march 25, 2015 florida building commission accreditor ...€¦ · slide 1: removed reference to...

March 25, 2015 Florida Building Commission Accreditor Joseph D Belcher JDB Code Service, Inc. RE: Course no. 700.0 Advanced FBC, Energy Conservation, 5th Edition (2014) Mr. Belcher, Enclosed are the revised slides and syllabus for the above referenced course. The following list depicts the actual changes to the syllabus that were made per your comments upon review for accreditation.

Course Title: Modified to reflect proper name Course Description: Modified to reflect proper name Topical Outline: Modified to reflect proper name Footer: Modified to include address, phone number and email address

Additionally, to ease in the re-review process, I have included each slide that was modified and the changes that were made.

Slide 1: Removed reference to narrated course Slide 2: Modified title to reflect proper name of code Slide 4: Modified bullet # 3 and added 2 sub-bullets describing that which you have noted. Slides 5 – 25: Added ‘R’ to section numbers specific to residential Slides 45 – 73: Added / verified ‘R’ for section numbers specific to residential Slide 14: Added note to explain the effect of the removal from the exception. Slide 21 – 22: Reordered per your suggestion. Slide 24: Added section number per your suggestion. Slide 76: Removed entire slide

Thank you. Sincerely, Rachel Doty Instructional Design Specialist Contractors Institute 8301 Joliet Street Hudson, FL 34667 (727)861-7225 (x:108) [email protected]

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1

Florida Building Code, Energy Conservation, 5th Edition (2014) Advanced Code Module,

Chapter 4Chapter 4

2

Course Objectives

Upon completion of this module, participants should be able to: Define key terminology used by residential

portion of the Florida Building Code, Energy Conservation

Identify the scope of the residential provisions found in the Florida Building Code, Energy Conservation

Recognize areas of applicability pertaining to residential application that require compliance by the Florida Building Code, Energy Conservation with an emphasis on residential provisions.

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Broken into 2 sections Commercial provisions – (CE)

5 chapters Appendix C - Forms

Layout

Residential provisions – (RE) 5 chapters Appendix B - End Use Energy Loads Appendix C - Forms

Each section contains its own set of referenced standards

4

Residential Provisions Overview

Chapter 1 – Scope and Administration Part 1 – Scope and Application Part 2 – Administration and Enforcement

Chapter 2 – Definitions Chapter 3 – General Requirements Chapter 4 – Residential Energy Efficiency Chapter 5 – Referenced Standards Appendix B – Calculation of End Use Energy

Loads Appendix C - Forms

5

History and Background

In 1977, the Florida Legislature passed laws that required local governments to adopt standards for energy-efficient buildings.

In 1980, the Florida Model Energy Efficiency Code for Building Construction became the statewide uniform code.

In 2002, the Florida Building code was adopted, the Florida Energy Code was incorporated as Chapter 13Florida Energy Code was incorporated as Chapter 13. Southern Standard Building Code initially used as base

model. In 2010, Chapter 13 was removed from the Building

volume and became a separate volume. 2009 International Energy Efficiency Code was first used

as the base model for the Florida Building Code, Energy. In 2014, modifications to the 5th edition separated the

requirements for Commercial and Residential. 2012 International Energy Efficiency code used as base

model. 6

2

R101 Scope and General Req.

R101.1 Title - This code shall be known as the Florida Building Code, Energy Conservation and shall be cited as such. It is referred to herein as ''this code.“

R101.2 Scope - This code applies to residential buildings and the buildings sites and associated systems and equipment.

R101.3 Intent - This code shall regulate the design and construction of buildings for the effective use and conservation of energy over the useful life of each building. This code is intended to provide flexibility to permit the use of innovative approaches and techniques to achieve this objective. This code is not intended to abridge safety, health or environmental requirements contained in other applicable codes or ordinances

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R101.4 Applicability - Where in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern. Where there is a conflict between a general requirement and a specific requirement therequirement and a specific requirement, the specific requirement shall govern.

R101.4.1 Existing Building - Except as specified in this chapter, this code shall not be used to require the removal, alteration or abandonment of, nor prevent the continued use and maintenance of, an existing building or building system lawfully in existence at the time of adoption of this code.

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R101.4.2 Historic Building. - Any building or structure that is listed in the State or national Register of Historic Places; designated as a historic property under local or state designation law or survey; certified as a contributing resource with a National Register listed or locally designatedNational Register listed or locally designated historic district; or with an opinion or certification that the property is eligible to be listed on the national or State Registers of Historic Places either individually or as a contributing building to a historic district by the State Historic Preservation Officer or the Keeper of the National Register of Historic Places, are exempt from this code.

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R101.4.3 Additions, alterations, renovations or repairs -Additions, alterations, renovations or repairs to an existing building, building system or portion thereof shall conform to the provisions of this code as they relate to new construction without requiring the unaltered portion(s) of the existing building or building system to comply with this codecomply with this code. Additions, alterations, renovations or repairs shall not

create an unsafe or hazardous condition or overload existing building systems.

An addition shall be deemed to comply with this code if the addition alone complies or if the existing building and addition comply with this code as a single building.

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Exception: The following need not comply provided the energy use of the building is not increased: 1. Storm windows installed over existing fenestration. 2. Glass only replacements in an existing sash and frame. 3. Surface applied window film on existing fenestration

assemblies. 4 E i ti ili ll fl iti d d i 4. Existing ceiling, wall or floor cavities exposed during construction provided that these cavities are filled with insulation.

5. Construction where the existing roof, wall or floor cavity is not exposed.

6. Reroofing for roofs where neither the sheathing nor the insulation is exposed. Roofs without insulation in the cavity and where the sheathing or insulation is exposed during reproofing shall be insulation either above or below the sheathing.

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Exception Continued: 7. Replacement of existing doors that separate

conditioned space from the exterior shall not require the installation of a vestibule or revolving door, provided, however, that an existing vestibule that separates a conditioned space from the exterior shall not be removedremoved.

8. Alterations that replace less than 50 percent of the luminaries in a space, provided that such alterations do not increase the installed interior lighting power.

9. Alterations that replace only the bulb and ballast within the existing luminaries in a space provided that the alteration does not increase the installed interior lighting power.

10. Swimming pool filtration pumps and motors

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3


R101.4.4 Change in occupancy or use - Spaces undergoing a change in occupancy that would result in an increase in demand for either fossil fuel or electrical energy shall comply with this code.

R101.4.5 Change in space conditioning - Any non-conditioned space that is altered to become conditioned

h ll b d b b h f llspace shall be required to be brought into full compliance with this code.

R101.4.6 Mixed occupancy - Where a building includes both residential and commercial occupancies, each occupancy shall be separately considered and meet the applicable provisions of the commercial provisions or residential provisions of this code.

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R101.4.7 Building systems and components -Thermal efficiency standards are set for the following building systems and components where new products are installed or replaced in existing buildings and for which a permit must be obtained. New products shall meet the minimum efficiencies allowed by this code for the following systems and components:


and components: Heating, ventilating or air conditioning systems. Service water or pool heating systems Lighting systems. Replacement fenestration

NOTE: All replacement windows will now have to meet the new energy code requirements, whether one or all windows are being replaced.

This is no longer an exception to the code.

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Exceptions: 1. Where part of a functional units is repaired or replaced.

For example, replacement of an entire HVAC system is not required because a new compressor or other part does not meet code when installed with an older system.

2. If the unit being replaced is itself a functional unit, such as a condenser it does not constitute a repair


such as a condenser, it does not constitute a repair. Outdoor and indoor units that are not designed to be operated together must meet the U.S. Department of Energy certification requirements contained in Section R303.1.2 for Residential. Matched systems are required; this match may be verified by any one of the following means: AHRI Data Accredited laboratory Manufacturer's letter Letter from registered professional engineer (P.E.), State of

Florida 15


Exceptions: 3. Where existing components are utilized with

a replacement system, such as air distribution system ducts or electrical wiring for lights, such components or controls need not meet code if meeting code would require that component’smeeting code would require that component’s replacement.

4. Replacement equipment that would require extensive revisions to other systems, equipment or elements of a building where such replacement is a like-for-like replacement IE: through-the-wall condensing units and PTACs,

chillers, and cooling towers in confined spaces.

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R101.4.7.1 Replacement HVAC equipment. R101.4.7.1.1 Existing equipment efficiencies. Existing

cooling and heating equipment in residential applications need not meet the minimum equipment efficiencies, including system sizing and duct sealing.

R101.4.8 Exempt buildings - Building exempt from the p g g pprovisions of the Florida Building code, Energy Conservation, include existing buildings except those considered renovated buildings, changes of occupancy type, or previously unconditioned buildings to which comfort conditioning is added. Exempt buildings include those specified in Sections

R101.4.8.1 through R101.4.8.4

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R101.4.8 Exempt Buildings

R101.4.8.1 Federal Standards - Any building for which federal mandatory standards preempt state energy codes.

R101.4.8.2 Hunting or recreational buildings less than 1,000 square feet - Any building of , q y gless than 1,000 square feet whose primary use is not as a principal residence and which is constructed and owned by a natural person for hunting or similar recreational purposes is exempt from this code; however no such person may building more than one exempt building in any 12-month period.

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4

R101.4.8 Exempt Buildings

R101.4.8.3 Historic buildings - Any building meetings the criteria for historic buildings in Section R101.4.2.

R101.4.8.4 Low energy buildings as described in Section R101.5.2 - Such buildings shall not contain electrical, plumbing or mechanical systems which have been designed to accommodate the future installation of heating or cooling equipment.

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R101.5 Compliance Software tools

R101.5 Compliance - Residential buildings shall meet the Residential Provisions of this code. Commercial buildings shall meet the Commercial Provisions. R101.5.1 Compliance materials - The Florida Building

Commission shall approve specific computer software, worksheets, compliance manuals and other similar , pmaterials that meet the intent of this code. Commission approved code compliance demonstration forms can be found in Table R101.5.1.

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R101.5.1.1 Residential buildings three stories or less. R101.5.1.1.1 Building thermal envelope alternative. An

accurately completed Residential Building Form R402 shall be submitted to the code official to demonstrated code compliance by this method. Alternatively, a Florida RES check computer printout may be submitted to demonstrated compliance by Sections R402, R403 and R404. p y ,

R101.5.1.1.2 Simulated performance alternative. An accurately completed Residential Building Form R405 (generated by commission approved software) demonstrating that code compliance has been achieved shall be submitted to the building official for compliance by Section R405.

R101.5.1.2 Commercial and residential buildings greater than 3 stories. See Florida Building Code, Energy Conservation: Commercial Provisions.

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R101.5.2. Low energy buildings. The following buildings, or portions thereof, separated from the remainder of the building by building thermal envelope assemblies complying with this code shall be exempt from the buildingthis code shall be exempt from the building thermal envelope provisions of this code: 1. Those with a peak design rate of energy

usage less than 3.4 Btu/h * ft2 (10.7 W/m2) or 1.0 watt/ft2 (10.7 W/m2) of floor area for space conditioning purposes.

2. those that do not contain conditioned space.

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R102 Alternate Materials - Methods of Construction, Design or Insulating

Systems R102.1 General - This code is not intended to prevent the

use of any material, method of construction, design or insulating system not specifically prescribed herein, provided that such construction, design or insulating system has been approved by the code official as meeting the intent of this code.

R102 1 1 Ab d Th d ffi i l R102.1.1 Above code programs. The code official or other authority having jurisdiction shall be permitted to deem a national, state or local energy efficiency program to exceed the energy efficiency required by this code. Buildings approved in writing by such an energy efficiency program shall be considered in compliance with this code. The requirements identified as “mandatory” in Chapter 4 shall be met.

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R103 Construction Documents

R103.1 General. Construction documents and other supporting data shall be submitted in one or more sets with each application for a permit. The construction documents shall be prepared by a registered design professional where required by the statues of the jurisdiction in which the project is to be constructed. Where special conditions exist the code official isWhere special conditions exist, the code official is authorized to require necessary construction documents to be prepared by a registered design professional. Exception: The code official is authorized to waive the

requirements for construction documents or other supporting data if the code official determine they are not necessary to confirm compliance with this code.

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5

R103 Construction Documents

R103.1.1 Compliance certification. R103.1.1.1 Code Compliance demonstration.

R103.1.1.1.1. Residential. No license or registration is required to prepare the code compliance form for single-family residential dwellings, duplexes and townhouses.

R103.1.1.1.2 Commercial and multiple-family residential. p yCompletion of procedures demonstrating compliance with this code for commercial and multiple-family residential building shall be in accordance with the provisions of Section 481.229, Florida statutes, or Section 471.003, Florida Statues.

Exception: Where HVAC systems are nominal 15 tons per system or smaller, commercial building energy raters certified in accordance with Section 553.99, Florida Statues, or as authorized by Florida statutes, may prepare the code compliance form.

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Chapter 2 Definitions

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AIR BARRIER – Relating to air distribution systems, a material object(s) which impedes or restricts the free movement of air under specified conditions. For fibrous glass duct, the air barrier is its foil cladding For flexible nonmetal duct, the air barrier is the

nonporous core p For sheet metal duct and air handling units, the air

barrier is the metal in contact with the air stream. For mechanical closets, the air barrier may be a uniform

panelized material such as gypsum wall board which meets ASTM C36, or it may be a membrane which acts alone as an air barrier which is attached to a panel, such as the foil cladding of fibrous glass duct board.

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AIR BARRIER (Continued) Relating to the building envelope, air barriers comprise the places of

primary resistance to air flow between the interior spaces of a building and the outdoors and the planes of primary air flow resistance between adjacent air zones of a building, including planes between adjacent conditioned and unconditioned air spaces of a building.

To be classed as an air barrier a building plane must be substantially To be classed as an air barrier, a building plane must be substantially leak free; that is, it shall have an air leakage rate not greater than 0.5 cfm/ft2 when subjected to an air pressure gradient of 25 pascal.

In general, air barriers are made of durable, nonporous materialsand are sealed to adjoining wall, ceiling or floor surfaces with a suitable long-life mastic. House wraps and taped and sealed drywall may constitute an air barrier, but

dropped acoustical tile ceilings (T-bar ceilings) may not. Batt insulation facings and asphalt-impregnated fiberboard and felt paper are

not considered air barriers.

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BUILDING THERMAL ENVELOPE – The basement walls, exterior walls, floor, roof, and any other building elements that enclose conditioned space. This boundary also includes the boundary between conditioned

space and exempt or unconditioned space. See “Adjacent wall, ceiling or floor.”

ADJACENT WALL CEILING or FLOOR – A wall ceiling or floor of ADJACENT WALL, CEILING or FLOOR – A wall, ceiling or floor of a structure that separates conditioned space from enclosed but unconditioned space, such as an unconditioned attached garage, storage or utility room.

APPROVED – Approval by the code official as a result of investigation and tests conducted by him or her, or by reason of accepted principles or tests by nationally recognized organizations.

CODE OFFICIAL – The officer or other designated authority charged with the administration and enforcement of this code, or a duly authorized representative.

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CONDITIONED SPACE – An area or room within a building being heated or cooled, containing uninsulated ducts, or with a fixed opening directly into an adjacent conditioned space.

CONTINUOUS AIR BARRIER – A combination of materials and assemblies that restrict or preventmaterials and assemblies that restrict or prevent the passage of air through the building thermal envelope.

DRAWBAND – A fastener which surrounds and fastens a duct fitting with either the inner lining or the outer jacket of flexible ducts. IE: Tension ties, clinch bands, draw ties, and straps

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6


ENERGY – The capacity for doing work. Multiple forms that may be transformed

from one into another IE: thermal (heat), mechanical (work), electrical,

d h i land chemical. Customary measurement units are British

Thermal Units (BTU)

ENERGY ANALYSIS – A method for estimating the annual energy use of the proposed design and standard reference design based on estimates of energy use.

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PROPOSED DESIGN – A description or computer representation of the proposed building used to estimate annual energy use for determining compliance based on total building performance or design energy costbuilding performance or design energy cost.

STANDARD REFERENCE DESIGN – A version of the proposed design that meets the minimum requirements of this code and is used to determine the maximum annual energy use requirement for compliance based on total building performance.

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ENERGY COST – The total estimated annual cost for purchased energy for the building functions regulated by this code, including applicable demand changes.

ENERGY SIMULATION TOOL – An approvedppsoftware program or calculation-based methodology that projects the annual energy use of a building.

EXTERIOR WALL – Walls including both above-grade walls and basement walls which form a boundary between a conditioned and an outdoor space.

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INFILTRATION – The uncontrolled inward air leakage through cracks and crevices in any building element and around windows and doors of a building caused by pressure differences across these elements Caused by wind, inside and outside temperature

differences (stack effect), and imbalances between supply and exhaust air systems.

INSULATION – Material mainly used to retard the flow of heat

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OUTDOOR (OUTSIDE) AIR – Air that is outside the building envelope or is taken from outside the building that has not been previously circulated through the building.

OUTSIDE – The environment exterior to the conditioned space of the building May include attics, garages, crawlspaces, etc. May not include return air plenums

PLENUM – A compartment or chamber to which one or more ducts are connected, that forms a part of the air distribution system, and that is not used for occupancy or storage. A plenum often is formed in part or in total by portions

of the building.

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POSITIVE INDOOR PRESSURE – A positive pressure condition within a conditioned space cause by bringing in more outside air than the amount of air that is exhausted and/or lost through air leakage.

THERMAL ENVELOPE – the primary insulation layer of a building the part of the envelope that provides the greatest

resistance to heat flow to or from the building. THERMAL ISOLATION – Physical and space conditioning

separation from conditioned spaces. The conditioned spaces shall be controlled as separate zones for heating and cooling or conditioned by separate equipment.

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7


C-FACTOR (THERMAL CONDUCTANCE) – The coefficient of heat transmission (surface to surface) through a building component or assembly, equal to the time rate of heat flow per unit area and the unit temperature difference between the warm side and cold side surfaces (Btu/h ft2 x F°) [W/(m2 x K)]

U-FACTOR (THERMAL TRANSMITTANCE) - The coefficient of heat transmission (air to air) through a building component or assembly, equal to the time rate of heat flow per unit area and unit temperature difference between the warm side and cold side air films (Btu/h x ft2 x F°) [W/(m2 x K)]

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F-FACTOR – The perimeter heat loss factor for slab-on-grade floors (Btu/h x ft x F°) [W/(m x K)]

R-VALUE (THERMAL RESISTANCE) – TheR VALUE (THERMAL RESISTANCE) The inverse of the time rate of heat flow through a body from one of its bounding surfaces to the other surface for a unit temperature difference between the two surfaces, under steady state conditions, per unit area (h x ft2 x F°/ Btu) [(m2 x K)/W]

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SEAL or SEALING – AIR DUCT – The use of closure products, either welds, mastic, mastic plus embedded fabric, adhesives, caulking, gaskets, pressure sensitive tapes, heat-activated tapes or combinations thereof as allowed by specific sections of this code, to close cracks, joints, seams, and other openings in the air barriers or air duct air handling units and plenum chambers for theduct, air handling units, and plenum chambers for the purpose of preventing air leakage. No joining of opening from which a closure product is

absent shall be considered sealed unless considered otherwise in specific cases identified by this code.

Closeness of fit between mated parts alone shall not be considered a seal.

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SPACE – An enclosed space within a building. The classifications of spaces are as follows for the purpose of determining building envelope requirements. Conditioned space: a cooled space, heated p p

space or indirectly conditioned space or unvented attic assembly Cooled space: an enclosed space within a building

that is cooled by a cooling system whose sensible output capacity exceeds 5 Btu/h-ft2 of floor area

Heated space: an enclosed space within a building that is heated by a heating system whose output capacity relative to the floor area is greater than or equal to 5 Btu/h-ft2 .

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(CONTINUED) SPACE – An enclosed space within a building. The classifications of spaces are as follows for the purpose of determining building envelope requirements.

Indirectly conditioned space: an enclosed space within a building that is not a heated space or a cooled space, which is heated or cooled indirectly by being connected to adjacent spaces provided:

(a) the product of the U-factor and surface are of the space adjacent to connected spaces exceeds the combined sum of the product of the U-factorconnected spaces exceeds the combined sum of the product of the U factor and the surface area of the space adjoining the outdoors, unconditioned spaces and to or from semiheated spaces -OR-

(b) that air from heated or cooled spaces is intentionally transferred (naturally or mechanically) into the space at a rate exceeding 3 air changes per hour (ach) (I.E. atria)

Unvented attic assembly: as defined in Section R806.5 of the FBC-Residential, these spaces shall not require supply or return outlets.

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(CONTINUED) SPACE – An enclosed space within a building. The classifications of spaces are as follows for the purpose of determining building envelope requirements. Semiheated space: an enclosed space within a

building that is heated by a heating system whosebuilding that is heated by a heating system whose output capacity is greater than or equal to 3.4 Btu/h x ft2 of floor area but is not a conditioned space.

Unconditioned space: an enclosed space within a building that is not a conditioned space or a semiheated space. Crawl spaces, attics and parking garages with natural or

mechanical ventilation are not considered enclosed spaces.

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VENTILATION – The natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from, any space.

VENTILATION AIR – That portion of supply air that comes from outside (outdoors) plus any recirculated air that has been treated to maintain the desired quality of

h dair within a designate space. WHOLE HOUSE MECHANICAL VENTILATION SYSTEM –

An exhaust system, supply system or combination thereof that is designed to mechanically exchange indoor air with outdoor air when operating continuously or through programmed intermittent schedule to satisfy the whole house ventilation rates.

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Chapter 4 – Residential Energy Provisions

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Chapter 4 Residential Energy Provisions – Section R401 General

R401.1 Scope – This chapter applies to residential buildings.

R401.2 Compliance – Projects shall comply with Sections identified as “mandatory” and with either sections identified as “prescriptive” p por the performance approach in Section R405.

R401.3 Energy performance level (EPL) display card (Mandatory) – The building official shall require that an energy performance display card be completed and certified by the builder to be accurate and correct before final approval of the building for occupancy.

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Chapter 4 Section R402 –Building Thermal Envelope

R402.1 General (Prescriptive) – The building thermal envelope shall meet the requirements of Sections R402.1.1 through R402.1.4. R402.1.1 Insulation and fenestration criteria –

The building thermal envelop shall meet the i t f T bl R402 1 1 b d threquirements of Table R402.1.1 based on the

climate zone specified in Chapter 3.

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Chapter 4 Section R402 -Building Thermal Envelope

R402.4 Air Leakage (Mandatory) – The building thermal envelope shall be constructed to limit air leakage in accordance with the requirements of S ti R402 4 1 th h R402 4 4Sections R402.4.1 through R402.4.4. R402.4.1 Building thermal envelope – The

building thermal envelope shall comply with Sections R402.4.1.1 and R402.4.1.2. The sealing methods between dissimilar materials shall allow for differential expansion and contraction.

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R402.4.1.1 Installation – The components of the building thermal envelope as listed in Table R402.4.1.1 shall be installed in accordance with the manufacturer’s instructions and the criteria listed in Table R402.4.1.1, as applicable to the method of construction. Where required by the code official, an approved third party shall inspect all components and verify compliance.

R402.4.1.2 Testing – The building or dwelling unit shall be tested and verified as having an air leakage rate of not exceeding 5 air changes per hour in Climate Zones 1 and 2 (Florida) and 3 air changes per hour in Climate Zones 3 through 8 (Rest of US). Testing shall be conducted with a blower door at a pressure of

0.2 inches w.g. (50 pascals). Where required by the code official, testing shall be conducted

by an approved third party. A written report of the results of the test shall be signed by the part

conducting the test and provided to the code official. Testing shall be performed at any time after creation of all

penetrations of the building thermal envelope. 48

9


During testing: 1. Exterior windows and doors, fireplace and stove

doors shall be closed, but not sealed, beyond the intended weatherstripping or other infiltration control measures;

2. Dampers including exhaust, intake, makeup air, 2. Dampers including exhaust, intake, makeup air, backdraft and flue dampers shall be closed, but not sealed beyond intended infiltration control measures;

3. Interior doors, if installed at the time of the test, shall be open;

4. Exterior doors for continuous ventilation shall be closed and sealed;

5. Heating and cooling systems, if installed at the time of the test, shall be turned off; and

6. Supply and return registers, if installed at the time of the test, shall be fully open. 49

Table R402.4.1.1 – Air Barrier and Insulation Installation

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Table R402.4.1.1 – Air Barrier and Insulation Installation

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Table R403.2 – Ducts

R403.2 Ducts – Ducts and air handlers shall be in accordance with Sections R403.2.1 through R403.2.4 R403.2.1 Insulation (Prescriptive) – Supply ducts in

attics shall be insulated to a minimum of R-8. All other ducts shall be insulated to a minimum of R-6. Exception: Ducts or portions thereof located completely

inside the building thermal envelope. R403.2.2 Sealing (Mandatory) – All ducts, air

handlers, and filter boxes and building cavities that form the primary air containment passageways for air distribution systems shall be considered and sealed in accordance with Section C403.2.7.2 of

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Table R403.2 – Ducts

R403.2.2 Sealing (Mandatory) – All ducts, air handlers, and filter boxes and building cavities that form the primary air containment passageways for air distribution systems shall be considered and sealed in accordance with Section C403.2.7.2 of the Commercial Provisions of this code and shall be shown to meet duct tightness criteria below. Duct tightness shall be verified by testing to Section

803 of the RESNET Standards by either an energy rater certified in accordance with Section 553.99, Florida Statutes or as authorized by Florida States, to be “substantially leak free” by either of the following:

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Table R403.2 – Ducts –Testing criteria

1. Postconstruction test: Total leakage shall be less than or equal to 4 cfm (113.3 L/min) per 100 square feet (9.29 m2) of conditioned floor area when tested at a pressure differential of 0.1 inches w.g. (25 pa) across the entire system, including the manufacturer’s air handler enclosure. All register boots shall be taped or otherwise sealed during the testthe test.

2. Rough-in test: Total leakage shall be less than or equal to 4 cfm per 100 square feet of conditioned floor area when tested at a pressure differential of 0.1 inches w.g. (25 Pa) across the system, including the manufacturer’s air handler enclosure. All registers shall be taped or otherwise sealed during test. If the air handler is not installed at the time of the test, total leakage shall be less than or equal to 3 cfm (85 L/min) per 100 square feet of conditioned floor area.

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10

Table R403.2 – Ducts –Testing criteria EXCEPTIONS

Exceptions: 1. The total leakage test is not required for ducts and air

handlers located entirely within the building thermal envelope.

2. Duct testing is not mandatory for buildings complying by Section 405 of this code.

R403 2 2 1 Sealed air handler – Air handlers R403.2.2.1 Sealed air handler – Air handlers shall have a manufacturer’s designation for an air leakage of no more than 2 percent of the design air flow rate when tested in accordance with ASHRAE 193.

R403.2.3 Building Cavities (Mandatory) –Building framing cavities shall not be used as ducts or plenums.

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R403.2.4 Air-handling units – Air handling units shall not be installed in the attic when a home is brought into code compliance by Section R402. Air-handling units shall be allowed in attics for compliance by Section R405 only if the following conditions are met: 1. The service panel of the equipment is located within 6 feet

of an attic access.of an attic access. 2. A device is installed to alert the owner or shut the unit

down when the condensation drain is not working properly. 3. The attic access opening is of sufficient size to replace the

air handler. 4. A notice is posted on the electric service panel indicating to

the homeowner that the air handler is located in the attic. Said notice shall be in all capitals in 16 point type, with the title and first paragraph in bold:

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57

R403.6 – Heating and cooling equipment (Mandatory)

R403.6.1 Equipment sizing – Heating and cooling equipment shall be sized in accordance with ACCA Manual S based on the equipment loads calculated in accordance with ACCA Manual J or other approved heating and cooling calculation methodologies, based on building loads for the directional orientation of the buildingbuilding. The manufacturer and model number of the outdoor and

indoor units (if split system) shall be submitted along with the sensible and total cooling capacities at the design conditions described in Section R302.1. System sizing calculations shall not include loads created by

local intermittent mechanical ventilation such as standard kitchen and bathroom exhaust systems.

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Section 405 Simulated Performance Alternative (Performance)

R405.1 Scope – This section establishes criteria for compliance using simulated energy performance analysis. Such analysis shall include heating, cooling and service water heating energy only.

R405.2 Mandatory requirements – Compliance with this section requires that the mandatory provisions identified

S 0 2 bin Section R401.2 be met. R405.2.1 Ceiling insulation – Ceiling shall have an

insulation level of at least R-19, space permitting. For the purposes of this code, types of ceiling construction that are considered to have inadequate space to install R-19 include single assembly ceilings of the exposed deck and beam type and concrete deck roofs. Such ceiling assemblies shall be insulated to at least a level of R-10.

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Section R405 Simulated Performance Alternative (Performance)

R405.3 Performance-based compliance –Compliance based of simulated energy performance requires that a proposed residence (proposed design) be shown to have annual total normalized modified loads that are less than or equal to the annual total loads of the standard reference design as calculated in accordance with Appendix B of this standard.

R405.4 Documentation – Documentation of the software used for the performance design and the parameters for the building shall be in accordance with Section R405.4.1 through R405.4.3.

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Section R405 - Compliance Software tools

R405.4.1 Compliance software tools – Computer software utilizes for demonstration of code compliance shall have been approved by the Florida Building Commission in accordance with the requirements of this code. R405 4 2 Compliance report Compliance R405.4.2 Compliance report – Compliance software tools used to demonstrate code compliance by Section R405 shall generate a report that documents that when proposed design complies with Section R405.3 (see Section R101.5.1). The compliance documentation shall include the following information: (Continued on next slide)

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R405.4.2(1-4) - Information required on compliance documentation

1. Address or other identification of the residence; 2. An inspection checklist documenting the building

component characteristics of the proposed design as listed in table R405.5.2(1). The inspection checklist shall show results for the proposed design, and shall document all inputs entered by the user necessary todocument all inputs entered by the user necessary to reproduce the results;

3. Name of individual completing the compliance report; and

4. Name and version of the compliance software tool. Exception: Multiple orientation - When an otherwise

identical building model is offered in multiple orientations, compliance for any orientation shall be permitted by documenting that the building meets the performance requirements in each of the four cardinal (North, East, South, West) orientations. 62

Section R405.4.3 Additional documentation

R405.4.3 Additional documentation – The code official shall be permitted to require the following documents: 1. Certification that an EPL display case signed

by the builder providing that the buildingby the builder providing that the building component characteristics of the proposed design will be provided to the purchaser of the home at time of title transfer.

2. Documentation of the component efficiencies used in the software calculations for the proposed design.

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Section R405.5 Calculation procedure

R405.5 Calculation procedure – Calculations of the performance design shall be in accordance with Section R405.5.1 through R405.5.3. R405.5.1 General – Except as specified by this

section, the standard reference design and , gproposed design shall be configured and analyzed using identical methods and techniques.

R405.5.2 Residence specifications – The standards reference design and proposed design shall be configured and analyzed as specified by Table R405.5.2(1). Table R405.5.2(1) shall include by reference all notes contained in Table R402.1.1.

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Table R405.5.2(1)

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Table R405.5.2(1)

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Table R405.5.2(1)

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Table R405.5.2(1)

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Table R405.5.2(1)

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Table R405.5.2(2)

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Section R405.6 - Calculation software tools

Section R405.6 Calculation software tools –Calculation software where used, shall be in accordance with Sections R405.6.1 through R405.6.3.

R405 6 1 Minimum capabilities Calculation R405.6.1 Minimum capabilities – Calculation procedures used to comply with this section shall be software tools capable of calculation the annual energy consumption of all building elements that differ between the standard reference design and the proposed design and shall include the following capabilities: (continued on the next slide)

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Section R405.6.1

1. Computer generation of the standard reference design using only the input for the proposed design. The calculation procedure shall not allow the user to directly modify the building component characteristics of the standard reference design.

2. Calculation of whole-building (as a single zone) sizing for the heating and cooling equipment in the standard reference design in accordance with Section R403.6.3 C l l ti th t t f th ff t f i d d td 3. Calculations that account for the effects of indoor and outdoor temperatures and part-load ratios on the performance of heating, ventilating and air-conditioning equipment based on climate and equipment sizing.

4. Printed code official inspection checklist listing each of the proposed design component characteristics from Table R405.5.2(1) determined by the analysis to provide compliance, along with their respective performance ratings (e.g., R-value, U-factor, SHGC, HSPF, AFUE, SEER, EF, etc.)

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Section R405.6 – Calculation software tools

R405.6.2 Specific approval – Performance analysis tools meeting the applicable sections of Section R405 shall be permitted to be approved. Tools are permitted to be approvedbased on meeting a specified threshold for a j i di ti Th d ffi i l h ll b itt djurisdiction. The code official shall be permitted to approve tools for a specified application or limited scope.

R405.6.3 Input Values – When calculations require input values not specified by Sections R402,R40, R404 and R405, those input values shall be taken from an approved source.

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Review Course Objectives

Upon completion of this module, participants should be able to: Define key terminology used by residential

portion of the Florida Building Code, Energy Conservation

Identify the scope of the residential provisions found in the Florida Building Code, Energy Conservation

Recognize areas of applicability pertaining to residential application that require compliance by the Florida Building Code, Energy Conservation with an emphasis on residential provisions.

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