Waste Factor On A Hip Roof

The roof waste calculation tool takes the guesswork out of estimating sketched roofs and provides an accurate and consistent method for calculating the amount of roofing material required for waste.

Waste factor on a hip roof.

That s because it is the smaller cut up hip roofs that can often have the highest waste percentage. The 3977 70 is the total of your actual roof measurements. Also show waste for valleys hips and or rakes and added to your squares. A 10 slope roof should not be confused with a 10 pitch roof as a 10 slope roof means that the roof rises by ten inches for every foot of run.

The sub total is 3977 70 x 1 08 4295 92 pitch has been added for 5 12 pitch. Area of roof square feet. Calculating waste factor for hip roof w valley using cedar shakes. A 7 5 variance of waste on a 30 square roof would be 2 33 squares.

Pitch of the roof rise in 12 waste factor in a percentage preset 10. Viewed 885 times 1. The material type waste can be auto calculated for wood. Number of sheets needed based on exact square footage of the roof.

Ask question asked 3 years 7 months ago. The waste is 4295 92 95 divisor 4522 02. With a large roof it s off. For example if you measure 4 inches the pitch of your roof is 4 12.

Simply locate a roof rafter board place the end of the level against the bottom edge and measure from the 12 inch mark vertically to the bottom edge of the rafter. Multi level complex roofs are difficult to estimate. Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry. That s 500 to 600 variance on the estimate.

Number of sheets needed including the waste. This roof slope factor table also consists of hip and valley factors to measure the possible hips and valleys. Any roof not average the waste factor for hip and ridge will be off. With a cut up job that waste factor for hip and starter is off.

I ve been told that my hip roof would result in a whopping 30 waste factor with cedar shakes that three additional squares of shakes are needed above the amount required to cover the. Roof waste is automatically calculated based on seven factors. The sketched roof model. Using a waste factor for starters and ridge is a bad idea.

The number of sheets the waste percentage will add. Active 3 years 7 months ago. Sure on an average job you can somewhat accurately predict a waste factor. Better just to hmmmm measure the hip ridge and.

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.