Installation of structural exterior wall sheathing occurs after the structure’s walls are framed, secured to the slab, plumbed, and braced. Structural exterior wall sheathing strengthens the wall system by tying the framing studs together, which makes the walls resistant to twisting and bending.
Sheathing also provides a surface for application of materials, like siding, and helps shield a building from rain, snow, wind, etc. Installing structural exterior wall sheathing involves first preparation then application.
Selecting the best type of sheathing for the project is the first step of installing structural exterior wall sheathing. There are several common structural exterior sheathings.
To calculate the number of sheathing boards needed for a project, measure the length and height of each wall. For each wall, multiply the width and height of the wall for total exterior square feet for that specific wall. Divide the exterior square feet of that wall by the square feet of a single sheet of sheathing. Repeat for each wall.
For example, a wall is 15 feet long and 10 feet wide. The sheathing board is 4 feet by 8 feet.
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