Flat Roof Plywood Sheathing

Sheets of 7 16 inch thick with no edge support can be used in an area where the snow load is 30 pounds per square foot.

Flat roof plywood sheathing.

One side is usually better quality than the other c in this case. Zip system sheathing and tape provides a water resistant durable underlayment for many finished roof coverings including metal tile and asphalt shingles fiberglass shingles and cedar shingles. A is smooth and knot free while d the lowest quality has missing knots and cracks. A 4 8 sheet of plywood is 32 ft 2.

15 32 cat ps1 09 square structural douglas fir sheathing application as 4 x 8. Severe weather 1 2 in common southern yellow pine plywood sheathing application as 4 x 8. With edge support and the same snow load 3 8 inch osb can be used. For pricing and availability.

Zip system panels install fast and stay flat for a roof that looks as good as it performs. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. 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. Roof sheathing or decking is one of those elements.

It adds proven performance and durability to new homes room additions and renovations. Plywood sheathing is ideal for residential and light plywood sheathing is ideal for residential and light construction. For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. As a quick primer in plywood each side is rated from a to d.

Installing sheathing on a flat roof is much easier than working on a peaked roof. The sheathing is the base you lay over the rafters that holds the roofing felt and shingles. So dividing the area of the roof by 32 will give you the number of sheets needed. That s considered to be the minimum.

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. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. The common grade of plywood for roof sheathing is cdx.