Step 4 divide any irregularly shaped areas of the roof into more manageable triangles and rectangles then calculate square footage for those individual.
Roof 25 feet by 22 fet.
There is a range of different solutions for roofing underlay some are tacked or stapled while others are self adhesive ranging in price from 0 18 to 0 49 per square foot for materials only.
The total run is the distance from the peak to the edge of the roof which in this case is the total width divided in half which is equal to 10 feet or 120 inches.
8 inches and you have an 8 in 12 pitch.
In the usa you can expect to pay between 3 19 4 43 per sq ft.
For a 2 000 square foot home roof truss installation typically costs between 7 200 and 12 000 you ll spend anywhere from 1 50 to 4 50 per square foot for materials alone or between 35 and 150 though extremely long and complex types can reach 400 each labor runs anywhere from 20 to 75 per hour ranges in both materials and labor are due to location size and roof complexity.
For example if a triangle shaped roof plane measures 60 feet along the base and is 30 feet high we have 60 x 30 1 800 feet divided by 2 900 square feet for the triangle shaped plane.
There are also 29 standard sized shingles.
If this isn t practical then perform the same measurement on the underside of the roof.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
If you choose another material such as metal or wood the range is 7 35 10 73 per sq ft.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
Pitch measurement method 2.
If this distance measures 4 inches you have a 4 in 12 pitch.
For example if the peak is 4 feet and the total roof with is 20 feet the total rise is 4 feet or 48 inches.
However shingles are packaged in a way that they are light enough for the average person to carry around.
On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof.
These are only estimates though talk to your neighbours to see what roofing costs in.
Labor costs vary based on the type of underlay at 0 15 to 0 22 per square foot.
In the uk you price of getting a roof fitting is 72 75 per square metre.
For a 2 400 square foot roof you can expect to spend 792 to 1 704.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
If the price proposed by your contractor deviates from these values it is advisable to check with other contractors before starting the works.