1 2 Plywood Decking For Roofs

Comes in standard 4 by 8 foot sheets is strong durable and relatively light.
1 2 plywood decking for roofs. Sheet with varying thickness. Before lumber companies began selling osb the standard choice for sheathing a roof with a 24 inch rafter spacing was 1 2 inch cdx plywood the letters cdx indicate that it is construction grade. Required dimensions of plywood for roofing. Roof decks on homes built before 1970 are often 1 8 fir pre plywood shiplap.
The minimum thickness of plywood used for roofing is 3 8 th of an inch. Foot and with a maximum of spacing of. Until the 1940s exterior grade plywood was not available. The common grade of plywood for roof sheathing is cdx.
Find roofs plywood at lowe s today. 7 16 is adequate but you dont want to have to many people or shingles in one spot. Plywood typically comes in 4 8 ft. It also holds roofing nails well.
Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors. As a quick primer in plywood each side is rated from a to d. A is smooth and knot free while d the lowest quality has missing knots and cracks. Oriented strand board 660663 the home depot.
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. 3 8 is insane walking truss to truss. Since the boards used for shiplap were manufactured here in the pacific northwest it was still cheaper than plywood up through the 1960s. It adds proven performance and durability to new homes room additions and renovations.
Roof sheathing materials plywood. Provides exceptional dimensional stability and stiffness. Oriented strand board is an excellent choice for roof deck wall and subfloor sheathing. 1 2 vs 5 8 roof sheathing that amazing i dont know of one builder here in minnesota that uses 5 8 for roof decking most use 7 16 osb and have seen a few who use 3 8 cdx.
This kind of plywood can be used on roofs with minimal load.