Roofing material is estimated by the square which is equal to 100 square feet.
How much square foot is my roof.
Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.
Multiply the square footage of your roof by 1 to get the 10 percent waste allowance.
A square simply refers to a 10 x 10 square of roofing.
You will need to express this size in terms of square feet.
The total amount of roofing material you need is 17 300 1 730 19 030 square feet.
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.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
To conclude the example if your total roofing area is 17 300 square feet your waste allowance would be 17 300 x 1 1 730 square feet.
A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.
Roof removal costs 1 63 per square foot for a single story home and as much as 1 96 per square foot for a 3 story townhome.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
To accurately calculate the area of your roof you must first determine its slope or pitch.
A square is an area of roof which measures 100 square feet.
To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet 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.
Most homeowners spend between 1 500 and 3 000 total when hiring a professional and the cost goes up from there for high end materials like slate or other stone tiles which are heavier.
In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.
The result is 240 and this means you would need 240 squares of shingles to cover that roof.
This is simply 100 square feet of roof.
The first step in a free roofing estimate is measuring the roof dimensions.
Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive.
Convert the area to roofing squares.
The average roof is 3 000 square feet or around 30 squares.
It is often compared to slope but is not exactly the same.
Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed.
Outside of the u s a degree angle is typically used.