how thick is the plywood decking on roof

2.5 Application of panels in flat roof decking - Wood Panel Industries .

The selection of wood-based panels for roof decking depends on a .. thicknesses of plywood, particleboard and OSB for different maximum spans. These are.

ROOF SHEATHING

roofing material, but also the entire wood deck or sheathing beneath the roofing. In older garages, the . A rough (not sanded smooth) exterior grade plywood (CDX) makes an excellent replacement deck. . thickness of the old deck. For any.

Reroofing on Roofs With or Without Solar Energy Systems 03-14-16 .

14 Mar 2016 . 1/2 inch plywood deck may be fastened over wood shingles as noted in Item 6 . width boards or 1/2 inch (minimum) thickness plywood may be.

Flat Roof Deck Types & Design Guides - Bauder

Our Design Guides help you pick the best Deck to suit your project. . Plywood used for roof decks is generally 18mm thick, but it is possible to specify a.

residential roofing - cloudfront.net

9 Jan 1998 . This decking provides two properties - one, it helps brace the framing in a . 5/8" thick plywood with proper attachment to the rafters/trusses.

The Ontario Building Code | Thickness or Rating

(1) The thickness or rating of roof sheathing on a flat roof used as a walking deck shall conform to either Table 9.23.14.5. . Plywood and OSB, O-2 Grade.

Guidance Flat Roof Deck - BuildingRegs4Plans

Plywood for a roof deck should be of marine grade and suitable for external use to BS . a minimum thickness of 18mm (these will be able to span up to 600mm).

Mastering Roof Inspections: Asphalt Composition Shingles, Part 38 .

. a more specific term used to describe boards or panels that form the roof deck. . Over the years, plywood replaced boards, and oriented strand board, or OSB, . The typical thickness of roof sheathing is about 7/16-inch, which is just under.

Easy-Ply Roof Deck - Homasote

Easy-Ply Roof Deck. Homasote EasyPly Roof Decking is designed for use as a structural, load-bearing . Panel Thickness, Max. rafter spacing for live loads of:*.

Wood Roof Deck Requirements - Roof Repairs, Roofing Contractors .

Plywood - If you have a plywood roof deck, make sure that you have at least 15/32" (or ?") plywood thickness if the rafters are set at sixteen inches (16") on.

Is 1/2" plywood standard and appropriate for a roof replacement .

Occasionally I have seen 3/8" plywood on a roof. It is certainly not preferred by professionals interested in quality. Mixing thicknesses is not.

Required Sheathing Thickness for Roofing | Hunker

6 Dec 2010 . Sheathing should be a minimum of 19/32-inch thick. . of wood used for roof sheathing are oriented strand board, known as OSB, and plywood,.

What thickness of plywood is required when re-roofing your .

If plywood of inadequate thickness was used on your roof, a complete roof . re-roof, though, use what is there unless you are replacing all of the decking as well.

Roof deck materials to ensure a stable roof surface | IKO

4 Oct 2016 . The type, grade, thickness and installation of materials used for roof decks should conform to the requirements of the . Plywood roof deck.

Roof Sheathing Materials | Roof Decking Guide - ImproveNet

The ?-inch thick boards extend from the eaves just past the exterior walls, where they butt up against the plywood roof sheathing. Roof material then covers all.

Press Releases | Who's On Deck: Plywood Or OSB? | Atlas Roofing

28 May 2016 . Both OSB and plywood panels can cut and installed on a roof using . While a sheet of plywood might be 5 to 7 plies thick, a sheet of OSB is.

Plywood vs. OSB: Which is Better? – Parr Lumber

3 Oct 2013 . Far too often I see OSB “sag” between the trusses making your roof look wavy. . Over the years I have seen claims for plywood decking delaminating, . While a sheet of plywood might be 5 to 7 plies thick, a sheet of OSB is.

Do I need to put ply over shiplap before installing new composition .

23 Apr 2016 . I am replacing my composite roof with a new composite roof shingle . Do NOT fasten shingles directly to insulation or insulated deck . Except that LA Department of building and safety will not accept 3/8" thick plywood, but.