Metal Roofing Corrugated waste calculation

Charlene Ross
7/6/2014
Hello, I'm associated with Catastrophe insurance claims. Can you tell me please if there is a rule of thumb for calculating waste for metal roofs. Corrugated metal; mostly used on agricultural structures... barns, sheds, etc Thank you.
Dick Bus
7/7/2014
Charlene, the picture you show, which is a simple roof line the waste should be less than 5%. For a complex roof area with dormers, hips and valleys the waste could exceed 30%. I hope this helps.
Info @windowsonwashington.net
An informed customer is our best customer.
7/7/2014
+1 10% is our usual minimum waste and this would below that number.

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