4.4continuous vents

8/13/2019 4.4Continuous Vents

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L o u v e r s V e n t i l a t o r s T r i m R o o f C u r b s S p e c i a l t y I t e m s

BUILDINGS MUST BREATHE!

CONTINUOUS VENTILATORS

Standard Size9" throat and 12" throat 10 foot sections. Other sizesavailable upon request. Low profile design can be used forsingle unit or continuous run installation with no disassem-bly.

Integral DampersEasy-moving damper opens to any degree from fully opento completely closed.

DesignAerodynamically proportioned to exclude weather pro-tects air passages and full outlet area.

Bird ScreenFully protected by 4 x 4 mesh galvanized hardware cloth.

ConstructionDurable 26 gauge exterior combined with internal compo-nents of 24, 20 and 18 gauge die formed sheet metal andmachined parts for long service life.

FinishPre-painted or galvalume is standard. Other materials and

finishes available upon request.Drainage AreaContinuous slot bottom of both sides of windbands.

used on metal roofing systems roofs conform to MPs high standards and specifications which have been

developed, tested and proven over many years. They provide an excellent value for the user.


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DIMENSIONS AND TECHNICAL DATAB

A

C

D

E

THROAT

BIRD SCREEN

DIE-FORMED BAFFLE

RAIN SHIELD

DAMPER

LIFTER ARM

SADDLE STRAP

SIDE SKIRT

END CAP OF VENT END CAP OF VENT

DRAIN AT MULTI-UNIT SPLICE

ROOF PANEL MAJOR RIBNOTE:BREAK DRAIN ASSEMBLY TOFOLLOW EXACT ROOF SLOPE.

END CAP OF VENT

DRAIN AT CAPOF END VENT

ROOF PANEL MAJOR RIB

POP RIVET ENDCAP TO DRAINASSEMBLY

PULL BAR CONNECTION:Install turnbuckles betweenadjacent pull bars. With thedampers in the closed position,adjust turnbuckles starting atone end of the run.

PULL BARTURNBUCKLE

STOVE BOLT

DIMENSIONS (In Inches)

Throat* A B C D E

9 13 211

4 141

2 18 281

4*12 17 2812 18 22 33

SHIPPING WEIGHTS

StandardSize Boxed Pkg. Size

Crated

9" 124 lbs 209 lbs 12412" X 1912" X 3012"

12" 148 lbs 218 lbs 12412" X 23" X 35"

* Other sizes available upon request.

Chain-operated damper utilizes a rugged sash chain through chain locking device. Damper is spring-loaded to open and canbe adjusted to any opening from fully open to fully closed. Optional operator packages for multiple units or wall operation areavailable. (See below.)

RAIN SHIELDDAMPEREND CAP

LIFTER ARMGUIDE RODSPRING

PIVOT BRACKET & SADDLE STRAPPULL BAR

PULLEY AT FRAME OR WALL

PULL BAR IN CLOSED POSITION

TO CLOSE DAMPER, PULL CABLE

2" TRAVEL

STANDARD CABLE OPERATION



CHAIN CATCH (OPT.)CHAIN WITH HANDLE

PIVOT BRACKET &SADDLE STRAP

PULL BAR

OPTIONAL PULL CHAIN OPERATION(SINGLE UNITS ONLY)

PULL CHAIN MUST BEREMOVED FOR CONTINUOUSRUN OPERATION


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9" CONTINUOUS VENTILATOR SPECIFICATIONSVentilators are of low profile design to provide gravity type ventilation.

Birdscreen is provided to prevent nesting and each unit contains flashing for eithersingle unit or continuous-run installation.

Each unit is 9" x 10' with a base ventilating capacity of 2700 CFM at 20

temperature differential with a 25' stack height.

Exterior parts are 26GA. G90 galvanized, painted galvanized or galvalume.ASTMA446.

Interior parts are all of G90 galvanized steel.

Substructure consists of 10GA. saddle straps with interior baffles of 24GA.

Pull bars and pivot brackets are of 20GA. Lifter arms and damper slides are of18GA.

Manual operation is through activation of pull bar, which is attached to bell-cranked type lifter arms connected to damper with teflon coated pins throughdamper slides.

Dampers are spring loaded to remain in open position until pull bar isoperated and locked in the closed position. Dampers operate in vertical manor.

Birdscreen is 4x4 mesh galvanized hardware cloth.


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B

A

C

D

E

THROAT

DIMENSIONS (In Inches)

Throat A B C D E4 614 1212 9 10 18

9 13 2114 1412 18 2814

12 17 2812 18 22 33

18 2634 4558 3058 30 49

24 3312 57 3838 3618 5818

36 4712 8114 5358 55 8312

SHIPPING WEIGHTS

Size Boxed Standard Crated Pkg. Size

9" 124 lbs 209 lbs 12412" X 1912" X 3012"

12" 148 lbs 218 lbs 12412" X 23" X 35"


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WELDED FRAME VENTILATOR DIMENSIONS

A A/2 B C D E F G H J K L M N P WT.

15 712 39 2612 8 2234 1138 1138 978 5 612 712 1678 8 25

18 9 4558 3058 1058 2634 1338 1338 11 578 814 9 1858 912 30 275#

20 10 49 3258 1014 2834 1438 1438 1138 8 918 10 1734 9 33

24 12 57 3838 1178 3312 1634 1634 1358 818 914 12 2112 11 3618 324#

30 15 7018 45916 1438 41 2012 2012 14 912 1158 16 2658 1138 4914

BE

M

A (THROAT)

P

H

G L

J

F

D

C

N

BIRD SCREEN

EXTERIOR FRAME

RAIN SHIELD

INTERIOR FRAME

SADDLE STRAP

SIDE

SKIRT

K

WELDED FRAME RIDGE VENTILATORS

NOTE: EXTERIOR AND INTERIOR FRAME MADE OF 18" X 1 12" X 1 12" ANGLE HOT-DIPPED GALVANIZED AFTER

WELDING. ALL OTHER PARTS MADE OF 22 GA. SHEET METAL, STANDARD WHITE OR GALVALUME.


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Table of Capacities for Continuous Ventilators

CAPACITY:

To determine capacity per unit, multiply Base Rating by Temperature-Height Factor: CFM = Base x

Temperature-Height Factor

Based on fresh air intake area 11/2times ventilator throat area. Assumes 5 mph wind speed.

Temperature-Height FactorsTemperature Difference Base Ratings

Height 5 10 15 20 25 30 35 40 45 Size C.F.M.

10' .37 .49 .58 .64 .70 .76 .81 .86 .95 4" 1200

15' .42 .60 .71 .80 .86 .92 .99 1.05 1.09 9" 270020' .53 .70 .81 .92 .99 1.07 1.14 1.22 1.26 12" 3600

25' .58 .77 .89 1.00 1.08 1.18 1.25 1.33 1.39 15" 4500

30' .63 .83 .97 1.08 1.17 1.28 1.36 1.45 1.50 18" 5400

35' .66 .87 1.02 1.14 1.24 1.35 1.44 1.51 1.58 24" 7200

40' .70 .93 1.08 1.22 1.30 1.41 1.50 1.61 1.68 30" 9000

45' 74 96 1 12 1 28 1 38 1 48 1 59 1 68 1 75 36" 10800

MP



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METALLIC PRODUCTS CONTINUOUS VENTILATORDESIGN EVALUATION AND CERTIFICATION

This is to certify that the construction of the Metallic Products 10ft. sections of ridge ventilators with 10ga. Base Straps, 24 ga. Baffles, and 26 ga. Sides, Ends, Skirts and Dampers will withstand wind loadsof 100 MPH when adequately supported by the roof panel to which it is attached. Minimum requiredattachment is No. 14 self tapping screw to the top of each major roof panel rib.

Wind load is determined in accordance with the MBMA Design Manual procedure. The following analysis

could be construed as Parts and Portions of the building structure, such as load supporting systems ofstructural roof panels, purlins, bracing, and framing.

The typical installation procedure for vents is to fasten each side skirt to the roof panel with a minimumof 1-#14 STS @ 12" o.c. (2 fasteners per linear foot of vent). Various Manufacturers test data has indicatedthat the resistance of these fasteners exceeds the design values used by Metallic Products by a factorin excess of 2 1/2 to 1. This design value is 50 lbs. pull out and 100 lbs. shear per fastener when installedin 26 ga. galvanized panels of 50,000 psi minimum yield stress.

The probable extreme standard condition would be a roof with mean height of 60 ft. and a slope between10 and 30 degrees (4/12 included).

1. Assume the clear distance at the ventilator between roof sheets to be 24" max. (This is probablygreater than would occur for a 12" throat vent.)

2. Assume total vent is in Z edge strip. Building would have to be at least 100 ft.wide and 25 ft.high at the eave.

3. Velocity Pressure q = 30.4 PSF (100 MPH) (Table 5.2b in the MBMA Low Rise Building SystemsManual)


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METALLIC PRODUCTS CONTINUOUS VENTILATORDESIGN EVALUATION AND CERTIFICATION

12" Standard Throat Ventilator: The 24 inch ridge opening results in 2 x 47.88 = 95.76 lbs. per ft. uplift onventilator or 47.88 lbs per fastener which is less than the 50 lbs. per fastener design stress. The ventilatoris less than 2 ft. high resulting in a shear stress of less than 50 lbs./fastener from an equal horizontal windload.

The building design used to create this wind loading exceeds the dimensional parameters of moststandard buildings offered by Metal Building Manufacturers. The location of the vent at the very end of

the building ridge (within the Z edge strip) is not unusual when continuous vents are used for the fullbuilding length. However, a more common arrangement is to place the vents, one in the center of eachbay or to begin the continous run, one ventilator back from the end wall peak.

Evaluation conducted by:_______________________________ May 7, 1997John M. Reynolds, P.E.


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DATE:

TITLE:

PART:3306 Ella Blvd.

Houston, TX 77018(713) 688-6624 1-800-356-7746

E-mail: [email protected]

1/4/99FLASHING

WITHOUT DIE-FORMEDSKIRTS

CONTINUOUS VENT

DRAWING #2CV-01.6/ Rev. 03/00

END CAP OF VENT

DRAIN AT END OF VENT

CAULK HERE

POP RIVET END CAP TODRAIN ASSEMBLY


END CAP OF VENT

DRAIN AT MULTI-UNITSPLICE (WEEP)

CAULK HERE


NOTE:BREAK DRAIN ASSEMBLY TO FOLLOWEXACT SLOPE OF ROOF

END VIEW

SIDE

SKIRT

FASTENER

CLOSURE WITH SEALANT T&B

NOTES:BE SURE WEEPS ARE LEFT OPENFOR 5:12 AND UP ROOF PITCHES,THE TWO BOTTOM RIVETS MUST BEREMOVED BEFORE END SKIRT MAYBE PLACED ON VENT. REPLACE

RIVET WITH SCREW.

RIDGE VENT FLASHINGWITHOUT DIE-FORMED SKIRTS


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DATE:

TITLE:


Houston, TX 77018(713) 688-6624 1-800-356-7746


END OF VENT DETAIL

CONTINUOUS VENTILATOR

DIE-FORMED SKIRT

END SKIRT DETAIL ANDCONTINUOUS VENT SPLICE

END CAP OF VENT

CV-01.7 / Rev. 03/00

END CAP OF VENT

CHANNEL

GUTTERTAPE SEAL

ROOF PANEL

GUTTER SUPPORT

CHANNEL SUPPORT

4/22/97

DIE-FORMEDSKIRT APPLICATION

CONTINUOUS VENT

VFSS-1


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4/22/97

FLAT SKIRTAPPLICATION

CONTINUSOUS VENT

DATE:

TITLE:


Houston, TX 77018(713) 688-6624 1-800-356-7746


END OF VENT DETAIL

CLOSURE (Not by MP)

CONTINUOUS VENTILATOR

FLAT SKIRT

END SKIRT DETAIL ANDCONTINUOUS VENT SPLICE

CLOSURE (Not by MP)

END CAP OF VENT

DRAIN AT END OF VENT

CAULK HERE ROOF PANELMAJOR RIB

POP RIVET ENDCAP TO DRAINASSEMBLY

END CAP OF VENT

CAULK HERE

DRAIN AT MULTI-UNIT SPLICE

CV-01.8 / Rev. 03/00

ROOF PANELMAJOR RIB


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DATE:

TITLE:


Houston, TX 77018(713) 688-6624 1-800-356-7746


1/04/99

INSTALLATION

DETAILS

FLAT SKIRT

CONTINUOUS VENT

CV-01.9 / Rev. 03/00

BIRD SCREEN

DAMPER GUIDE RODBAFFLE

RAIN SHIELDDAMPER

DAMPER SLIDELIFTER ARMSADDLE STRAPPIVOT BRACKET

SKIRTOPERATOR BAR

THROAT

END CAP

PUNCH MARKS

FIELD CUT

6:12

5:12

4:12

3:12

2:12

END CAP DETAILNOTE: DOTTED LINE INDICATES

FIELD CUT FOR 6:12 ROOFSLOPE. OTHER SLOPES

AS NOTED.

BLIND RIVETS (2) REQD

FOAM CLOSURE

END SKIRT

PEAK PANEL

ROOF PITCH LESS THAN 1:12 INSTALLATION:INSTALL END SKIRT FOR 1:12 ROOF SLOPE AND FOAM CLOSURE WITHTAPE SEALER TOP AND BOTTOM.

ROOF PITCH GREATER THAN 5:12 INSTALLATION:REMOVE TWO BOTTOM RIVETS BEFORE INSTALLING END SKIRT.REPLACE THE RIVETS WITH SHEETING SCREWS ONCE END SKIRT ISIN PLACE.

PULL BAR CONNECTION

DETAIL



PIVOT BRACKET & SADDLE STRAPPULL BAR

PULLEY AT FRAME OR END WALL

PULL BAR IN CLOSED POSITION

TO CLOSE DAMPER, PULL CABLE

2" TRAVEL

RAIN SHIELDDAMPER

END CAP


CHAIN CATCH (OPT.)

CHAIN WITH HANDLE

PIVOT BRACKET &SADDLE STRAP

PULL BAR

STANDARD CABLE OPERATION

OPTIONAL PULL CHAIN OPERATION(SINGLE UNITS ONLY)

PULL CHAIN MUST BEREMOVED FOR CONTINUOUSRUN OPERATION



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CONTINUOUS VENT OPERATORSDRAWING VEW-1

DETAIL 3 - TYPE AOPERATOR #624 - HAND PULL-CABLE

35 ft. Plastic Coated Cable2 Cable ClampsI Chain Catch2 Pulleys

DETAIL 3 - TYPE BOPERATOR #634 - HAND PULL-CHAIN

35 ft. Chain2 PulleysI Chain Catch

DETAIL 3 - TYPE COPERATOR #618 - LEVER TYPE

40 ft. Cable2 Pulleys2 Cable ClampsI Lever HandleMounting & Installation Hardware

DETAIL 3 - TYPE DOPERATOR #632 - BOAT WINCH TYPE

60 ft. Cable2 Pulleys

OPERATOR #6161 Lever Handle Mounting Hardware

OPERATOR #619 - EXT.50 ft. Cable3 Eye Bolts

2 Cable Clamps

OPERATOR #634A10 ft. ChainI PulleyI Chain Catch

OPERATOR #634B4 ft. ChainI PulleyI Chain Hook

SINGLE UNIT OPERATOR FORMONOVENT

10 ft. Chain Installed


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3306 Ella Blvd.

Houston, TX 77018(713) 688-6624 1-800-356-7746


DATE:

TITLE:

PART:

OCT. 1, 1983

END WALL

INSTALLATION

CONTINUOUS VENT

VEW-1

OPERATOR A: 3/16" UNCOATED AIRCRAFT CABLE WITH CABLE KEEPER 3 UNITS MAX.

OPERATOR B: NO. 35 ZINC COATED SASH CHAIN WITH CHAIN KEEPER 3 UNITS MAX.OPERATOR C: HAND LEVER TYPE 6 UNITS MAX.

OPERATOR D: BOAT WINCH TYPE 12 UNITS MAX.

CV-01.11 / Rev. 10/83


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OCT. 1, 1983

SIDE WALL

INSTALLATION

CONTINUOUS VENT

VSW-1

3306 Ella Blvd.

Houston, TX 77018(713) 688-6624 1-800-356-7746


DATE:

TITLE:

PART:

OPERATOR A: 3/16" UNCOATED AIRCRAFT CABLE WITH CABLE KEEPER 2 UNITS MAX.

OPERATOR B: NO. 35 ZINC COATED SASH CHAIN WITH CHAIN KEEPER 2 UNITS MAX.

OPERATOR C: HAND LEVER TYPE 5 UNITS MAX.

OPERATOR D: BOAT WINCH TYPE 10 UNITS MAX.

CV-01.12 / Rev. 10/83


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4.4continuous vents

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