Just use it as a starting point and you ll have a fairly basic idea of what you re dealing.
Estimate my roof size.
Keep in mind that using google earth isn t going to give you a 100 percent accurate reading but it will give you a basic idea of the size of the roof for your calculations for the roofing materials.
The first step in a free roofing estimate is measuring the roof dimensions.
Dividing the total area of your roof by 100 will therefore help you figure out how many squares worth of shingles to order.
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.
Don t use this as your only method of measuring.
Estimate the pitch of the roof.
A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.
Knowing how to estimate roofing materials is important.
Actual square feet of house.
Low medium or high.
A low pitch rises 3 inches every 12 inches of base horizontal length.
You ll have to calculate your roof area or the overall size of your roof to determine the amount of materials you ll need.
Divide your square footage by 100 to estimate your materials.
Calculate the size of your roof and estimate how many bundles of asphalt shingles rolls of felt and squares of roofing material are needed for a new roof.
Tips on measuring for roofing.
A 12 in 12 pitch is a.
Add the price per square of materials to get an estimated material cost.
After measuring the area of the footprint you can estimate the actual roof area based on the angle of the roof.
Not only will it help eliminate waste but it will also ensure that you buy just enough for the roofing job.
Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.
The google maps area calculator is not 100 accurate.
The run is the distance from the outside edge of a.
While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12.
To accurately calculate the area of your roof you must first determine its slope or pitch.
Dimensions measured from the ground.
Nominal roof size in sq.
To accurately calculate the area of your roof you must first determine its slope or pitch.
Roof pitches are described in terms of rise and run.
You will need to express this size in terms of square feet.
Roofing materials are typically packaged in squares each of which is the equivalent of 100 square feet 9 3 m 2 of roof space.
Ft roof pitch calculate.
