Waste Factor On A Hip Roof

For example if you measure 4 inches the pitch of your roof is 4 12.

Waste factor on a hip roof.

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. Note the word large wasn t included. That s 500 to 600 variance on the estimate. This will give you the rise over run or pitch.

The number of sheets the waste percentage will add. 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. Roof waste is automatically calculated based on seven factors. Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry.

Ask question asked 3 years 7 months ago. Sure on an average job you can somewhat accurately predict a waste factor. 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. Active 3 years 7 months ago.

This roof slope factor table also consists of hip and valley factors to measure the possible hips and valleys. The top row is a total of your roof area measurements with pitch added 5 for waste. 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. The sketched roof model.

With a large roof it s off. Number of sheets needed including the waste. The material type waste can be auto calculated for wood. Better just to hmmmm measure the hip ridge and.

Calculating waste factor for hip roof w valley using cedar shakes. Area of roof square feet. Multi level complex roofs are difficult to estimate. With a cut up job that waste factor for hip and starter is off.

Also show waste for valleys hips and or rakes and added to your squares. The waste is 4295 92 95 divisor 4522 02. That s because it is the smaller cut up hip roofs that can often have the highest waste percentage. Pitch of the roof rise in 12 waste factor in a percentage preset 10.

Viewed 885 times 1. A 7 5 variance of waste on a 30 square roof would be 2 33 squares. Any roof not average the waste factor for hip and ridge will be off. The sub total is 3977 70 x 1 08 4295 92 pitch has been added for 5 12 pitch.

The 3977 70 is the total of your actual roof measurements.