Roofing material is estimated by the square which is equal to 100 square feet.
How many squares average roof.
Cecil venturella march 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.
Here s a look at the cost breakdown for different projects.
Things you will need steel tape measure.
100 square feet 1 roofing square 9 290304 cubic meters si unit.
Outside of the u s a degree angle is typically used.
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.
A square simply refers to a 10 x 10 square of roofing.
Change the 2000sf dimensions to 45x44 4 feet with ridge along the 45 dimension you get 51x50 4 roof plan footage 2570 sf flat or 3635 at 12 12 slope.
Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive.
Link to your exact conversion.
Just those two examples give you a range of from 1 3 times footprint square footage to almost 2 times for a one story house.
In general the average residential property will have a roof measured between 22 35 squares.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
You can calculate the cost of your roof by following these steps.
Take away overhangs and of course the ratio can go as low as 1 0.
This is simply 100 square feet of roof.
10 feet by 10 feet 100 square feet.
Check that your footage measurements are within this range so you can start off on the right foot.
The average roof is 3 000 square feet or around 30 squares.
For instance if the roof is 1550 square feet then it is 16 squares.
Multiply the number of roofing squares for a medium pitch roof by 1 12 to 1 25 or by 1 3 to 1 42 for a high pitch roof to get the square roof area.
1 average replacement time calculated as an approximate time in days for a professional roofing crew to remove old and install 35 40 squares of new roofing materials on simple gable or hip roof with up to 8 12 pitch.
To find the squares divide the overall roof area by 100 and then round up.
Each roofing task is subjected to its own costs and these have to be noted before a final estimate is put together.
All numbers in the chart were calculated based on standard installation and do not include any roof repair work.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
Next you will need to use a roofing materials calculator.