This overhang will ensure water will not enter underneath the paper getting trapped on top of the wood roof planks.
How to lay felt paper on roof.
Climb onto the roof and lay a second strip of tar paper above the first strip overlapping it by about 5.
Cover the edges of the roof with strips of felt before laying out the final layer.
Apply another layer of adhesive to the top for maximum waterproofing.
Step 4 over the peak.
You can cover the surface of the felt with gravel for added strength.
A third layer of felt needs to be placed.
The roofing felt should be applied in layers that overlap.
Step 3 overhang paper.
Start at the bottom of the roofline and work up so any water that gets through the roofing material will shed down the tar paper and will not go under it.
You will follow the same process as in step 2 for the last layer.
Add only enough staples to hold the paper in place to maintain its waterproof integrity.
Allow for a inch overhang of paper down each side of the roof when unrolling the paper.
Start the roof felt at one bottom corner of the roof.