 stone on all sides wrapped in geotechnical fabric (Mirafi 600X or equal) installed in a 6’ deep trench complete. To be used as directed by Architect, without restriction at the unit price. Note: Contractor shall include 100 linear feet of installed perforated PVC underdrain with 12” of #57 stone on all sides wrapped in geotechnical fabric (Mirafi 600X or equal) in the base bid price.

100 LF _________/LF $___________

These Unit Prices are submitted as part of the Lump Sum Bid: The BIDDER declares that they understand that the Contract Sum may be decreased at the unit prices listed above. The BIDDER declares that they understand that the quantities of work shown are subject to either increase or decrease, and that should the quantities of any of the items of work be increased, the BIDDER proposed to do the additional work at the unit prices listed herein; and should the quantities be decreased, the BIDDER also understands that payment will be made on the basis of actual quantities at the unit price proposal and will make no claim for anticipated profits for any decrease in quantities and that the actual quantities will be determined upon completion of the work; at which time adjustment will be made to the Contract Sum.

END OF SECTION 01 27 00

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Gwinnett County Fire Station #15 AUGERED CAST-IN-PLACE PILES A16-209GSB/05-25-2017 02 30 00-1

SECTION 02 30 00

AUGERED CAST-IN-PLACE PILES PART 1 – GENERAL 1.01 REFERENCE STANDARDS

A. DESCRIPTION: Auger-cast grout piles shall be formed by rotating a continuous flight, hollow shaft auger into the ground until the refusal criteria established by the requirements specified in this section are satisfied. As the earth filled auger is withdrawn, grout shall be injected through the auger shaft in a way that exerts removing pressure on the auger and lateral pressure on the soil surrounding the grout-filled pile hole.

1. Work Included:

a. Furnish all labor, materials, equipment and tools required to complete the installation of all piles as shown on the Drawings.

b. Furnish all labor, materials, equipment and tools required for pile load tests. The load test(s) shall be performed in accordance with procedures described in ASTM D1143, unless otherwise revised by the Geotechnical Engineer and/or Architect.

1.02 QUALITY ASSURANCE

A. Applicable Publications: The publications listed below form part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

1. American Society for Testing and Materials (ASTM):

Basic Designation Subject C 31-98 Making and Curing Concrete Test Specimens in the Field C 33-99a Specifications for Concrete Aggregates C 109-99 Compressive Strength of Hydraulic Cement Mortars C 125-99a Definition of Terms Relating to Concrete and Concrete Aggregates C 150-99a Portland Cement D 1143-81 Piles Under Axial Compressive Load

B. Testing: A testing laboratory shall be selected by the Architect and paid for by the Contractor to

provide inspection of all piles during installation. C. Qualifications of Contractors: All piles shall be installed by an experienced Contractor who is able

to submit evidence of having a minimum of five (5) years of experience in the successful installation of auger cast piles.

D. Allowable Tolerance:

1. Pile butt locations: a. Pile butt location shall be accurately established by survey.

2. Deviations from designated positions: a. Piles will be drilled with a maximum deviation of 1½% of length from the vertical.

Care shall be taken during drilling to prevent and correct any tendency of holes to drift.

b. Piles shall be located as nearly as possible in the exact position specified on design plans position will be allowed. Should the top of the pile in its final position be

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more than 3", Contractor shall submit a redesigned pile cap including such additional piles as will assure that the column center is not more than two (2) inches off the mathematical center of the pile group. Or he may submit details, which provide for the eccentricity to be taken by moment capacity tie strap between pile caps. The cost of redesign and construction shall be the responsibility of the Contractor.

c. The pile butt elevation shall not be more than ½ inch higher than its designated position or more than 1-inch lower than its designated position.

d. Any piles deviating from items a, b & c above will be rejected. e. Rejected piles shall be corrected, removed and/or replaced to comply with these

specifications at no additional cost to the Owner. 1.03 SUBMITTALS

A. General: Submittal shall be in accordance with Specification Section 01 33 00.

B. Test Pile Data: Before installing the indicated piles, submit data obtained from installation of test piles (and load test). The Architect or their designated representative will use this data to verify or modify the established refusal criteria.

C. Records: Furnish complete and accurate records of all auger-cast grout piles. Indicate the pile

location, the diameter, length, and elevation of tip and top of pile, the quantity of grout material actually pumped in each pile hole and the rated load capacity of the pile. Quantity shall be determined by recording grout pump displacement or by other approved means. Immediately report to the Architect any unusual conditions encountered during pile installation.

D. Material and Installation Descriptions: Submit a description of the materials to be used and the

proposed installation methods in the augering and grouting operations.

1. Material description of grout is to include 2-inch cube testing of grout in accordance with procedures established in ASTM C109.

PART 2 – PRODUCTS 2.01 MATERIALS

A. Description: Shall meet the requirements of the referenced publications and other requirements specified.

1. Grout: Grout shall consist of a mixture of Portland cement, a pozolanic material, fluidifier,

sand, and water, all proportioned and mixed so as to produce a grout capable of being pumped without difficulty, having a consistency as specified, and which will have a minimum compressive strength of 4000 p.s.i. at 28 days. Do not use other admixture except as approved.

2. Portland Cement: ASTM C 150, Type I or II. 3. Pozzolan: ASTM C 618, Class F. 4. Grout Fluidifier: Fludifier: Fluidifier shall be a compound possessing characteristics which

will increase the fluidity of the mixture, reduce bleeding, assist in the dispersal of cement grains, and neutralize the setting shrinkage of the high-strength cement mortar (INTERAID as manufactured by the Grout Supply Company, Brecksville, Ohio). Other commercially available admixes shall show prior test results before approval.

5. Water: Water shall be fresh, clean and free from sewage, soil, acid, alkali, salts or organic matter.

6. Fine Aggregate: ASTM C 33. The sand shall consist of hard, dense, durable, uncoated rock particles and shall be from injurious amounts of silt, loam, lumps, soft or flaky particles, shale, alkali, organic matter, mica, and other deleterious substances. If washed, use a

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washing method which will not remove desirable fines and which subsequently will permit the sand to drain until the residual-free moisture is reasonably uniform and stable. The sand shall be well graded from fine to coarse, with the fineness modulus between 1.30 and 3.40. Fineness modulus shall be defined according to ASTM C 125 for U.S. Standard Sieve Nos. 16, 30, 50 and 100.

7. Reinforcement: Materials, assembly and the placement of reinforcement shall conform to the requirement of Specification Section 03 30 00 Cast-In-Place Concrete.

2.02 EQUIPMENT

A. General: The equipment furnished shall be capable of providing piles a minimum of 35 feet longer than that required for bid length piles. Adequate provision shall be made for longer piles to achieve the design capacity.

B. Drive Box: The drive box shall provide:

1. A minimum of 30,000 ft. lbs. of Torque at drill stem. 2. A minimum of 5,000 lbs. of dead weight.

C. Leads: The leads shall be marked for the purpose of measurement of auger penetration, at a

minimum of one foot (1’) intervals, in such a manner that the elevation of the auger tip can easily be determined from observations made at the ground level.

D. Augerflight shall conform to the following criteria:

1. The nominal outside diameter of the auger flight shall be 16 inches. 2. The auger flight shall be continuous. 3. The auger flight shall have a maximum pitch of 9 inches. 4. The minimum inside diameter of the hollow stem auger flight shall be 2½ inches. 5. A cork shall be provided at the point of discharge for protection of the hollow shaft during

augering. 6. A middle guide is required for augers in excess of 40 feet. 7. Excessively worn augers shall periodically be replaced.

E. Bit: The bit shall be a bottom discharge bit or shall discharge at a point below the auger cutting

teeth. Cutting teeth shall periodically be replaced. F. Pump: The pump shall be a positive displacement pump capable of providing a minimum pressure

of 350 pounds per square inch. The hopper that supplies the pump shall have a minimum capacity of 10 cu. ft.

G. Flow Cone: A flow cone with a ¾-inch orifice shall be provided by the Contractor. It shall remain

on site or available for use at all times. H. A minimum grout head of at least 5.0 feet shall be maintained during grouting.

PART 3 – EXECUTION 3.01 LOCATION OF PILES

A. The piles shall be a minimum of 16" in diameter. B. Friction piling will be installed with length of 45’. The Contractor shall base his bids on this length

at all locations

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1. If refusal occurs where a pile is into weathered rock, the pile may be terminated with agreement by the Soil Engineer inspector. The definition of refusal shall be that the penetration of the auger is less than 12 inches under one full minute of rotation and with the condition that the auger shall be fairly new, sharp teeth in the cutting head.

2. The Owner’s Geotechnical Engineer inspector will have supervisory control of the piling operation and determine when acceptable piling depths have been met. If any unusual conditions are found, or disagreements occur concerning pile depths, consideration and resolvement will be effected by the Owner’s Geotechnical Engineer, the Architect, and the Contractor’s drilling contractor's representative.

3.02 INSTALLATION REQUIREMENTS

The Contractor shall inspect the site prior to the commencement of any work. The ground surface at each pile location at the time of augering and grouting shall be at least 12 inches higher than the required pile cut-off elevation. Advance the auger at a continuous rate, which prevents removal of excess soil. Stop rotation of auger after reaching the required depth or refusal criteria of one foot per minute utilizing the equipment specified. At the start of pumping grout, raise the auger from 6 to 12 inches and after grout pressure builds up indicating discharge of grout, and a grout head of 5 feet is built up on the augers, redrill auger to the required tip elevation, and fill pile hole with grout as the auger is removed without interruption. During the forming of the pile, the minimum required pump strokes per linear foot of pile, as determined by pump calibration shall be achieved. Should less than the required pump strokes per foot occur in any one foot increment, the auger shall immediately be advanced 3 feet below the point in question and forming of the pile resumed. Use grout injection equipment with a grout pressure gage in clear-view of the equipment operator. Pressure of the grout during pumping is to be maintained between 100 to 300 p.s.i. (pound per square inch). If pressure falls below 75 p.s.i. advance the auger to a point 3 feet lower than the elevation at which the pressure loss occurred and resume construction of the pile. The magnitude of the grouting pressure and performance of other augering and grouting procedures, as rate of augering, rate of grout injection, rate of auger withdrawal, and control of grout return around the auger flight, are dependent on soil conditions. The auger hoisting equipment shall be capable of withdrawing the auger smoothly and at a constant rate. If the auger jumps upward during withdrawal, or if the grouting process is interrupted, or if there is decreased grouting pressure, reinsert the auger at least 3 feet below the point in question must rotate very slowly during withdrawal, but do not permit counter-clockwise rotation. Disposition of excavated material, resulting from augering, shall be performed by the Contractor. Do not leave any piles partially completed overnight. Completely grout and protect piles at the termination of each day's operation.

A. Grout Volume: The volume of grout per linear foot of pile shall be not less than the volume of grout

per foot of test piles under similar soil conditions nor shall it be less than 1.3 times the theoretical volume of the hole. Make all volume measurements in the presence of the testing agency's representative.

B. Grout Pump: Grout pump shall be a positive displacement pump of an approved design. The pump

shall be calibrated prior to installation of probe piles and at least once per month thereafter. The calibration shall be in strokes per cubic foot or revolutions per cubic foot using a calibration tank of at least 55 gallons capacity. Remove all oil or other rust inhibitors from mixing drums and pressure grout pumps prior to mixing and pumping.

C. Protection of Piles: The sequence of pile installation shall be such that adjacent piles show no

evidence of disturbance. This evidence would actually appear as a drop in the grout surface. The load applied to the soil by the drilling equipment should be such as to avoid compressing or shearing the soil, which may in turn displace or squeeze off the grout column. Place no piles within 10 feet of adjacent augered piles until the grout in the augered piles has set for at least eight hours.

D. Cut-Off: Removal of the portion of the pile above the indicated cut-off elevation may be

accomplished by dipping the grout from the pile, while grout is fluid, but not less than one hour after installation. At the option of the Contractor, and as approved, grout may be allowed to harden

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at its initial top elevation and then carefully trimmed off to the indicated cut-off elevation with hand operated chipping guns.

E. Casings: Steel cylinder casing may be used as a soil retention liner as the soil warrants. Casings

shall be approved and shall be left in place and filled with grout. Casings shall be of sufficient strength and rigidity to withstand all installation stresses, to prevent distortion caused by placing adjacent piles, and to prevent collapse due to soil or hydrostatic pressure. Install casing to the required depth by either rotation by the auger drive unit, using weights, or jetting. After the casing is in place, clear water, sediment, and debris from the casing, and cast pile in casing as specified in Article 3.02 paragraph above entitled "Installation Requirements".

F. Do not install new piles within 8 feet of pile diameter, which have been filled with concrete less

than eight (8) hours. G. At any depth, if grouting operation is interrupted the auger should be advanced a minimum of 5 feet

into existing grout when grouting operation is resumed to minimize probability of voids in grout. H. The Owner’s Geotechnical Engineer should determine when adequate depths have been achieved

and pile lengths meet length criteria. I. Withdrawal of auger should be slow enough to maintain the cross section of the drilled hole.

3.03 PROBE PILES

Provide five (5) probe piles as indicated by the Owner’s Geotechnical Engineer or the Architect to the indicated refusal criteria. Test and probe piles shall be of the same type and shall be placed in the manner specified for all piling. The Owner’s Geotechnical Engineer will use probe piles, load tests and soil boring data to aid in determining the acceptance of piles. Place piles which are to be located immediately adjacent to test piles after placing test pile (or after load testing). Test piles that are located within the tolerances indicated for all piles and that provide a safe design capacity as determined by the results of a satisfactory load test may be used in the finished work. Do not apply test loads to the piles until the grout has obtained a minimum strength of 4000 psi.

3.04 TESTS

A. Load Tests: The test(s) shall be run in accordance with ASTM D 1143. Locate test pile in the vicinity of Grid “F” and “3” because depth of rock is shallowest. Perform the load test at locations indicated or as directed on test pile placed to the required depth, except as otherwise directed by the Architect. Loading, testing, and recording of data shall be under the direct supervision of the Owner’s registered Geotechnical Engineer. The analysis of the load test data shall be done under the supervision of the Owner’s registered Geotechnical Engineer selected by the Architect. The load test shall be evaluated by the Owner’s registered Geotechnical Engineer in a written report. The registered Professional Engineer shall be provided and paid for by the Owner. Do not proceed with the installation of contract piles within any area of substantially different subsoil conditions until a satisfactory load test has been performed in that area. Load test pile to failure or loading jack capacity but in no case less than twice the anticipated working load (min. 300 ton jack required) unless failure occurs first. The safe design capacity of a test pile as determined from the results of load tests shall be the lesser of the two values computed according to the following:

1. One-half the load that caused a net settlement after rebound of not more than 0.01 inch per

ton of total test load. 2. One-half the load that causes a gross settlement of not more than 1.5 inches, provided that

the load settlement curve shows no signs of failure. 3. The remainder of foundation piles shall not be installed until load test has been analyzed

and instructions to proceed have been issued by the Architect.

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4. The cost of the load test, which shall include all necessary apparatus for applying load, instruments for recording settlement, and all other labor and equipment necessary for completing the required load tests, shall be included in the lump sum price for the base bid.

5. The pile to be load tested shall be allowed to stand undisturbed at least 72 hours after being installed to the required depth.

B. Flow Cone Test: The quantity of water used shall be such as to produce a grout having a consistency

of not less than 15 seconds when tested with a flow cone, except the flow cone shall be modified by removal of the ½-inch orifice allowing grout to pass through the ¾-inch hole in bottom of cone. Grout which arrives on site should be pumped as soon as possible and shall not be used if retempering is required.

C. Grout Test Specimens: Grout test shall be conducted by the Owner's Geotechnical Engineer in

accordance with ASTM C31 and ASTM C109. Prepare test specimens of grout by placing the grout in the prescribed manner into 2-inch cube molds. Provide mold with a top cover plate so designed as to restrain grout expansion and to permit escape of air and water. Collect not less than one set of cubes per day per rig during placement. One set shall consist six (6) cubes of which two (2) shall be tested at seven (7) days and two (2) at 28 days and two (2) cubes are to be held to 56 days. If one or more cubes for a pile grout test at 10 percent or more below the required strength, reject that pile group.

3.05 BID PROPOSAL AND BASIS OF PAYMENT

A. The contract proposal shall be based on the number and lengths of piles called for in Contract Documents.

B. An additive and deductive price per lineal foot shall be quoted in the bid document for additional

footage to that shown on plans and covered by these specifications. C. Adjustments made to quantities shall be made to aggregate totals of quantities and not to the

quantities in each pile. D. Bid Quantities: The base bid for this work shall include the total number of piles and the total

aggregate footage as shown on the Drawings. Piles shall be installed to 100 tons capacity as directed within this specification. Payment shall be based upon the number of piles installed and the actual length measured from the tip to the final cut-off.

E. Payment will be made at the contract prices and such payment shall be the full compensation for

furnishing all materials and labor necessary to properly install the piles under this document and shall include furnishing and handling of all piling materials and delivery of same, cutting off at grade, and any other work or materials furnished to complete the pile installation.

3.06 OBSTRUCTIONS

A. If a pile encounters some underground obstruction other than materials logged in the soils report and the auger is unable to penetrate this obstructing, a replacement pile or piles shall be installed at the direction of the Architect. In such cases, an increase in total length of pile installed shall be paid for by the Owner.

B. The Contractor shall determine the location of all existing utilities and he shall be responsible for

any damage to utilities remaining in use that may occur as a result of the execution of the piling work. Such damage shall be made good to the satisfaction of the Architect.


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Gwinnett County Fire Station #15 TERRAZZO FLOORING A16-209GSB/05-25-2017 09 66 00-1

SECTION 09 66 00

TERRAZZO FLOORING PART 1 – GENERAL

1.01 WORK INCLUDED

A. Furnish necessary material, labor, and equipment required to prepare designated areas and install a 3/8” Thick Thin-set Epoxy Terrazzo Flooring System with Crack Bridging Membrane and integral cove base.

1.02 RELATED WORK

A. Drawings and general provisions of Contract including General and Supplementary Conditions and Division 1, excepting Article 1.03 “Quality Assurance” and Article 1.05 “Submittal” provisions in this section.


A. Manufacturer's Qualifications

Obtain Thin-set Epoxy Terrazzo Flooring System materials from a single manufacturer with a minimum of five (5) years verifiable experience providing materials of the type specified in this section.

B. Contractor's Qualifications Installation must be performed by a manufacturer certified contractor with skilled mechanics having not less than three years satisfactory experience in the installation of the type of system as specified in this section, and must be certified in writing by the manufacturer of the Thin-set Epoxy Terrazzo Flooring System. Contractor must be in good standing with the National Terrazzo Mosaic Association (NTMA) and have at least three projects of comparable scope and complexity and of at least 50% total square footage of this Project.

C. Floor System Thickness Verification

At the Owner's discretion and under his supervision the Contractor shall take two (2) 1" random cores per 1,000 sq. ft. through the system into the substrate to verify proper system thickness. Cored areas less than specified thickness shall be removed and replaced or increased in thickness by the installing contractor, in a manner that does not affect the performance or integrity of the system. Cored areas which comply with the recommended system thickness shall be built-up to match the surrounding surface elevation prior to applying the seal coat(s). Cores taken and patched will be noticeable; therefore, cores should be taken from areas where aesthetics are less critical. Cost associate with repair of cored areas that comply with specification thickness are the responsibility of the Owner.

1.04 WARRANTY

A. The Contractor and the manufacturer shall furnish a standard guarantee of the Thin-set Epoxy Terrazzo Flooring System for a period of one (1) year after installation. The labor and material guarantee shall include loss of bond and wear-through to the concrete substrate from normal use.

B. Not included in the warranty are damage due to structural design deficiencies including but not limited to slab cracking from lateral, vertical or rotational movement, and gouging or other damage due to fork lifts, other equipment, delamination caused by vapor transmission, Acts of God, or other elements beyond the scope of protection of this system nor causes not related to the system materials.

C. In case of a warranty claim, the Owner will notify the manufacturer and Contractor in writing within 30 days of the first appearance of problems covered under this warranty. The Owner will

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provide free and unencumbered access to the area during normal working hours for warranty rework. Property protection is also the Owner's responsibility. Remedy is limited to direct repair of the Thin-set Epoxy Terrazzo Flooring System.

1.05 SUBMITTAL

A. General: Submittals shall be in accordance with Specification Section 01 33 00.

B. System Data Submit manufacturer's specifications on cured system and individual components of the Thin-set Epoxy Terrazzo Flooring System, including physical properties and performance properties and tests described in part 2.01 B and submit Material Safety Data Sheets. Each individual component of the system will be evaluated on the basis of these standards. For any tests not listed in the manufacturer's standard nationally published data, the manufacturer must supply the missing data accompanied by the independent testing laboratory's test results which prove compliance in accordance with the referenced standard(s). Manufacturer's standard color chart shall also be submitted and must afford the Owner color selection from at least three (3) standard colors and computerized custom color matching shall be available upon request.

C. The Contractor shall submit a 6" x 6" cured system sample, which the Contractor has made for verification purposes, and finish texture approval.

D. Contractor’s Installing Contractor Experience

The Contractor’s Installing Contractor shall furnish a list of projects using either specified material or equivalent that they have installed during the last five (5) years. Information shall include: project name, square footage, and owner contact name with owner's address and phone number. Also, the Contractor’s Installing Contractor shall furnish resumes detailing the experience of key project personnel including Supervisors and Mechanics.

E. It is the intention of this Section to provide the products as indicated. Substitutions will be considered only when received by the Architect through the Contractor prior to Bid. Upon receipt of any such submission, the Architect will determine whether or not the proposed product is an equal.

F. The Contractor shall submit a copy of the manufacturer's packing slip, tagged for this specific job, along with calculations, signed by an officer of the primary material supplier demonstrating that the quantity of material furnished for the Project will achieve the specified coverage and mil thickness.

1.06 MATERIAL DELIVERY, HANDLING AND STORAGE

A. Primary system materials shall be delivered in the manufacturer's undamaged, unopened containers. Each container shall be clearly marked with the following:

•Product name(s) and/or Number(s)

•Manufacturer's name

•Component designation (A, B, etc.)

•Product Mix Ratio

•Health and Safety Information

•CHEMTREC Emergency Response Information

B. Provide equipment and personnel to handle the materials by methods, which prevent damage.

C. The Contractor shall promptly inspect direct jobsite material deliveries to assure that quantities are correct, comply with requirements and are not damaged.

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D. The Contractor shall be responsible for materials furnished by him, and he shall replace, at his own expense, such materials that are found to be defective in manufacture or that have become damaged in transit, handling or storage.

E. Store material(s) in accordance with manufacturer's instructions, with seals and labels intact and legible. Maintain temperatures within the required range. Do not use materials, which exceed the manufacturer's maximum recommended shelf life.

1.07 JOB CONDITIONS

A. The Contractor shall have the Installing Contractor visit the jobsite prior to the installation of the Thin-set Epoxy Terrazzo Flooring System to evaluate substrate condition, including substrate moisture transmission, quantity and severity of cracking, and the extent of repairs needed. Substrate imperfections should be repaired only after mechanical preparation of the substrate. Surface preparation reveals most imperfections requiring repair. Concrete substrates shall be tested to verify that the moisture vapor transmission of the substrate does not exceed the Thin-set Epoxy Terrazzo Flooring System manufacturers' recommendations. Cost associated with repair, leveling and remediation of the substrate are the responsibility of the Contractor.

B. The Contractor should exercise care during surface preparation and system installation to protect surrounding substrates and surfaces, as well as in-place equipment. The Contractor shall prepare the substrate to remove laitance and open the surface. This shall be achieved by light brush grit blasting. Surface profile achieved shall be similar to medium grit sandpaper and free from bond-inhibiting contaminants.

C. Sub floor tolerances are specified in Specification Section 03 30 00 Cast-in-Place Concrete (in accordance with ACI 302). Each drain in the installation area must be working and raised or lowered to the actual finished elevation of the Thin-set Epoxy Terrazzo Flooring System.

D. System must be protected by the Contractor until it is inspected and turned over to the Owner.

E. The minimum slab temperature must be conditioned to 60 degrees F before commencing installation, during installation, and for at least 72 hours after installation is complete. The substrate temperature must be at least 5 degrees F above the dew point during installation.

F. Maintain lighting at a minimum uniform level of 50 or more foot candles in areas where the Thin-set Epoxy Terrazzo Flooring System is being installed. It is the recommendation of the manufacturer that the permanent lighting be in place and working during the installation.

G. Leaks from pipes and other sources must be corrected prior to the installation of the Thin-set Epoxy Terrazzo Flooring System.

H. At least two (2) weeks prior to the start of the Epoxy Thin-set Terrazzo Flooring System, the Contractor shall test the concrete substrates to verify that the moisture content of the substrate does not exceed the Epoxy Thin-set Terrazzo Flooring System manufacturers' recommendations. All tests shall be performed according to ASTM F-1869, “Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride Moisture Emissions Test” or by ASTM F-2170, “Standard Test Method for Determining Humidity in Concrete Floor Slabs Using in situ Probes.”

PART 2 – PRODUCTS

2.01 MATERIALS

A. Manufacturers: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following: 1. General Polymers Brand, Sherwin-Williams Company (Basis of Design)

2. Key Resin Company

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3. Master Terrazzo Technologies LLC

4. Polymerica Incorporated

5. Terrazzo & Marble Supply Companies

B. System Overview: The Thin-set Epoxy Terrazzo Flooring System shall be #1100 Epoxy Thin-set Terrazzo System with FlexGrid® Crack Bridging Membrane, consisting of 3556 EPO-FLEX Terrazzo Membrane, FS38-4.4 Fiberglass Scrim, 3520 Epoxy Terrazzo Matrix as the binder resin, 5270 Epoxy Filler, #0, #1 and #2 Herritage Glass, 3520 Epoxy Terrazzo Matrix with 5271 Terrazzo Grout Additive as Grout, and 4401 Terrazzo Wet Look Sealer as the seal coat. The total system thickness will be 3/8" nominal

C. Color Selection: Provide 12”x12” Custom Color Samples for Owner and Architect review and approval.

1. Basis of Design Color Mix shall be as follows:

a. Epoxy Matrix: SW-Light French Gray b. Chips:

i. 5% Red Glass #2's ii. 10% Black Glass #1's

iii. 15% Crystal Glass #1’s iv. 40% GA White #1’s v. 30% Raven Black #1’s

c. Finish / Polish: 220 Grit

D. Typical Physical Properties @ 73 degrees F (unless otherwise noted)

Typical Physical Properties

Binder Resin

Color Any custom color matching available upon request Able to match NTMA and TTMAC Standard color plates

Hardness, @ 24 hours Shore D ASTM D 2240

85/65

Compressive Strength ASTM D 695

10,000 psi 68.9 MPa

Tensile Strength ASTM D 638

3,000 psi 20.7 MPa

Flexural ASTM D 790

4,500 psi 31.0 MPa

Flexural Modulus ASTM D 790

500,000 psi 3445 MPa

Adhesion ACI 503R

350 psi 100% concrete failure

2.4 MPa

Abrasion Resistance ASTM D 4060

70-90 milligrams lost

Water Absorption .1%

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ASTM D 570

System Critical Radiant Flux ASTM D 648

.90

Indentation MIL-D-3134J

None

Impact Resistance MIL-D-3134, Sec. 4.7.3

Withstands 16 ft-lbs without cracking, delamination or chipping

Resistance to Elevated Temperatures MIL-D-3134J

No slip or flow at required temperature of 158 degrees F

Slip Resistance Meets ADA Standards (sealer) Thermal Coefficient of Linear Expansion ASTM D 696

25 x 10-6 in/in/degrees

ASTM C = Mortar System ASTM D = Resin only

2.02 AGGREGATES

A. The Basis of Design are aggregates supplied by Heritage Glass.

B. Typical Physical Properties:

1. Size to conform to with NTMA gradation standards.

2. Abrasion resistance when tested according to ASTM C 131 shall not exceed 40% loss.

3. Aggregates shall contain no deleterious or foreign matter.

2.03 DIVIDERS STRIPS

A. The Basis of Design is Manhattan American:

1. Strips shall be L angle divider strips of aluminum and of selected gauge.

PART 3 – EXECUTION

3.01 SURFACE PREPARATION

A. For thorough instructions regarding preparation of concrete substrates consult "Instruction for Concrete Surface Preparation" (Form G-1).

3.02 INSTALLATION

A. General

Apply each component of the Thin-set Epoxy Terrazzo Flooring System in compliance with manufacturer's written installation instructions and strictly adhere to mixing and installation methods, recoat windows, cure times and environmental restrictions. The Thin-set Epoxy Terrazzo Flooring System is to be installed directly over non-moving control joints and cracks which have been treated with EPO-FLEX epoxy, and the Thin-set Epoxy Terrazzo Flooring System will terminate at the edge of isolation and expansion joints as designated by the Architect. Rectangular precast base shall be installed where specified in the Drawings.

B. Cracks: Crack treatment and repair shall be included in the base bid.

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C. Control Joints: Control joint treatment and repair shall be included in the base bid.

D. Isolation/Expansion and Other Joints Subject to Movement:

All expansion joints must be honored through the flooring system. For information pertaining to the above, consult Manufacturer’s publication.

E. Cove Base: 1. Install epoxy terrazzo 4” high integral cove base 3/8” thick with radius transition in non-

wet locations. 2. Install epoxy terrazzo 8” high integral cove base 3/8” thick with radius transition in wet

locations (Restrooms & Janitor Closets).

F. Crack Bridging Membrane:

1. 3556 EPO-FLEX Terrazzo Membrane

G. System Primer:

1. 3579 Penetrating Primer

H. Moisture Control System: After testing according to 1.07H, the concrete shall be treated as required with a moisture control system to control the moisture to allow for the installation of epoxy terrazzo. The system shall be AquAmor MCS applied according installation instructions.

I. Mortar Installation:

1. 3520 Epoxy Terrazzo Matrix as the binder resin

2. 5270 Epoxy Filler

3. #0, #1 and #2 glass Chips

J. Grout Coat:

1. 3520 Epoxy Terrazzo Matrix

2. 5271 Terrazzo Grout Additive

K. Seal Coat:

1. 4401 Terrazzo Wet Look Sealer

3.03 CURING, CLEANING AND PROTECTION

A. Cure the Thin-set Epoxy Terrazzo Flooring System materials in compliance with manufacturer's directions, taking care to prevent contamination during stages of the installation and prior to completion of the curing process.

B. Protect the Thin-set Epoxy Terrazzo Flooring System from damage and wear during other phases of the construction operation, using temporary coverings as recommended by the manufacturer, if required. Remove temporary covering just prior to final inspection.

C. Clean the Thin-set Epoxy Terrazzo Flooring System just prior to final inspection, using materials and procedures suitable to the system manufacturer.


BL050-17

Gwinnett County Fire Station #15 LIGHTNING PROTECTION SYSTEM A16-209GSB/05-2017 26 41 13-1

SECTION 26 41 13

L IGHTNING PROTECTION SYSTEM

PART 1 - GENERAL

1.01 SUMMARY

A. Provide a complete lightning protection system for the building included on the contract Drawings. The system shall provide safety for the building, the buildings contents and occupants by preventing damage caused by lightning. The design of this system is to be in strict accordance with this section of the specifications.

B. The lightning protection system shall be installed by a firm actively engaged in the installation of Master Labeled Lightning Protection Systems and shall be so listed by Underwriters Laboratories Inc. The completed system shall comply with the latest editions of the Installation Requirements for Lightning Protection Systems, UL96A and of the National Fire Protection Association’s Lightning Protection Standard, NFPA 780.

C. The work covered under this section of the specification consists of furnishing labor, materials and services required for the completion of a functional and unobtrusive lightning protection system approved by the Architect and Underwriters Laboratories Inc.

D. The base bid scope of work shall include all necessary installation and components, including but not limited to; ground rods, conductors, bonding and splicing equipment, lightning protection conductors, standing seam bases for mounting air terminals onto metal standing seam, air terminal bases, air terminals and all other components necessary for a complete system. The bidder shall review the Architectural Drawings to assess the conditions of the building and coordinate work required for installation of a complete system. The Owner will not pay for change orders relating to additional labor and components after award of contract.

1.02 REFERENCES

A. The completed lightning protection system shall comply with the latest issue of the following standards and form a part of this specification.

1. Manufacturer’s published specifications, product data sheets, application instructions, and technical bulletins.

2. 29 CFR 1910 and 29 CFR 1926 – OSHA Regulations. 3. NFPA 780, Standard for the Installation of Lightning Protection Systems. 4. UL 96A, Installation Requirements for Lightning Protection Systems. 5. UL 96A – Standard for Safety for Installation Requirements for Lightning

Protection Systems.

1.03 SUBMITTALS

A. General: Submittals shall be in accordance with Specification Section 01 33 00.

B. Shop Drawings shall be submitted to the Architect for approval prior to commencement of the installation. Shop Drawings are to show the extent of the system layout designed specifically for the building included in the Contract Drawings along with details of the products to be used in the installation. Submit product data sheets showing application, dimensions, and material of each component utilized in the lightning protection system. Submit letter of findings at completion of work.


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A. Pre-Installation Conference: Convene a pre-installation conference with all applicable trades and disciplines one week prior to commencing work of this section.

B. The Contractor shall furnish a UL Master Label Certificate Letter of Findings, certifying that the work meets the UL 96A standard, upon completion of the installation.

C. Coordinate work under this section with roofing Contractor.

PART 2 - PRODUCTS

2.01 STANDARD

A. All materials used in the installation shall be new and shall comply in weight, size and composition as required by UL 96A and NFPA 780 and shall be labeled or listed by Underwriters Laboratories Inc. for use in lightning protection systems. The system furnished under this specification shall be the standard product of a manufacturer regularly engaged in the production of lightning protection equipment. The manufacturer shall be listed by UL as a recognized manufacturer of lightning protection components.

2.02 ACCEPTABLE MANUFACTURERS

A. East Coast Lightning Equipment, Inc.

B. ERICO, Inc.

C. Harger, Inc.

D. Heary Brothers Lightning Protection Co., Inc.

E. Independent Protection Company, Inc.

F. Preferred Lightning Protection

G. Robbins Lightning, Inc.

H. Thompson Lightning Protection, Inc.

2.03 MATERIALS

A. Class I materials shall be used on structures that do not exceed 75 feet in height and Class II materials shall be used on structures that are 75 feet or higher above average grade.

B. Copper materials shall not be mounted on aluminum surfaces including Galvalume, galvanized steel and zinc; this includes these materials that have been painted.

C. Aluminum materials shall not come into contact with earth or where rapid deterioration is possible. Aluminum materials shall not come into contact with copper surfaces.

2.04 AIR TERMINALS

A. Air terminals shall project a minimum of ten inches above the object or area it is to protect and shall be located at intervals not exceeding 20’-0” (preferably at centerline of columns) along ridges and along the perimeter of flat or gently sloping roofs (flat or gently sloping roofs include roofs that have a pitch less than 3:12). Flat or gently sloping roofs exceeding 50’-0” in width shall be protected with additional air terminals located at intervals not exceeding 50’. Air terminals shall be located within two feet of roof edges and outside corners of protected areas.

BL050-17


B. Air terminals shall be installed on stacks, flues, mechanical units and other metallic objects not located within a zone of protection and which have an exposed metal thickness less than 3/16 of an inch. Objects having an exposed metal thickness 3/16 of an inch or greater shall be connected to the lightning protection system as required by the specified standards using main size conductor and bonding plates having a minimum of 3 square inches of surface contact area.

C. Air terminal bases shall be securely fastened to the structure in accordance the specified standards including the use of adhesive that is compatible with the surface it is to be used on or stainless steel fasteners. Air terminals located on standing seam metal roof shall be mounted with a standing seam base to the rib of the standing seam roof.

D. Main conductors shall be sized in accordance with the specified standards for Class I or Class II structures and shall provide a two way horizontal or downward path from each air terminal to connections with the ground system. Conductors shall be free of excessive splices and no bend of a conductor shall form a final included angle of less than neither 90 degrees nor have a radius of bend less than 8 inches.

E. Down conductors shall be sized in accordance with the specified standards and in no case shall be smaller than the main roof conductor. Down conductors shall be spaced at intervals averaging not more than 100 feet around the perimeter of the structure. In no case shall a structure have fewer than two down conductors. Where down conductors are installed exposed on the exterior of a structure and are subject to physical damage or displacement, guards shall be used to protect the conductor a minimum of 6 feet above grade. Metallic guards shall be bonded at each end.

F. In case of structural steel frame construction, down conductors may be omitted and roof conductors shall be connected to the structural steel frame at intervals not exceeding 100 feet along the perimeter of the structure.

2.05 ROOF PENETRATIONS

A. Roof penetrations required for down conductors or for connection to structural steel framework shall be made using thru-roof assemblies with solid riser bars and appropriate roof flashing. Conductors shall not pass directly through the roof. Contractor shall ensure that the Roofing Subcontractor shall furnish and install the materials required to properly seal all roof penetrations of the lightning protection components and any additional roofing materials or preparations required by the roofing manufacturer for lightning conductor runs to assure compatibility with the warranty for the roof including roof pads that may be required to protect the roof under each of the lightning protection components.

2.06 GROUND TERMINATIONS

A. Ground electrodes shall be copper clad steel and a minimum 5/8” diameter and 10 feet long. A ground electrode shall be provided for each down conductor. The down conductor shall be connected to the ground electrode using a bronze ground rod clamp having a minimum of 1 ½” contact between the ground electrode and the conductor measured parallel to the axis of the ground electrode, or by an Ultraweld exothermically welded connection. Ground electrodes shall be located a minimum of 2 feet below grade and shall be installed below the frost line where possible (excluding shallow topsoil conditions).

B. Where the structural steel framework is utilized as the down conductor for the system, ground terminals shall be connected to columns around the perimeter of the structure at intervals averaging not more than 60 feet apart. Columns shall be grounded using either

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bonding plates having 8 square inches of surface contact area or by Ultraweld exothermically welded connections.

C. All ground electrodes shall be interconnected with a ground loop conductor on structures that exceed 60 feet in height. The ground loop conductor shall be sized in accordance with the specified standards and in no case shall be smaller than the main roof conductor.

2.07 EQUIPOTENTIAL GROUNDING

A. Common interconnection of all grounded systems within the building shall be ensured by interconnecting to the lightning protection system using main size conductor and fittings.

B. This interconnection shall include but is not limited to the electrical service, telephone and antenna system grounds as well as all underground metallic piping systems including water, gas and sewer. Interconnection to a gas or water line shall be made on the customer’s side of the meter.

C. Grounded metal bodies located within the required bonding distance as determined by the bonding distance formula in the latest edition of NFPA-780 Standard for the Installation of Lightning Protection Systems shall be bonded to the lightning protection system using the required bonding conductors and connections.

2.08 SURGE PROTECTION

A. Surge suppression shall be provided at all power service entrances and at entrances of conductive signal, data and communication services.

PART 3 - EXECUTION

3.02 INSTALLATION

A. The installation shall be installed by an UL listed lightning protection installation company.

B. All air terminals located on standing seam metal roof shall be mounted on the rib of the standing seam roof and shall not be permitted to be installed on the pan of the roof panel of the standing seam roof.

3.03 COORDINATION

A. Coordinate the installation of the lightning protection system with other trades

B. Coordinate all roof penetrations, fasteners and adhesive with the roofing Contractor prior to installing any materials on the roof.

C. Verify that surfaces are ready to receive work.

D. Verify that all systems that may influence the lightning protection system design are included or referenced on the Shop Drawings.

E. Verify required procedures comply with terms of roofing warranty to prevent voiding of roofing warranty.

3.04 INSPECTION AND CERTIFICATION

A. New Structures:

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1. Upon completion of the installation of the lightning protection system the Contractor shall furnish the UL Master Label Certificate Letter of Findings, certifying that the work meets the UL 96A standard, issued by Underwriters Laboratories Inc.


PETERSEN ALUMINUM S-5 COLOR GUARD SNOW RETENTION SYSTEM WITH UTILITY CLAMP AND PREFINISHED COLOR STRIP TO MATCH ROOF COLOR. SNOW CLIPS SHALL BE PROVIDED AT AFREQUENCY OF ONE (1) CLIP PER ROOF PANEL. SNOW RETENTION SYSTEM SHALL BE MOUNTEDABOVE THE LIGHTNING PROTECTION SYSTEM AT THE AREAS SHOWN ON THE ROOF PLAN. THESYSTEM SHALL BE DESIGNED TO MEET THE SNOW LOAD REQUIRED FOR THIS LOCATION.CONTRACTOR SHALL PROVIDE ALL LABOR, MATERIALS, AND ACCESSORIES FOR A COMPLETEINSTALLATION IN ACCORDANCE WITH THE ROOF MANUFACTURERS INSTRUCTIONS ANDRECOMMENDATIONS. SUBSTITUTE OR ALTERNATE SYSTEMS ARE NOT ALLOWED.

S-5 COLOR GARD

STAINLESS STEEL BOLT AND WASHER

UTILITY CLAMP

STAINLESS STEEL SET SCREWS

DIRECTION OFROOF SLOPE

ROOF PANEL SEAMTITE-LOC PLUS - COORDINATEUTILITY CLAMP AND SNOW CLIPWITH SEAM TYPE AND HEIGHT

S-5 SNOW CLIP - PROVIDE (1) ONE PER PANEL

THIS DETAIL IS SCHEMATIC IN NATURE ANDDOES NOT REFLECT EXACT DIMENSIONSAND CONFIGURATION OF THIS SYSTEM ANDIS MEANT TO CONVEY THE INTENT OF THEDESIGN ONLY. THIS DETAIL HAS BEENDEVELOPED BASED ON THE ROOFMANUFACTURERS STANDARD DETAIL FORTHIS SYSTEM. GRAPHIC OMMISSION OF ANYPART OF THIS ASSEMBLY DOES NOTCONSTITUTE GROUNDS FOR ADDITIONALCOMPENSATION.

LIGHTNING PROTECTIONAIR TERMINAL BASE.REFER TO SPECIFICATIONS

LIGHTNING PROTECTIONCONDUCTOR CLAMP.REFER TO SPECIFICATION.

METAL PANEL ROOFING.REFER TO SPECIFICATIONS

LIGHTNING PROTECTIONCONDUCTOR. REFER TOSPECIFICATIONS

LIGHTNING PROTECTIONAIR TERMINAL. REFER TOSPECIFICATIONS

AIR TERMINAL SPACING, MATERIAL COMPATIBILITY, AND MATERIAL CLASS SHALL CONFORM TONFPA 780, UL96 AND UL 96A REQUIREMENTS

AIR TERMINALS SHALL BE UL LISTED.

INSTALL NEW GOOSE NECK RIGID CONDUIT FOR ANY NECESSARY GROUNDING PENETRATIONSTHROUGH THE ROOF.

THIS WORK SHALL BE PERFORMED BY A U.L. LISTED CONTRACTOR LICENSED TO PERFORM SUCHWORK IN THE STATE OF GEORGIA, AND HAS A MINIMUM OF FIVE (5) YEARS EXPERIENCE INSTALLINGLIGHTNING PROTECTION SYSTEMS.

INSTALL NEW SNOW / ICE RETENTION SYSTEM UPSLOPE OF THE LIGHTNING PROTECTION SYSTEM.

NOTES:

1.

2.

3.

4.

5.

CONTINUOUS SEALANT AT PERIMETER OFPRE-ENGINEERED CANOPY

FLAT METAL PANELS AT UNDERSIDE OF CANOPYBY PRE-ENGINEERED CANOPY MANUFACTURER

PRE-FINISHED PERIMETER CHANNELGUTTER-SLOPE AWAY

CONNECTIONS AS REQUIRED BY PRE-ENGINEERED CANOPY MANUFACTURER - PROVIDECONTINUOUS SEALANT AROUND ALL THROUGH -WALL ANCHORS AND ANCHOR PLATES

PRE-ENGINEERED CANOPY MANUFACTURER SHALLSUPPLY COUNTER FLASHING OVER THROUGH-WALL CONNECTIONS. LAP CONTINUOUS THROUGH-WALL FLASHING OVER CANOPY FLASHINGPROTECT ALL DISSIMILAR METALS FROM CONTACTWITH EACH OTHER TO PREVENT CORROSION

CONNECTIONS AS REQUIRED BY PRE-ENGINEEREDCANOPY MANUFACTURER - PROVIDE CONTINUOUSSEALANT AROUND ALL THROUGH -WALL ANCHORS ANDANCHOR PLATES -PAINT ANCHOR PLATES TO MATCHCANOPIES -PROVIDE PRESSURE TREATED WOODBLOCKING AS REQUIRED

ATTACHMENT STUDS AS REQUIRED BYCANOPY MANUFACTURER

PRE-FINISHED 1" DIAMETERMIN. HANGER ROD ASREQUIRED BY PRE-ENGINEERED CANOPYMANUFACTURER

CONTINUOUS SEALANT

CL

REFER TO STRUCTURAL FOR CANOPYSUPPORT STRUCTURE

NOTES:

1.

2.

CANOPY SHOP DRAWINGS SHALL BE SEALED ANDSIGNED BY A PROFESSIONAL ENGINEER REGISTEREDIN THE STATE OF GEORGIA AND SUBMITTED TOGWINNETT COUNTY BUILDING PLAN REVIEW FORREVIEW AND APPROVAL AFTER APPROVAL OF THEPROJECT ENGINEER OF RECORD.

CANOPY MANUFACTURER'S SPECIALITY ENGINEERSHALL PROVIDE DETAILS WHICH INDICATE THEREQUIRED CONNECTION OF EACH EXTERIOR CANOPYTO THE SUPPORTING STRUCTURE TO ADEQUATELYRESIST THE APPLICABLE DESIGN LIVE AND WINDLOADS.

1' -

0"2'

- 8"

MOUNTING CONDITION VARIES BASED ONCANOPY HEIGHT -REFER TO A4.1 FORCANOPY HEIGHTS

PIPE FLASHING PER ROOFMANUFACTURER'S RECOMMENDATIONS

VENT PIPE

STRUCTURAL STEEL DECKING -REFER TO STRUCTURAL

PRE FINISHED STANDINGSEAM METAL ROOF PANELSYSTEM - REFER TOSPECIFICATIONS

40 MIL. FM APPROVED HTUNDERLAYMENT APPROVED FORUSE BY ROOFING MANUFACTURERFOR WARRANTY COVERAGE

4" R-20 MIN. EXTRUDEDPOLYSTYRENE RIGIDINSULATION MECHANICALLYATTACHED TO STRUCTURALSTEEL DECKING BETWEEN "Z"PURLINS

CONTINUOUS BEAD OF SEALANTBETWEEN PANEL AND FLASHING

PRE FINISHED STANDING SEAM METALROOF PANEL SYSTEM - REFER TOSPECIFICATIONS

40 MIL. FM APPROVED HTUNDERLAYMENT APPROVED FOR USEBY ROOFING MANUFACTURER FORWARRANTY COVERAGE

4" R-20 MIN. EXTRUDED POLYSTYRENE RIGIDINSULATION MECHANICALLY ATTACHED TOSTRUCTURAL STEEL DECKING BETWEEN "Z"PURLINS

STRUCTURAL STEEL BAR JOISTS OR LIGHTGAUGE METAL TRUSSES SPACED AT 6'-4"O.C. MAX.

4" HIGH GALVANIZED "Z" PURLINSATTACHED TO STRUCTURAL STEELDECKING - REFER TO SPECIFICATIONS

2X PRESSURE TREATED WOODBLOCKING/NAILERS

PRESSURE TREATED 3/4" PLYWOODFASCIA WRAPPED WITH PRE-FINISHEDMETAL TO MATCH ROOF PANELS


STEEL ANGLE -REFER TO STRUCTURAL

STRUCTURAL STEEL DECKING - REFER TOSTRUCTURAL


40 MIL. FM APPROVED HT UNDERLAYMENTAPPROVED FOR USE BY ROOFING MANUFACTURERFOR WARRANTY COVERAGE


STRUCTURAL STEEL BAR JOISTS -REFER TOSTRUCTURAL




CONTINUOUS GALVANIZED METALKEEPER CLEAT FLASHING


STEEL ANGLE - REFER TO STRUCTURAL

CONTINUOUS PRE-FINISHED METALGABLE FLASHING WITH "Z" CLOSURE

STRUCTURAL STEEL DECKING - REFER TOSTRUCTURAL


40 MIL. FM APPROVED HT UNDERLAYMENTAPPROVED FOR USE BY ROOFINGMANUFACTURER FOR WARRANTY COVERAGE


STRUCTURAL STEEL BAR JOISTS -REFER TOSTRUCTURAL



PRE-FINISHED METAL GUTTER - REFERTO ROOF PLANS

PRE-FINISHED METAL DOWNSPOUT -REFER TO ROOF PLANS


METAL GUTTER STRAPS 36" O.C. MAX.

METAL DRIP FLASHING


STEEL ANGLE -REFER TO STRUCTURAL

STEEL ANGLE BRICK LEDGE-REFER TO STRUCTURAL

HEAD WALL FLASHING; 8" END LAPS WITHCONTINUOUS SEALANT AT LAPS

REGLET FLASHING CUT INTO MORTARJOINT WITH 8" END LAPS

STRUCTURAL STEEL DECKING - REFERTO STRUCTURAL

SELF-ADHERING THRU-WALL FLASHING- COORDINATE LOCATION WITH METALROOF FLASHING

LOW SLOPE MODIFIED SBS WITHREFLECTIVE CAP SHEET -REFER TOSPECIFICATIONS

BOND BEAM -REFER TO STRUCTURAL

3/8" COTTON WEEPS AT 16" O.C. -CUTWEEPS FLUSH WITH BRICK AT PUNCHLIST -LAY COTTON WEEPS A MINIMUM OF12" IN MORTAR CAVITY

2" TRAPEZOIDAL SHAPED MORTAR NETWITH INSECT SCREEN

STEEL ROOF JOIST IN JOINT POCKET-REFER TO STRUCTURAL

COUNTERFLASHING PER ROOFINGMANUFACTURERS RECOMMENDATIONS

PERLITE CANT STRIP

GROUT SOLID BELOW THRU-WALLFLASHING

STEEL ANGLE -REFER TOSTRUCTURAL

CONCRETE SLAB OVER VAPORMITIGATION SYSTEM OVER COMPACTEDSTONE - REFER TO VMS DRAWINGS FORSTONE REQUIREMENTS -COMPACTIONREQUIREMENTS SHALL BE PER THEGEOTECHNICAL ENGINEERS WRITTENRECOMMENDATIONS

8" CMU IN RUNNING BOND PATTERN

CONCRETE SIDEWALK -REFERTO CIVIL

CONCRETE FOOTING -REFER TO STRUCTURAL

CAST IRON DOWNSPOUT BOOTBY J.R. HOE AND SONS ORARCHITECT APPROVED EQUALPRIOR TO BID. SHOP DRAWINGSMUST BE APPROVED BYARCHITECT PRIOR TOPURCHASE. SAND, REPRIME,AND PAINT ALL SURFACESINCLUDING BACK PRIOR TOINSTALLATION. - REFER TOFINISH SCHEDULE FOR COLOR.

SEALANT

PRE-FINISHED METALDOWNSPOUT- PROVIDE CLEANOUT IN FACE OF DOWNSPOUTABOVE METAL BOOT

HORIZONTAL JOINT REINFORCINGAT 16" O.C. VERTICAL WITHMASONRY VENEER ANCHORS AT16" O.C. HORIZONTAL AND VERTICAL

4" DIAMETER P.V.C. PLUG

PROVIDE 12" X 12" X 6"CONCRETE PAD ATLOCATIONS INCOMPACTED GRADE

CLEAN OUT - REFER TOCIVIL FOR LOCATIONS

4" DIAMETER P.V.C.ELBOW

6" X 4" DIAMETER P.V.C.WYE

P.V.C. DRAIN - REFER TOCIVIL FOR CONTINUATION

8" DIAMETER P.V.C. PIPE

48"

STAINLESS STEEL TAMPER- PROOF SCREW(2)

4"X4" CLEANOUT WITH NEOPRENEGASKET

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1 1/2" = 1'-0"A3.26 Pre-Engineered Canopy Detail

1" = 1'-0"A3.21 Pipe Penetration Detail

1 1/2" = 1'-0"A3.23 Roof Rake Detail

1 1/2" = 1'-0"A3.22 Roof Peak Detail

1 1/2" = 1'-0"A3.24 Roof Eave Detail

1 1/2" = 1'-0"A3.27 Roof Head Wall Detail

3/4" = 1'-0"A3.25 Typical Detail at Downspout Boot

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1 1/2" = 1'-0"A3.28 Snow Retention Detail

1 1/2" = 1'-0"A3.29 Lightning Protection Detail

4