The felt paper is in turn covered with a flood coat of bitumen asphalt or tar and then gravel to keep the sun s heat uv rays and weather off it and helps protect it from cracking or.
Flat roof tar paper.
This kind of material is incredibly resistant to the ultraviolet rays from the sun.
Many home builders use roof tar when constructing a flat roofed house.
United roofing gator skin synthetic roof underlayment 42 in x 285 8 ft 1 000 sq ft synthetic roof underlayment.
It is also very effective in protecting your roof from water and snow which naturally accumulates on a flat roof.
How to install roofing tar paper.
Traditionally most flat roofs in the western world make use of tar or asphalt more usually felt paper applied over roof decking to keep a building watertight.
Tar paper is considered an underlayment it goes under a more durable roofing material.
Tar paper also know as roof felt is a heavy paper impregnated with tar which makes it waterproof.
It acts as an added moisture barrier.