What's a Square of Shingles Weigh?
What's a Square of Shingles Weigh? (post #56530)
MojoMan on Mon, 04/07/2003 - 13:14
I know I wrote this down somewhere, but can't find it now....
I'm bidding on a re-roof job and need to estimate disposal costs. What does a square (100 sq ft) of 3-tab asphalt shingles weigh?
Thanks!
Al Mollitor Sharon, MA
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(post #56530, reply #1 of 7)
Since they call 'em 235# shingles, I always figured that's about what they weigh per square.
We figure the weight at about 2.2 PSF per layer for design loads, so that sounds about right.........
Q: What's the difference between a lawyer and a trampoline?
A: You take your cleats off before jumping on the trampoline.
(post #56530, reply #2 of 7)
240#
(post #56530, reply #3 of 7)
maybe 205# for cheap 20 year shingles 3 bundles per square. Easily 300#-320# plus for 50 year shingles 4 bundles per square.
they do loose a little weight as they age.
here----disposal costs would be based on volume ----weight wouldn't enter into it.
(post #56530, reply #4 of 7)
"they do loose a little weight as they age."
If shingles do that why do shinglers gain weight as they age.
(post #56530, reply #5 of 7)
LOL,
Well Bill,
in my inflated case it has something to do with mostly laying around on the couch december,january,february, march.
(post #56530, reply #6 of 7)
Real world-about 10 sq/ton for estimating.
(post #56530, reply #7 of 7)
Remember to LOOK UNDER the first layer of visible shingles on the roof. You might be tearing off a roof with 2 or 3 layers on it. That will sure ruin your estimating day!
Davo