How Far Over Edge For Roof Plywood

One of the most important factors when selecting the plywood for your roof is how thick each piece should be.

How far over edge for roof plywood.

Too little can allow water to seep into rake or fascia boards. In my experience with siding this is one of the most common mistakes. Measure from the edge of the plywood outside of the wall over to whatever the overhang will be and square a line up to indicate the end of the truss tail. If not whatever you decide to use to cover the sub fascia aluminum cap plowed cedar hardi trim board ect will hit on the plywood under the drip edge.

The edge of the shingles should hang over a roof between an inch and an inch and a half or between a half inch and three quarters of an inch if drip edge flashing is installed. The answer depends mostly on how far apart the rafters are and the roof loads which vary based on the pitch of your roof. Spacer type panel edge clips are available from some manufacturers. Yes the plywood should be flush of slightly shy of the outside of the sub fascia board.

Use a 10d box 0 128 inch by 3 inch nail as a spacer to gauge 1 8 inch edge and end spacing between panels. Position the first piece of plywood or oriented strand board sheathing on the bottom edge of the rafter tails at one end of the roof. Edge clip requirements depend on the relationship of the panel span rating to the actual distance between roof framing. Add an inch and a half for subfascia strike a line.

Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and. Too much overhang and the shingles could blow off in high winds. Add the thickness of the true fascia 15 16 in in this case.