Roof Sheathing Type

Planks wood boards plywood osb oriented strand board decks.

Roof sheathing type.

There are two main types of wall sheathing. Oriented strand board osb or plywood can be used although plywood will provide higher nail head pull through resistance. Zip system panels install fast and stay flat for a roof that looks as good as it performs. This type of roof sheathing is used under wood shingles and shakes which usually require ventilation on both sides of the roofing material.

Sheathing type typically 15 32 inch or thicker panels are required in high wind areas. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood. The most common materials for this are oriented strand board osb or plywood both. Use panels rated as exposure 1 or better.

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. It is attached to the exterior wall framing and prevents walls from swaying or bending. Osb is lightweight cheap and strong enough to resist bending or breaking should someone be walking on the roof. Roof sheathing materials plywood.

Made up of multiple layers of wood strands compressed at odd angles to each other and bound. It also holds roofing nails. 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. Plywood is a bit more expensive than osb but is usually stronger.

Several factors must be considered when determining appropriate roof sheathing thickness such as the. Comes in standard 4 by 8 foot sheets is strong durable and relatively light. 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.

Oriented strand board osb. Roof sheathing may also be constructed of plywood. Wall sheathing is primarily a structural material. Oriented strand board osb is one of the most popular materials for roof sheathing.

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.