Removal of shingles Correct Answer: estimate for the actual number of squares (not square feet). No estimating or rounding
Replacement of shingles Correct Answer: a) Include waste in the calculation
-10% - Composi
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Removal of shingles Correct Answer: estimate for the actual number of squares (not square feet). No estimating or rounding
Replacement of shingles Correct Answer: a) Include waste in the calculation
-10% - Composite
-15% - wood
b) Round up to the nearest bundle
-Assume 3 bundles per SQ for composite shingles
-Assume 4 bundles per SQ for wood
What do wood shingle estimates always end with? Correct Answer: fourths. .25, .5, .75, .00
What do composite shingle estimates always end with? Correct Answer: thirds. .33, .66, .00
Calculating Hip Roofs Correct Answer: get main body first. extensions second.
Hip roof triangular ends Correct Answer: are calculated when the main roof is calculated b/c a triangle is accounted for that didn't actually exist
When calculating extensions on a hip roof Correct Answer: don't count for the triangle, but don't forget the two parrallelograms remaining (there is a good chance they are identical)
When calculating the main body Correct Answer: Don't assume that you can just find one side of a roof and double it. Why? the rafters might be different lengths
How do you find the height of a hip roof? Correct Answer: the height of the triangle is equal to the length of the rafter that is forming the parallelogram
(only true if the pitch of the roof is identical and the angles on the hip roof are 90 degrees)
Do you round when removing a roof? Correct Answer: No, removal is always the exact number
What calculations can you use to replace? Correct Answer: x1.10 for composite
x1.15 for wood
.33 for composite
.25 for wood
"drop and roll" Correct Answer: the method for estimating carpet
How wide are carpet rolls? Correct Answer: 12 feet
What carpet allowance must you make in estimates? Correct Answer: You must add an additional 3" for length.
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