Ondura re-roofs over practically anything.
Ondura can be applied directly over even surfaces like asphalt shingles. Or over uneven surfaces by first installing nailing strips. In a re-roof application, that saves you the bother and expense of having to tear off an old roof. And that makes re-roofing easier, faster, and cheaper.
Size: 48" x 79" each
Weight: 18 lbs.
Sheets per covered square: 4.5
What if I have a Double Shingle Roof already of 35 Square Feet on an Old House built with a Cable Roof in 1950's in Pittsburgh????
Is OnDura too heavy and what about snow making it heavy and what about electrical heat gutters hurting it???
I am being told by contractors that Three Layers is too heavy for a roof, and is Ondura too heavy as the Third Layer???
Please Respond ASAP!
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