Roof Sheathing Type

Wall sheathing is primarily a structural material.

Roof sheathing type.

Made up of multiple layers of wood strands compressed at odd angles to each other and bound. Zip system panels install fast and stay flat for a roof that looks as good as it performs. It also holds roofing nails. The most common materials for this are oriented strand board osb or plywood both.

Several factors must be considered when determining appropriate roof sheathing thickness such as the. Use panels rated as exposure 1 or better. Open sheathing may also be chosen for economic reasons but only if used with roofing systems such as metal or tile which have the structural capacity to span between sheathing boards. This type of roof sheathing is used under wood shingles and shakes which usually require ventilation on both sides of the roofing material.

Oriented strand board osb is one of the most popular materials for roof sheathing. Comes in standard 4 by 8 foot sheets is strong durable and relatively light. Oriented strand board osb. Oriented strand board osb or plywood can be used although plywood will provide higher nail head pull through resistance.

Sheathing type typically 15 32 inch or thicker panels are required in high wind areas. Wood structural panel roof sheathing exposed to the underside shall be permitted to be of interior type bonded with exterior glue identified as exposure 1. Roof sheathing may also be constructed of plywood. Osb is lightweight cheap and strong enough to resist bending or breaking should someone be walking on the roof.

Required sheathing thickness for roofing important factors. Wood structural panels when designed to be permanently exposed in outdoor applications shall be of an exterior exposure durability. They must be covered with some type of sheathing or decking before most finishing roof materials can be applied. While structural sheathing increases building stability non structural sheathing improves insulation.

Roof sheathing materials plywood. Planks wood boards plywood osb oriented strand board decks. Roof sheathing is commonly made from materials such as. It is attached to the exterior wall framing and prevents walls from swaying or bending.

There are two main types of wall sheathing.