3 10d common nails per plank.
Roof sheathing installation overhang.
10d ring shank nails at 4 in.
Draw a full scale mockup and snap a line with fascia in kind to figure out for the sheathing snap line swing the square over to the pitch of the roof in this case it is a.
1x6 or narrower planks 24 in.
At exposed roof overhangs the sheathing must be rated for exposure to the weather.
Roof sheathing thickness maximum overhang length attachment 7 16 1 2 in.
8d ring shank nails at 4 in.
Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.
A tapered piece of sheathing can be cut to fill in at the eave if necessary.
Cut each rafter tail on the chalk line with a circular saw to ensure that every rafter is the same length.
A typical metal roof overhang may be 2 to 4 inches or even less.
Also use more nails and place them closer together to build a stronger roof.
When installing roof sheathing use nails with longer nail shank larger diameter and a larger head than may be required.
Check the nailing surface is level step 2.
How to install roof sheathing 1.
Install edging use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging.
Osb or plywood 18 in.
Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.
When one slope is completely sheathed pop a chalk line down any slope edge as in a hip roof that needs to be cut at an angle.
This indicates the truss tails.
Place corner pieces where panels will meet bends at the edge of the roofing.
Sheath one slope of the roof at a time ripping the top course to the needed width at the ridge.
Measure from the peak of the roof along each rafter on one side of the roof to determine the exact length of each.
Then we re going to use a scrap of 2x4 to space off the square and strike a line there.
Osb or plywood 18 in.
And scroll down to see more details on each with installation hints and tips below.
Cover sheathing with.
The everyday sheathing used on the body of a roof is not rated for weather exposure so when exposed eaves and or rakes occur at the perimeter a different more expensive weather rated grade of plywood or osb must be used.
Position the first piece of plywood.
Properly fasten panels including fastening and spacing hints step 4.
