Roof Sheathing Pattern

Many homes have been severely.

Roof sheathing pattern.

The roof ridge by nailing roof sheathing. Ventilate the roof according to current building codes step 3. Holes drilled in roof sheathing for ventilation roof diaphragm action is maintained. Or less roof fastening zone wind main sheathing to gable overhang velocity roof end wall framingg eaves 3 second panel 123 2 3 2 3.

Roof sheathing fastening schedulea b c d e 8d common 0 131 x 2 1 2 inches or ring shank 0 135 x 2 1 2 inches except where noted for exposure b enclosed buildings roof framing spaced 24 inches o c. Common roof sheathing applications and installation recommendations are described in the related publications listed at right. Use shingle underlayment felt conforming to astm d226 type i astm d4869 type i or astm d6757 self adhering polymer modified bitumen sheet underlayment should conform to astm d1970 or check roofing manufacturer s. Cover sheathing with shingle underlayment felt to minimize roof sheathing exposure to weather unless otherwise recommended by sheathing manufacturer.

If any edge swelling occurs prior to roof underlay ment installation all raised joints should be sanded flat. Roof sheathing material must be coordinated with the roofing itself since each type of roofing has special requirements. And scroll down to see more details on each with installation hints and tips below. For information on large panelized roof systems refer to the commercial construction application section.

To provide information about proper roof sheathing installation emphasize its importance in coastal construction and illustrate fastening methods that will enhance the. 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. The actual span capacity depends on roof pitch species live load values and end joint pattern. Ladder framing at gable ends use extra care when attaching a ladder framed exten sion to a gable end.

Check the nailing surface is level step 2. Roof sheathing installation www fema gov technical fact sheet no. At exposed roof overhangs the sheathing must be rated for exposure to the weather. 18 roof sheathing installation home builder s guide to coastal construction page 1 of 3 purpose.

For clarity sheathing nails are not shown ladder framing at gable ends. Cover sheathing with. Properly fasten panels including fastening and spacing hints step 4.