Begin your first row of tar paper with the bottom of the tar paper slightly hanging over the edge of the roof.
Pitched roof tar paper.
Cut it to fit your roof if.
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.
Roll out the tar paper along the bottom edge of the roof.
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.
It also offers fire resistance required for home construction.
In order to know the appropriate amount of roofing felt to use the roof pitch will need to be calculated first.
After this lines should be snapped every 34 as you move up the roof.
Before laying roof felt all rotten decking must be replaced.