Estimating Shingles

[@slydog7131]

Very good. Thank you. For a rip roof as you have drawn, do you find that there is more waste that with a gable roof?

[@timpalmer-logstolumber1999]

Yes, there is more waste on a hip roof. Because of the angles there is plywood and shingles that can't be used. Where as hip roof has very little waste.

[@timpalmer-logstolumber1999]

@@slydog7131 yes, if done right there will be almost no waste on a gable roof.

[@la1electric278]

Hi how did you get the 8 and the 12

[@timpalmer-logstolumber1999]

For my example I gave the roof an 8/12 slope

[@oohookoo]

Thank you

[@aaronwilliams6812]

couldnt you just divide the total square footage by 33 and get the total number of bundles?

[@timpalmer-logstolumber1999]

Since there is 100 square ft in a square and 3 bundles make a square. Each bundle covers covers about 33 square ft. So yes, you can take total square ft divide by 33 to get the number of bundles. Don't forget to add for waste.

[@timpalmer-logstolumber1999]

Since there is 100 square ft in a square and 3 bundles make a square. Each bundle covers covers about 33 square ft. So yes, you can take total square ft divide by 33 to get the number of bundles. Don't forget to add for waste.

[@aaronwilliams6812]

@@timpalmer-logstolumber1999 Thank you.

[@597158madroofer]

i use an engineer's wheel on the ground ,, i draw out the roof giving the measurement for each side then use pitch factor,, if i have a 4 hip roof (rectangular shape )and across the front its 40 ft by 20 ft down the side will equal 800 sq ft ..If the pitch is a 5/12 ( pitch factor is 1.083),,so 800 x 1.083 = 866,,, being a hip roof (15%) for waste 866 x .15% = 129.. so..866 +129 =995 SQ FT ..I WOULD ROUND UP TO 10 SQ FOR THE ROOF ,, That includes starter and hip and ridge cap ..I did 2 roofs back to back and I wound up with 3 bundles left over total between the 2 roofs

[@timpalmer-logstolumber1999]

@@597158madroofer is the pitch factor on the engineers wheel?

[@597158madroofer]

@@timpalmer-logstolumber1999 s,,Roof Pitch Factor Chart you can get an engineer's wheel at home depot if you do...get the big wheeled one because you are rolling it in the yard.. 5/12 is 1.083 example Roof Pitch Angle Roof Pitch Factor Valley & Hip Factor 1/12 4.76° 1.0035 1.4167 2/12 9.46° 1.0138 1.4240 3/12 14.04° 1.0308 1.4362 4/12 18.43° 1.0541 1.4530 5/12 22.62° 1.0833 1.4743 6/12 26.57° 1.1180 1.5000 7/12 30.26° 1.1577 1.5298 8/12 33.69° 1.2019 1.5635 9/12 36.37° 1.2500 1.6008 10/12 39.81° 1.3017 1.6415 11/12 42.51° 1.3566 1.6853 12/12 45.00° 1.4142 1.7320

[@597158madroofer]

@@timpalmer-logstolumber1999 Roof Pitch Factor Chart Roof Pitch Angle Roof Pitch Factor Valley & Hip Factor 1/12 4.76° 1.0035 1.4167 2/12 9.46° 1.0138 1.4240 3/12 14.04° 1.0308 1.4362 4/12 18.43° 1.0541 1.4530 5/12 22.62° 1.0833 1.4743 6/12 26.57° 1.1180 1.5000 7/12 30.26° 1.1577 1.5298 8/12 33.69° 1.2019 1.5635 9/12 36.37° 1.2500 1.6008 10/12 39.81° 1.3017 1.6415 11/12 42.51° 1.3566 1.6853 12/12 45.00° 1.4142 1.7320

[@timpalmer-logstolumber1999]

@@597158madroofer thanks, I will teach as alternative

[@597158madroofer]

@@timpalmer-logstolumber1999 you are welcome... kinda hard to explain without drawing it on a board.. makes it easy when the roof is cut up and too steep ..you can use this on house plans before the house is built too ...