Flat Roof Plywood

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof.

Flat roof plywood.

Osb is made of small and fairly rectangular shaped wood chips from small resinous trees which are bonded into a panel form with wax and synthetic resin. Especially in relation to osb or plywood use for roofs walls floors. Of course you don t need to live in a modern house to deal with a flat roof. Just enough slope to drain water but also flat enough to be a problem if not constructed properly.

Traditionally 1 2 in cdx plywood was common choice with 24 in rafter spacing. Rafters run from the peak of the roof. Plywood on the other hand is made with thin sheets of wood that have been cut from a spinning log then glued together. Different material options types of roof plywood.

This minimum wouldn t work if you have a flat roof. Most roofs are spaced at least 20 inches apart. However heavier roof loads may require the use of 3 4 in cdx plywood for roof sheathing. 1 2 or 3 4 inch plywood for roof sheathing.

Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood. Roofs with less pitch often carry heavier loads including snow and ice accumulations in the winter. For this you can either go for a half inch or 5 8 inch. In this case you can t use a 3 8 inch thick sheet.

Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. Yes there are several different material options and types of roof plywood. More product details close. A roof that lays practically flat will have a much heavier load than a steeper roof that allows rain snow and ice to roll right off.

Plywood sheathing delivers outstanding rigidity strength and versatility and is an excellent choice for light frame wall and roof assemblies in weather protected applications. Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape.