Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.
How many square feet of roof do i have.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
10 feet by 10 feet 100 square feet.
For instance if the roof is 1550 square feet then it is 16 squares.
If your measurements are in another unit let s say inches or meters you will need to convert those measurements in feet by utilizing the method below.
How to estimate roofing materials.
If your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width.
Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.
It is often compared to slope but is not exactly the same.
A square simply refers to a 10 x 10 square of roofing.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
Using an international foot of exactly 0 3048 meters length.
1 roofing square 9 290304 m 3.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
1 ft x 1 ft.
Before calculating square footage make sure the measurements you have taken are in square feet ft 2.
Estimate the pitch of the roof.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
To find the squares divide the overall roof area by 100 and then round up.
However shingles are packaged in a way that they are light enough for the average person to carry around.
Add the square footage for all the planes together.
Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.
The result is the total square footage of your roof.
Although ceramic tile roofs are expensive they can have a life span of over 100 years.
100 square feet 1 roofing square 9 290304 cubic meters si unit.
If for example the total square footage for the examples used so far would be 14 400 the rectangular plane plus 900 the triangle plus 2 000 the irregular shape 17 300 square feet.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
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.
Check that your footage measurements are within this range so you can start off on the right foot.