Panel selection handling and storage table 2.
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.
This is a popular option because it presents homeowners with functional but affordable roof sheathing.
Support spacing when the panel is used for subflooring.
Virtually every one recommends that you your carpenter or builder create a 1 8 inch gap around all edges when installing plywood.
Properly fasten panels including fastening and spacing hints step 4.
Check building code requirements for installation of panel edge clips.
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.
Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.
The second number is the maximum o c.
If the wood structural panels are tightly butted there is no room for expansion and buckling can occur.
Apa recommends a 1 8 inch space between panel edge and end joints.
In severe cases the sheets of plywood can actually create humps and dips between the roof framing members.
Spacing in inches for roof sheathing.
For improved performance consider thicker roof sheathing panels panel edge clips or panels with tongue and groove edges.
A structure s roof truss spacing can vary from every 12 to 24 inches.
The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing.
Plywood is made with three or more layers of thin wood glued together with the grain.
The solution 1 8 spacing plywood manufacturers are aware of these problems.
A half inch cdx plywood is often used with rafter with 24 inch spacing.
Many factors affect thickness.
That can mean costly time consuming callbacks.
A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches o c.
Check the nailing surface is level step 2.
The thickness of plywood used for roof decking depends on the roof slope the spacing of.
Or for floor sheathing over supports spaced up to 16 inches o c.
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.
Ventilate the roof according to current building codes step 3.
