Plywood Used For Roof Decking

It adds proven performance and durability to new homes room additions and renovations.

Plywood used for roof decking. Plywood sheathing is ideal for residential and light plywood sheathing is ideal for residential and light construction and every piece meets the highest grading standards for strength and appearance. This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load. It comes in 4 by 8 foot panels as does plywood and is commonly used interchangeably with plywood such as for roof decking. That s considered to be the minimum.

Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof design. When used for roofing plywood panels are covered and protected by a variety of building materials that keep the elements at bay including roof felt underlayment flashing and shingles. It s less expensive than plywood and available virtually everywhere. Plywood sheathing delivers outstanding rigidity strength and versatility and is an excellent choice for.

Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. That s considered to be the minimum. The materials can range anywhere from asphalt wood metal clay or even glass. Wood shingle are expensive so when these roofs need to be torn off and replaced it is cheaper to resheath the entire roof and go over it.

On more modern homes roof decks are more often seen with laminated panels of plywood or non laminated oriented strand boards osb. 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 as well as the design load the. It s constructed with waterproof glue and performs best when only semi exposed to the elements as it is when covered with siding or roofing. The materials used may vary depending on the location of the building to the shape of the roof and even the surrounding climate.

Cdx plywood is a construction grade type of plywood that is designed for exposure to the elements. Oriented strand board osb is an engineered plywood substitute that many builders use for sheathing and roof decking. In the first half of the 20th century roofs in missouri were built with wood shingles over planks spaced about 1 apart. It is a little cheaper than plywood which is why it is popular on housing tracts as a cost saving measure.

Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood.