Sheathing Roof Trusses

End trusses close in the end of a building and provide a nailing surface for the upper end wall or rigid sheathing.

Sheathing roof trusses.

Rafters run from the peak of the roof. To stabilize the rafters support the roofing material and hold the entire roof together roof sheathing is installed. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. Most houses contain a weak link in the connection of the roof sheathing to the rafters or roof trusses making them vulnerable to loss of roof sheathing in severe winds but solutions to this.

These trusses are positioned on the top plate of the endwall so the entire bottom chord is supported by the wall. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. Any weight imposed on the end truss is directly transferred to the endwall which transfers the weight to the. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.

Roof sheathing or decking is one of those elements. The roof s sheathing helps to keep the roof trusses or rafters properly spaced and is the strength that holds. Start the sheathing at the eaves and work your way up to 1 inch from the peak. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.

Install sheathing perpendicular to roof trusses one slope at a time. There are a few different terms for roof sheathing such as roof decking but sheathing is one of the more popular terms. A structure s roof truss spacing can vary from every 12 to 24 inches. Roof sheathing is a lot more than just flat panels onto which shingles are attached.

The trusses and beams of the roof give the roof its initial pitch and structure and then the sheathing is applied so the actual underlayment and roof covering can be applied. Nails size 8b should be installed every 6 inches on edges and every 12 inches in the center area.