Plywood Roof Sheathing Spacing

How to correctly install plywood or osb roof sheathing.

Plywood roof sheathing spacing.

Not only that the spacing of nails on the edges of a panel are frequently different from the spacing within the panel. A panel marked 32 16 may be used for roof. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets. The span rating on sheathing span panels appears as two numbers separated by a slash e g 32 16 or 48 24.

Panel spacing is an apa recommendation to provide installers with a means of minimizing the potential for panel buckling. A half inch cdx plywood is often used with rafter with 24 inch spacing. It adds proven performance and durability to new homes room additions and renovations. Spacer type panel edge clips are available from some manufacturers.

Spacer type panel edge clips may also be used for roof sheathing applications. Not all plywood applications require the same size nail or spacing between nails. Wind forces and plywood. This is a popular option because it presents homeowners with functional but affordable roof sheathing.

Plywood sheathing is ideal for residential and light plywood sheathing is ideal for residential and light construction and every piece meets the highest grading standards for strength and appearance. Use a 10d box 0 128 inch by 3 inch nail as a spacer to gauge 1 8 inch edge and end spacing between panels. Support spacing when the panel is used for subflooring. If your roof carries a heavier load like if there s less pitch and or it snows in your area a roofer may recommend the use of the inch variety.

The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. A structure s roof truss spacing can vary from every 12 to 24 inches. The first number is the maximum on center o c support spacing in inches for roof sheathing.

Plywood clips also referred to as h clips or panel edge clips are small metal brackets placed between the unsupported edges of plywood sheathing to effectively reduce the support spacing and stiffen the plywood. Some manufacturers may. The second number is the maximum o c. You must check before you nail.

It will support roof loads for most situations and is the standard for most roof applications. Use a 10d box nail to gauge 1 8 inch spacing between panels. However it is not a requirement.