Plywood Roof Sheathing Spacing

Or for floor sheathing over supports spaced up to 16 inches o c.

Plywood roof sheathing spacing.

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. And scroll down to see more details on each with installation hints and tips below. A half inch cdx plywood is often used with rafter with 24 inch spacing. Apa recommends a 1 8 inch space between panel edge and end joints.

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 second number is the maximum o c. A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches o c. That can mean costly time consuming callbacks.

The solution 1 8 spacing plywood manufacturers are aware of these problems. Spacing in inches for roof sheathing. In severe cases the sheets of plywood can actually create humps and dips between the roof framing members. The thickness of plywood used for roof decking depends on the roof slope the spacing of.

Panel selection handling and storage table 2. Virtually every one recommends that you your carpenter or builder create a 1 8 inch gap around all edges when installing plywood. A 1 8 inch space between adjacent panel end and edge joints is recommended unless panel manufacturer indicates otherwise. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing.

A structure s roof truss spacing can vary from every 12 to 24 inches. If the wood structural panels are tightly butted there is no room for expansion and buckling can occur. The minimum plywood for roofing plywood is layers of wood. Plywood is made with three or more layers of thin wood glued together with the grain.

This is a popular option because it presents homeowners with functional but affordable roof sheathing. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets. Ventilate the roof according to current building codes step 3. Support spacing when the panel is used for subflooring.

Check the nailing surface is level step 2. Plywood and oriented strand board osb like all wood products will expand or shrink slightly with changes in moisture content. Many factors affect thickness. Check building code requirements for installation of panel edge clips.