Quick question. I am am building a house (having one built) and received an roofing estimate. Although the per SF price is really good, they have calculated an extra third for slop. This roof is mostly 12:12 and has many valleys. It is very complicated, but is that a reasonable amount?
Brian
Replies
I usually call it waste, but slop gets the same idea across as long as they don't do slop for work.
It confused me at first, because i thought you were talking slope untill I read the pitch, LOL
Anyway, 10-15% is common. A highly cut up roof can go up to 30% waste factor
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