roof how thick is plywood decking

  • The Minimum Plywood for Roofing | Home Guides | SF Gate

    The thickness of plywood used for roof decking depends on the roof slope, the spacing of rafters and the weight of other material to be put over the decking,...

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  • Type of Plywood Used on Roofing | Home Guides | SF Gate

    Roof sheathing is typically about 1/2 inch thick. Builders love plywood for its water resistance, structural stability and low cost. They also love oriented strand...

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  • Plywood vs. OSB: Which is Better? - Parr Lumber

    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, which can ... While a sheet of plywood might be 5 to 7 plies thick, a sheet of OSB is made...

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  • Mastering Roof Inspections: Asphalt Composition Shingles, Part 38 ...

    When discussing roofs, the substrate can be the wood roof sheathing or, if new ... The typical thickness of roof sheathing is about 7/16-inch, which is just under...

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  • Required Sheathing Thickness for Roofing | eHow

    Typical types of wood used for roof sheathing are oriented strand board, known as OSB, and plywood, the most popular being OSB. Sheets of 7/16-inch thick,...

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  • Type of Plywood Used on Roofing | eHow

    Traditional plywood is the most expensive sheathing material for roof ... Fiberboard must be nearly twice as thick as OSB or plywood to cover the same span.

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  • APA: Engineered Wood Construction Guide - Roof Construction

    Engineered wood products are a good choice for the environment. ..... PLYWOOD THICKNESS AND MAXIMUM SPANS FOR ROOF DECKS UNDER SPECIAL...

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  • Which Thickness of Plywood is for a Roof?

    Exterior grade plywood decking can be used to deck a roof, directly over rafters. It is typically nailed down. The thickness is selected by the spacing of your roof...

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  • Deck Requirements Wood - Roof Repairs, Roofing Contractors ...

    Plywood - If you have a plywood roof deck, make sure that you have at least 15/ 32" (or ½") plywood thickness if the rafters are set at sixteen inches (16") on...

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  • Roof Sheathing - Building Construction & Finishing

    Plywood is one of the most common roof sheathing materials in use today. It comes in 4- by 8-foot sheets in a variety of thicknesses, grades, and qualities.

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