Sometimes called roofing felt underlayment roofing tar paper or roll roofing this is a layer of protection installed between the roof deck and the roofing shingles.
Pitched roof tar paper.
After this lines should be snapped every 34 as you move up 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.
Drip edges on the eaves any valley liners and all flashing should be installed before the tar paper is laid.
Chalk lines should be snapped 33 5 8 above the eave line.
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.
Roll out the tar paper along the bottom edge of the roof.
It provides extra waterproofing to protect the wood until shingles are installed.