Waste Factor For Gable Roof

Complex roofs 5 10.

Waste factor for gable roof.

If the roof isn t that cut up you may have a couple squares of waste. 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. For example consider a typical 50sq gable roof with 5sq of waste.

Unless it s cut to ribbons more than likely you ll have a lot of left over bundles at 15 waste factor. The amount of expected waste depends on the style and quality of the roof tile and on. 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. Measure the building length include the overhang multiply length by height for the area.

I ve had a few adjusters on really cut up roofs with 3 tabs were they won t pay for ridge cap allow a 20 waste factor. The only roof that will generate no waste from cutting is that rare simple gable whose roof length is divisible by the 3 ft. I charge 10 15 20 waste factor but rarely go that high. 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.

Measure height from the bottom of the roofline to the ridge board. From there the waste factor increases with every obstruction such as a chimney and with every hip or valley. Length of a shingle. You also know how ridiculous this is.

One pack of standard shingles covers 33 sq. Divide total area by 100 this is the number of squares required. Same size roof now a hip roof at 7 5sq waste. The average waste factor for clay roof tiles is between 10 and 15 percent although this number may be higher.

10 for all gable roofs 15 for all hip roofs. Roof waste calculation accurate roof waste calculator this download requires a 200 donation via paypal. A gable roof s square footage is equal to that of a hip roof with the same dimensions. Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry.