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.

Plywood roof sheathing spacing.

Plywood and oriented strand board osb like all wood products will expand or shrink slightly with changes in moisture content. A 1 8 inch space between adjacent panel end and edge joints is recommended unless panel manufacturer indicates otherwise. That can mean costly time consuming callbacks. 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.

For improved performance consider thicker roof sheathing panels panel edge clips or panels with tongue and groove edges. The second number is the maximum o c. Or for floor sheathing over supports spaced up to 16 inches o c. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing.

Ventilate the roof according to current building codes step 3. This is a popular option because it presents homeowners with functional but affordable roof sheathing. The thickness of plywood used for roof decking depends on the roof slope the spacing of. Apa recommends a 1 8 inch space between panel edge and end joints.

Panel selection handling and storage table 2. Support spacing when the panel is used for subflooring. Spacing in inches for roof sheathing. Properly fasten panels including fastening and spacing hints step 4.

A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches o c. Check building code requirements for installation of panel edge clips. Check the nailing surface is level step 2. Cover sheathing with.

A structure s roof truss spacing can vary from every 12 to 24 inches. The minimum plywood for roofing plywood is layers of wood. And scroll down to see more details on each with installation hints and tips below. Many factors affect thickness.

If the wood structural panels are tightly butted there is no room for expansion and buckling can occur. The solution 1 8 spacing plywood manufacturers are aware of these problems. In severe cases the sheets of plywood can actually create humps and dips between the roof framing members. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.