Roof Sheathing Boards

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.

Roof sheathing boards.

Open sheathing may also be chosen for economic reasons but only if used with roofing systems such as metal or tile which. 1 by 8 boards commonly used on the eave and rake overhangs when soffits will not be installed rather than as roof sheathing. Benefits of densdeck roof board include. Generally you ll need to place two nails at each location where it makes contact with a roof truss.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. For pricing and availability. The boards are more attractive when viewed from underneath than rough plywood.

For pricing and availability. Open sheathing also called skip sheathing is composed of boards spaced apart. The inch thick boards extend from the eaves just past the exterior walls where they butt up against the plywood roof sheathing. Shown to withstand delamination deterioration warping and jobsite damage more effectively than other roofing membrane substrates such as paper faced gypsum board fiber board and perlite insulation.

With edge support and the same snow load 3 8 inch osb can be used. For slats featuring face widths of 12 inches you will space three nails evenly apart about every 3 inches. This type of roof sheathing is used under wood shingles and shakes which usually require ventilation on both sides of the roofing material.