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Agmines
11-21-04, 07:14 PM
Need Help On OnDura Roofing Over A Double Shingle Roof!
November 21st, 2004 10:14 PM
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OnDura at:

http://www.ondura.com/home.htm

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.

Sheets

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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jmorgan1
11-22-04, 05:43 AM
Most building juristictions will not allow a 3rd roof. 2 is the max. This is regardless of the type of roofing used.
Jim