Waste Factor On A Hip Roof

With a cut up job that waste factor for hip and starter is off.

Waste factor on a hip roof.

The sub total is 3977 70 x 1 08 4295 92 pitch has been added for 5 12 pitch. Number of sheets needed based on exact square footage of the roof. The number of sheets the waste percentage will add. Roof waste is automatically calculated based on seven factors.

Better just to hmmmm measure the hip ridge and. The material type waste can be auto calculated for wood. Number of sheets needed including the waste. Active 3 years 7 months ago.

Calculating waste factor for hip roof w valley using cedar shakes. The 3977 70 is the total of your actual roof measurements. That s because it is the smaller cut up hip roofs that can often have the highest waste percentage. Using a waste factor for starters and ridge is a bad idea.

This will give you the rise over run or pitch. Any roof not average the waste factor for hip and ridge will be off. 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. This roof slope factor table also consists of hip and valley factors to measure the possible hips and valleys. 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. For example if you measure 4 inches the pitch of your roof is 4 12.

The waste is 4295 92 95 divisor 4522 02. 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. Also show waste for valleys hips and or rakes and added to your squares. The top row is a total of your roof area measurements with pitch added 5 for waste.

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 sketched roof model. Note the word large wasn t included. Viewed 885 times 1.

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. 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. With a large roof it s off.

Ask question asked 3 years 7 months ago.