Gable Roof Shingle Waste

Calculate the amount of asphalt or fiberglass shingles needed to cover a hip roof.

Gable roof shingle waste. Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry. From there the waste factor increases with every obstruction such as a chimney and with every hip or valley. Waste factors simple roofs gable 1 5 complex roofs 5 10 measure height from the bottom of the roofline to the ridge board. For example consider a typical 50sq gable roof with 5sq of waste.

Keep in mind that the roof shingle calculator assumes zero waste. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. If the roof isn t that cut up you may have a couple squares of waste. Moreover during the process of the repair some shingles and tiles might slide off.

The waste is 4295 92 95 divisor 4522 02. Other simple gable roofs will require cut shingles at the rakes. If you re a roofing contractor and have worked with insurance claims you ve heard this before. You also know how ridiculous this is.

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. The top ridge will be shorter for a hip roof but the 4 hips will add to the amount of ridge capping needed and because of the angles the amount of waste will be higher than for a similar sized gable roof. 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 only roof that will generate no waste from cutting is that rare simple gable whose roof length is divisible by the 3 ft.

The sub total is 3977 70 x 1 08 4295 92 pitch has been added for 5 12 pitch. 10 for all gable roofs 15 for all hip roofs. A hip roof s square footage is equal to that of a gable roof with the same dimensions. Same size roof now a hip roof at 7 5sq waste.

Length of a shingle. 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. One pack of standard shingles covers 33 sq.

Unless it s cut to ribbons more than likely you ll have a lot of left over bundles at 15 waste factor. This is rarely the case however since not all homes have dimensions that can be perfectly fit with 12 inch x 36 inch shingles. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.