Plywood Roof Sheathing Spacing

That can mean costly time consuming callbacks.

Plywood roof sheathing spacing.

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. Apa recommends a 1 8 inch space between panel edge and end joints. The thickness of plywood used for roof decking depends on the roof slope the spacing of. Virtually every one recommends that you your carpenter or builder create a 1 8 inch gap around all edges when installing plywood.

Plywood is made with three or more layers of thin wood glued together with the grain. And scroll down to see more details on each with installation hints and tips below. Or for floor sheathing over supports spaced up to 16 inches o c. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.

This is a popular option because it presents homeowners with functional but affordable roof sheathing. Cover sheathing with. 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. Spacing in inches for roof sheathing.

A structure s roof truss spacing can vary from every 12 to 24 inches. Panel selection handling and storage table 2. Plywood and oriented strand board osb like all wood products will expand or shrink slightly with changes in moisture content. A half inch cdx plywood is often used with rafter with 24 inch spacing.

The second number is the maximum o c. Ventilate the roof according to current building codes step 3. Support spacing when the panel is used for subflooring. Check building code requirements for installation of panel edge clips.

Properly fasten panels including fastening and spacing hints step 4. For improved performance consider thicker roof sheathing panels panel edge clips or panels with tongue and groove edges. In severe cases the sheets of plywood can actually create humps and dips between the roof framing members. 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. The solution 1 8 spacing plywood manufacturers are aware of these problems. Check the nailing surface is level step 2. A 1 8 inch space between adjacent panel end and edge joints is recommended unless panel manufacturer indicates otherwise.