Roof Sheathing Type

Roof sheathing may also be constructed of plywood.

Roof sheathing type.

There are two main types of wall sheathing. 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. Plywood is a bit more expensive than osb but is usually stronger. Comes in standard 4 by 8 foot sheets is strong durable and relatively light.

Roof sheathing is commonly made from materials such as. 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. Several factors must be considered when determining appropriate roof sheathing thickness such as the. This type of roof sheathing is used under wood shingles and shakes which usually require ventilation on both sides of the roofing material.

It is attached to the exterior wall framing and prevents walls from swaying or bending. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood. Wood structural panels when designed to be permanently exposed in outdoor applications shall be of an exterior exposure durability. Wall sheathing is primarily a structural material.

Oriented strand board osb is one of the most popular materials for roof sheathing. It also holds roofing nails. Oriented strand board osb or plywood can be used although plywood will provide higher nail head pull through resistance. Oriented strand board osb.

Planks wood boards plywood osb oriented strand board decks. While structural sheathing increases building stability non structural sheathing improves insulation. Use panels rated as exposure 1 or better. They must be covered with some type of sheathing or decking before most finishing roof materials can be applied.

The most common materials for this are oriented strand board osb or plywood both. Roof sheathing materials plywood. 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. Sheathing type typically 15 32 inch or thicker panels are required in high wind areas.

Made up of multiple layers of wood strands compressed at odd angles to each other and bound.