For use with housewrap sheathing and roofing felt.
Roofing felt ground cover.
In most cases this will leave 400 square feet 37 m 2 of net coverage per 1 roll.
Today glass fiber or polyester fabric may be used instead of paper.
There are a wide variety of materials available for each layer.
A tar and gravel roof covering consists of a waterproof base layer multiple layers of roofing felt laminated together with bitumen and a surface layer of mineral aggregate.
Also known as tar paper roofing felt originated in finland in the 1870 s as a waterproofing underlayment for roofs.
To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof.
Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square.
One roll of conventional 15 felt covers 432 square feet 40 1 m 2.
12 x 1 in.
Tar and gravel roofing also known as built up roofing has been the go to flat roof technology for decades.
However you must allow for overlaps on joints.
Convert the area from inches to feet prior to purchasing your felt.
Ring or spiral shanked for greater holding power 27 47.
I was told by a guy at my work that roofing felt will help keep out bugs termites and what not if laid on the ground prior to laying down your vapor barrier.
What is the pros cons to laying down roofing felt underneath the 6 mil plastic.
Explore a number of housing related calculators as well as hundreds of other calculators covering topics such as finance math health fitness and more.
As well as add more moisture protection.
Consider other underlayment options as needed such as rubber or tar products.
How many nails will you need.
Rolls of felt are 36 wide x 144 long for 15 and 72 long for 30.
Wide head for superior holding power.
Frequently bought together this item.
Later asphalt was used in the manufacture of roofing felt.
Landscaping fabric geotextile fabric uv protected landscape fabric 45 50 in.
Polypropylene single net straw erosion control blanket.
Landscape fabric salt weed killer plastic sheeting for ground cover related products 8 ft.
First paper was impregnated with coal tar.
Purchase enough felt to cover your roof s area.
The average roll of 15 pound roofing felt covers about 400 ft 2 or 4 squares while the average roll of 30 pound roofing felt covers about 200 ft 2 or 2 squares.