Roof Assemblies and Rooftop Structures - International Code pdf

of the roof deck, and additional slope has been provided to en- sure drainage . .. Asphalt shingles shall have the minimum number of fasteners required by the.

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Decks. Sloping your Deck

Learn why it is important to slope your deck away from the house to shed water off the end of the deck.

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Minimum Slope for an Asphalt Shingle Roof - IKO

Read about the minimum slope requirements for installing asphalt roof. You can measure the roof slope on the bottom side of the roof deck at an easily .

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Proper roof slope and drainage are important to prevent pdf

2 Jul 2012. a design slope minimum of one-fourth unit vertical in 12 units . . and Design Manual for Composite Decks, Form Decks and. Roof Decks.

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HVHZ Chapter 15 - Florida Building Commission

Discontinuous roofing systems include asphalt shingles; concrete, clay or metal tile . .. In new construction the minimum deck slope shall be not less than 1 412.

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Metal panel roof systems for low-slope applications

For roof decks having slopes of 312 (14 degrees) up to 412 (18 degrees), a minimum of two layers of No. 30 asphalt-saturated underlayment should be applied .

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roof assemblies and rooftop structures - California State Fire pdf

Asphalt shingles shall comply with Section 1507.2.7. 1504.2 Wind resistance of clay and concrete tile. Wind loads on. slope roofs (roof slope < 212) in accordance with Section . .. of sufficient length to penetrate the deck a minimum of 3 4.

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Roof Decks - RCABC Roofing Practices Manual

The roof deck must be designed to serve two major functions. A minimum slope of 150 (1 4" in 12") is strongly recommended.. For steep slope roofing (e.g. asphalt shingles), plywood thickness must - as a minimum - conform to the BC .

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Asphalt Shingles Installed On A Slope Below The

1 Jul 2012. Therefore the asphalt manufactures base their warranties around the minimum recommended pitch of 4 in 12. For those who don't understand .

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780 CMR 15.00 - Mass.gov pdf

22 Aug 2008. 1. Roof slope. Asphalt shingles shall only be used on roof slopes of two units vertical in . .. penetrate the deck a minimum of 0.75 inch (19.1.

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How to Calculate Outdoor Deck Pitch Home Guides SF

To avoid puddling water, the deck should have a slight slope. Pitch and slope are two ways of describing the same angle, but from opposite directions. Pitch is a .

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Shingle Application on Low Slopes 212 to 412 - TAB. - pdf

27 May 2011. A roof slope of 212 up to but not including 412 is considered as. up to but not including 4” per foot, a double layer of roof deck protection is required.. roofers may offer this as an option but this practice is not recommended.

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Three -Tab Shingles - CertainTeed pdf

NOTE XT30 IR must be installed over a clean deck (no roof- overs) to obtain the UL. WinterGuard or its equivalent is strongly recommended whenever there is a. Figure 10-4 Use four nails and six spots of asphalt cement on steep slopes.

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Landmark Installation Instructions - CertainTeed pdf

NOTE Landmark Special must be installed over a clean deck (no roof-overs) to obtain. It is strongly recommended . . asphalt roofing cement on steep slopes.

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Technical Data Sheet - CertainTeed pdf

Limitations Use on roofs with slopes greater than 2" per foot.. Product Composition Landmark series shingles are composed of a fiber glass mat base.. Roof Deck Requirements Apply shingles to minimum 3 8" thick plywood, minimum .

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2015 Roofing Policy - Maryland Department of General pdf

Institute of Standards and Technology (NIST), Asphalt Roofing. Manufacturers=. STEEP SLOPE ROOFS with a minimum slope of 2-1 2 inches per foot, may be finished. insulation to deck and install 2 plies of fiberglass felts with hot asphalt.

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residential patio cover plan - City of Hesperia pdf

2) BEAM HEADER TABLES (#2 D.F.; no snow or walkable deck. 1) Due to low pitch on most patio covers, asphalt shingles and tile roof coverings cannot be .

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Roofing Systems WBDG Whole Building Design Guide

10 May 2016. Coal tar pitch is not composed of solvents like asphalt, and so will not. It is recommended that low-slope roofs have a slope of 1 212 (4 percent) . . If roofing materials are to be adhered to a new concrete deck verify that the .

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CPED – Construction Code Services - City of Minneapolis pdf

work using asphalt-based shingles on one-family and two-family residential. The code requires a roof slope (rise divided by run) of 212 or greater for asphalt. as roofing felt or tar paper) provides secondary protection to the roof deck and. and install successive courses with a minimum 19” lap over the previous course.

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Roof Coverings and Best Practices - FEMA.gov pdf

from roof decks and can separate roof decks from framing.. Chapter 5 of SSTD 10 contains requirements for the installation of asphalt shingles and concrete roof . .. The IRC states that the minimum roof slope for metal shingles is 312.

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