Flat Roof Plywood Sheathing

Roof sheathing or decking is one of those elements.

Flat roof plywood sheathing.

In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. 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. It will be a good idea to get an extra few sheets of plywood when ordering to allow for waste and off cuts.

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. One side is usually better quality than the other c in this case. As a quick primer in plywood each side is rated from a to d. So dividing the area of the roof by 32 will give you the number of sheets needed.

For pricing and availability. 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. The common grade of plywood for roof sheathing is cdx. 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. That s considered to be the minimum. A is smooth and knot free while d the lowest quality has missing knots and cracks. That s considered to be the minimum.

Plywood sheathing is ideal for residential and light plywood sheathing is ideal for residential and light construction. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick.

Zip system panels install fast and stay flat for a roof that looks as good as it performs. Severe weather 1 2 in common southern yellow pine plywood sheathing application as 4 x 8. It adds proven performance and durability to new homes room additions and renovations. 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.