Chalk lines should be snapped 33 5 8 above the eave line.
Pitched roof tar paper.
It also offers fire resistance required for home construction.
Begin your first row of tar paper with the bottom of the tar paper slightly hanging over the edge of the roof.
It provides extra waterproofing to protect the wood until shingles are installed.
Roofing felt also known as tar paper provides a protective underlayment over the roof deck and beneath the shingles.
Drip edges on the eaves any valley liners and all flashing should be installed before the tar paper is laid.
Roll out the tar paper along the bottom edge of the roof.
In order to know the appropriate amount of roofing felt to use the roof pitch will need to be calculated first.
Cut it to fit your roof if.
After this lines should be snapped every 34 as you move up the roof.