It s purpose is to prevent water from penetrating the roof decking material like plywood or osb oriented strand board used for sheeting roofs.
How to tar paper a shed roof.
Tack one end of the felt in place so that it remains in place as you roll it out.
It is placed between the roof decking or sheeting and the roof shingles.
Start by measuring the length and width of one side of the roof in inches.
The roofing felt should be applied in layers that overlap.
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.
The ease of installation and affordability of felt makes it a must have for your next shed roof installation.
This extra length will be folded over and nailed to the battens so that any water will drip off the edge without getting the wood wet.
As you work the paper can be tacked down in the center so it won t blow away.
Cut lengths of shed roof felt to match the long side of the roof be sure to add 2 to 3 inches to the length at each end.
When investing in a shed a roll of tar paper is a small cost that can prevent costly damage.
Begin your first row of tar paper with the bottom of the tar paper slightly hanging over the edge of the roof.
Felt paper is sometimes referred to as roof underlayment or tar paper.
For example if its length is 120 inches 10 ft and its width is 240 inches 20 ft the area is 28 800 square inches 200 sq ft.
Tar paper used to be made by soaking a porous paper made from cotton rag scraps with thinned liquid asphalt.
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.
I hope this article will help you make a more informed decision about installing roofing felt on your shed.
Roll out the tar paper along the bottom edge of the roof.
The paper comes in different weights.
Cut it to fit your roof if.
The most common weights are 15 pound and 30 pound tar paper.
Calculate the area of your roof by combining the area of each surface.