Plywood Roof Sheathing Spacing

A 1 8 inch space between adjacent panel end and edge joints is recommended unless panel manufacturer indicates otherwise.

Plywood roof sheathing spacing. And scroll down to see more details on each with installation hints and tips below. Virtually every one recommends that you your carpenter or builder create a 1 8 inch gap around all edges when installing plywood. The solution 1 8 spacing plywood manufacturers are aware of these problems. The thickness of plywood used for roof decking depends on the roof slope the spacing of.

In severe cases the sheets of plywood can actually create humps and dips between the roof framing members. Check the nailing surface is level step 2. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets. Cover sheathing with.

Many factors affect thickness. Apa recommends a 1 8 inch space between panel edge and end joints. Plywood is made with three or more layers of thin wood glued together with the grain. Check building code requirements for installation of panel edge clips.

Support spacing when the panel is used for subflooring. This is a popular option because it presents homeowners with functional but affordable roof sheathing. 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. Ventilate the roof according to current building codes step 3.

Properly fasten panels including fastening and spacing hints step 4. The minimum plywood for roofing plywood is layers of wood. Plywood and oriented strand board osb like all wood products will expand or shrink slightly with changes in moisture content. If the wood structural panels are tightly butted there is no room for expansion and buckling can occur.

Panel selection handling and storage table 2. 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. 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.

Or for floor sheathing over supports spaced up to 16 inches o c. 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. That can mean costly time consuming callbacks.