Replies

1. 
   BossHog | Apr 07, 2003 04:42pm | #1

   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.

2. 
   carlsperry | Apr 07, 2003 04:48pm | #2

   240#

1. 
   SHazlett | Apr 07, 2003 06:04pm | #3

   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.

1. 
   BillHartmann | Apr 07, 2003 06:30pm | #4

   "they do loose a little weight as they age."

   If shingles do that why do shinglers gain weight as they age.

1. 
   SHazlett | Apr 07, 2003 07:32pm | #5

   LOL,

   Well Bill,

   in my inflated case it has something to do with mostly laying around on the couch december,january,february, march.

3. 
   Otis | Apr 09, 2003 08:09am | #6

   Real world-about 10 sq/ton for estimating. 

4. 
   Davo304 | Apr 09, 2003 08:22am | #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