Include dormers the small outjuttings over attic.
Measure square footage of roof.
It will also give you the square footage of your roof and any other areas that you re wanting to estimate.
For instance if the roof is 1550 square feet then it is 16 squares.
Cecil venturella march 3.
This is simply 100 square feet of roof.
How to calculate square feet of a roof step 1.
Measuring a roof is pretty simple if you know what you re doing.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
A square simply refers to a 10 x 10 square of roofing.
A home s roof is measured in squares.
Calculate each plane separately.
Multiply the length and width of each square or rectangle shaped plane.
In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area.
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It will also give you the perimeter of the shape of the roof.
If a section is 120 feet 37 m x 100 feet 30 m its total square footage would be 12 000 square feet 1 100 m 2.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
You can even embed this tool on a website that you own.
Be sure to find the area of any dormers on your roof as well.
How to calculate your roof square footage first measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.
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.
Each square is 100 square feet.
To find the squares divide the overall roof area by 100 and then round up.
The base width is the distance from one corner of your roof to the other at its base on the short side of your house.
If you are replacing your entire roof you will need to purchase shingles in 50 squares to sufficiently cover your 5 000 square foot roof.
Measure the length and width of every roof plane or surface.
If your roof is 5 000 square feet you will have 50 squares.
Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.
To measure this roof we used a 25 foot tape measure and sketched the roof out.
Using this tool will be very helpful for you in finding out the acreage or the tract of land of your property.