minimum slope for composition deck

Chapter 15 Roof Assemblies and Rooftop Structures

of the roof deck, and additional slope has been provided to . Asphalt shingles shall comply with Section 1507.2.7. 1505.2 Wind resistance of clay and concrete tile. Wind loads .. of sufficient length to penetrate the deck a minimum of 3/4.

IKO Dynasty Application INstructions

The installation of asphalt shingles on dimensional lumber (including shiplap/board decks) is not recommended for areas where the roof slope is 6" per foot down to 4" per foot, it is strongly recommended to cover the remainder of the deck 

Asphalt Shingles - City of Sioux Falls

Sheathing requirements. Asphalt shingles shall be fastened to solidly sheathed decks. slope. Asphalt shingles shall only be used on roof slopes of 2 penetrate through the roofing materials and a minimum of 3/4 inch into the roof sheathing.

Seattle SDCI – Seattle Building Code, Chapter 15 - Seattle.gov

roof slope or direction and around roof openings. Where . 1504.5 Edge securement for low-slope roofs. Low-slope built-up, modified bitumen and single-ply roof system metal .. and of sufficient length to penetrate the deck a minimum.

Metal panel roof systems for low-slope applications Everybody

Metal panel roof system description; Roof deck; Underlayment; Vapor retarders, insulation and ventilation; Material standards for roof decks having slopes of 3:12 (14 degrees) up to 4:12 (18 degrees), a minimum of two layers of No.

Re-Roof - City of Santa Monica

Two inspections are the minimum. Either tear off If the original roof deck consists of spaced sheathing, verify the existing roof covering was removed composition shingles shall be installed over solid sheathing and slope shall be minimum 

PABCO Premier Professional Directions for Application

15 Mar 2017 The step-by-step application instructions below apply to standard slope/inclines between 4" per foot and 21" per foot. The minimum deck thickness must be either 3/8” plywood or 7/16” OSB type sheathing, conforming to the manufacturer's recommended application procedure for asphalt shingles.

Minimum Roof Pitch for a Covered Porch Home Guides SF Gate

Determine the minimum slope of the roof based on the roofing material. The minimum pitch for shingles is 1:6, which is equivalent to 4 inches rise to 24 inches run. The minimum pitch for a standing seam metal roof is 1:4, or 3 inches rise to 12 

Minimum Roof Pitch for Massachusetts eHow

for asphalt shingles, which are popular because of their ease of installation, durability and low cost, the minimum pitch is 2:12 on a roof deck that must be solidly sheathed. slopes from 2:12 to 4:12 need double underlayment for maximum 

Residential Re-Roofing Checklist - City of Vacaville

deck. R908.2. • Verify missing, rusted or damaged flashing and counter flashing, vent, caps and metal edging is installed or replaced R905.2. • composition shingles shall be installed over solid sheathing and slope shall be minimum 2/12,.

Asphalt Shingles Installed On A Slope Below The Recommended

1 Jul 2012 Asphalt composition shingles are designed to be installed on roof slopes greater than a 4 in 12 pitch. Therefore the asphalt manufactures base their warranties around the minimum recommended pitch of 4 in 12. for those 

roof assemblies and rooftop structures - California State Fire Marshal

roof slope or direction and around roof openings. Where 1504.5 Edge securement for low-slope roofs. Low-slope built-up, modified bitumen and single-ply roof system metal .. of sufficient length to penetrate the deck a minimum of 3/4.

ROOF OPTIONS FOR LOW PITCH (1.5 TO 12) - Metal Roofing

MY PITCH IS LESS THAN 2' TO 12' AND IT'S CONSIDERED A FLAT ROOF. METAL CANNOT BE INSTALLED. Alex, The easy solution to your situation, is to tear off the existing composition roof down to the deck. Install a 40 mil ice & water 

Three -Tab Shingles - CertainTeed

WinterGuard or its equivalent is strongly recommended whenever there is STEEP slope. Use four nails and six spots of asphalt roofing cement* for every full shingle (Figure 10-4). Asphalt roofing cement . Roof deck. Metal. Drip. Edge. Remove these portions. 4''. (100 mm). End Lap. 2'' (50 mm) Side Lap. Underlayment.

CPED – Construction Code Services - Guest Home Page

The code requires a roof slope (rise divided by run) of 2:12 or greater for asphalt shingles. However, asphalt roofs Underlayment. Underlayment (also known as roofing felt or tar paper) provides secondary protection to the roof deck and.

ROOF ASSEMBLIES >

exposed concrete roof deck, ferrous or copper shingles or sheets, and metal per shall be located as determined by the roof slope and con- tributing roof area. . flashing shall be corrosion-resistant metal of minimum nominal 0.019-inch (0.5 

Chapter 15_Roof Assemblies and Rooftop Structures

of the roof deck, and additional slope has been provided to ter 16 and Sections 1504.2, 1504.3 and 1504.4. 1504.1.1 Wind resistance of asphalt shingles. Asphalt shingles shall be .. sion-resistant metal of minimum nominal 0.019-inch.

Roof Coverings and Best Practices - FEMA.gov

from roof decks and can tear roof decks from framing. In some of those buildings, structural roof damage itself was quite minimal yet the .. slope requirements as metal shingles and can be used on roof decks with slopes as low as 3:12.

Minimum Slope for an Asphalt Shingle Roof - IKO Building

Read about the minimum slope requirements for installing asphalt roof shingles on a home's roof. You can measure the roof slope on the bottom side of the roof deck at an easily accessible point such as the rake, using a tape measure and 

2015 Roofing Policy - Maryland Department of General Services

American Institute of Steel Construction Manual (AISC), Sheet Metal STEEP slope ROOFS with a minimum slope of 2-1/2 inches per to create slope. 3.2 PRIOR TO PLACEMENT OF INSULATION and the roofing system, all low slope roof decks shall have: insulation to deck and install 2 plies of fiberglass felts.

Seattle DPD - 2012 Seattle Building Code, Chapter 15 - Seattle.gov

fastened to solidly sheathed decks. 1507.2.2 slope. Asphalt shingles shall only be used on roof slopes of two units vertical in 12 units horizontal (17- percent slope) or greater. for roof slopes from two units. TABLE 1505.1((a,))b. minimum 

Flat, Low Slope Roofing & TPO- Inland Roofing & Supply

The important number to remember is 3/12. This is the minimum pitch or slope a roofing deck can be in order to install composition roofing shingles on it. This means the roof needs to have a slope going down (to drain water off it) of at least 

Roof Assemblies and Rooftop Structures - International Code Council

of the roof deck, and additional slope has been provided to en- sure drainage of a roof covering and roof deck or a single component serving as both the roof .. Asphalt shingles shall have the minimum number of fasteners required by the.

Stramit Roof Slope Design Guide

minimum slope. It is essential that the minimum fall of roof is maintained to ensure that water drains away. This Metal roof sheeting has a relatively smooth surface . minimum roof slope. (degrees) for sheeting/ decking. Maximum roof run length (m) at minimum slope. 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150.

AS Details:E2.7.2 (Low Slope Shingle Application) - RCABC

(6) Protrusions: Curbs and skylights must be flashed with underlayment so as to shed water, with minimum 125mm (5") up for fire-rated stacks or hot pipe protrusions, strip in secondary metal deck flashing before installing rated stack / pipe 

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