From there the waste factor increases with every obstruction such as a chimney and with every hip or valley.
Gable roof shingle waste.
Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes.
The top row is a total of your roof area measurements with pitch added 5 for waste.
If you re a roofing contractor and have worked with insurance claims you ve heard this before.
Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry.
Other simple gable roofs will require cut shingles at the rakes.
One pack of standard shingles covers 33 sq.
The waste is 4295 92 95 divisor 4522 02.
Roof waste calculation accurate roof waste calculator this download requires a 200 donation via paypal.
Moreover during the process of the repair some shingles and tiles might slide off.
A gable roof s square footage is equal to that of a hip roof with the same dimensions.
The 3977 70 is the total of your actual roof measurements.
The difference is in the fewer amount of ridge capping you need and the amount you will waste will be less than that for a hip roof.
The sub total is 3977 70 x 1 08 4295 92 pitch has been added for 5 12 pitch.
Same size roof now a hip roof at 7 5sq waste.
Length of a shingle.
This is rarely the case however since not all homes have dimensions that can be perfectly fit with 12 inch x 36 inch shingles.
For example consider a typical 50sq gable roof with 5sq of waste.
The difference is in the amount of ridge capping you need and the amount you will waste.
You also know how ridiculous this is.
Calculate the amount of asphalt or fiberglass shingles needed to cover a hip roof.
Unless it s cut to ribbons more than likely you ll have a lot of left over bundles at 15 waste factor.
Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.
A hip roof s square footage is equal to that of a gable roof with the same dimensions.
The only roof that will generate no waste from cutting is that rare simple gable whose roof length is divisible by the 3 ft.
Keep in mind that the roof shingle calculator assumes zero waste.
If the roof isn t that cut up you may have a couple squares of waste.
Note that in the last 3 4 years costs of roof shingles and many accessories have gone down by an average of 18 20 currently the us national average for benchmark architectural shingles is around 74 51 square or 25 per bundle.