Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure.
1136 sq ft how many squares of roofing felt.
This felt will help prevent damage to your roof from wind driven rain and water from other sources.
This gardner asphalt 15 432 sq.
Divide the result from step 3 by 100.
If the roof has complicated hips and valleys add another 10 to 25 percent to account for the added area.
It does not matter how you arrive at 100 square feet.
Using an international foot of exactly 0 3048 meters length.
Rolls of felt are 36 wide x 144 long for 15 and 72 long for 30.
Heavy duty felt design lays flat and minimizes wrinkling.
Width and a 144 ft.
It is often compared to slope but is not exactly the same.
You will need to express this size in terms of square feet.
Product may vary by store.
Pitch measurement method 2.
Bundles of roofing material per square.
1 ft x 1 ft.
Unrolled length that combine to provide over 430 sq.
For residential and commercial use.
Of coverage for residential and commercial roofing projects.
Multiply the result in step two by 1 10 to account for waste.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
Asphalt saturated material for excellent waterproofing.
Felt roof deck protection.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
100 square feet 1 roofing square 9 290304 cubic meters si unit.
One square is equal to 100 square feet.
10 feet by 10 feet 100 square feet.
Round up to convert square feet to squares.
Roofing materials are always specified in squares.
On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof.
1 roofing square 9 290304 m 3.
The first step in a free roofing estimate is measuring the roof dimensions.
Felt has a 36 in.
Add an extra layer of protection between your shingles and roof deck with this 30 216 sq.
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.
Roofing felt is sold by the roll.
8 inches and you have an 8 in 12 pitch.
10 feet x 10 feet 100 square feet or 1 roofing square 5 feet x 20 feet 100 square feet or 1 roofing square 2 feet x 50 feet 100 square feet or 1 roofing square 50 feet x 50 feet 2500 square feet so 2500 100 25 roofing squares.
Outside of the u s a degree angle is typically used.
How many rolls of felt will you need.