How Much Plywood In A 22 Square Roof

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.

How much plywood in a 22 square roof. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet. Once the area is known divide by the area of a 4 8 sheet to find how much sheathing is needed. This is simply 100 square feet of roof. The most common uses for plywood include support for floors walls roofs and garages in residential construction.

This basically calculates the number of sheets needed for a gable roof. For example if the area to be covered in plywood is 800 ft 2 then 25 sheets of plywood will be needed to cover it. For instance if the roof is 1550 square feet then it is 16 squares. If your roof area is 1 600 square feet 1 600 divided by 32 will mean you need about 50 sheets to cover the roof.

Although roofing projects are estimated and sold by the square. To find the amount of plywood needed to cover a roof start by finding the area of the roof. No calculator can tell how much waste will be on each run plywood. For a 2 400 square foot roof you can expect to spend 792 to 1 704.

There is a range of different solutions for roofing underlay some are tacked or stapled while others are self adhesive ranging in price from 0 18 to 0 49 per square foot for materials only. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood. Sometimes there is no waste such as on a run 32 long. For example if your roof is 3 000 square feet divide 3 000 by 32.

This comes out to about 94 sheets of 4 x 8 plywood. Add an additional 10 for waste and mistakes. The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size. It will take four sheets.

How to estimate roofing materials. Multiply the length of the roof in feet by the width of the roof in feet to find the area of the roof in square feet. One sheet 32 ft. That is dependent on the lay out and where it ends with the plywood.

Find the area of a roof. Divide the roof s area by 32 32 is the total area of one sheet of plywood to find this figure. Labor costs vary based on the type of underlay at 0 15 to 0 22 per square foot. Add 10 percent.

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. A run 31 long will also take four sheets with a 12 piece left a remainder. The square footage of a hip roof area is identical to the square footage of a gable roof of the same measurements. A 4 8 sheet of plywood is 32 ft 2.

Divide by the total square footage by the square footage of a sheet of plywood to find the number of sheets required to cover the space.