The low slope of your roof will dictate what types of products can be used on it. Asphalt shingles require a 3:12 pitch, as do many metal roofs. However, certain types of metal roofs can be used at lower pitches. What is your roof pitch?
Todd Miller
2017-09-09 13:59:43.000000
i have 1950 built home using 2" roofdeck product made of celotex/homasote type material over the beam ceilings. From floor level looking up, my ceiling is the underside of this roofdeck/insulation material. It is a low slope roof.
The prior owner put a rock asphalt tar roof on it, and by the looks of some window wood droop, and some of the celotex materail sagging as I look at the ceiling from inside the house, I deduced that rock roof was probably too heavy for that product.
Therefor, I am removing the asphalt/rock roof and want to put standing seam metal roof directly over the celotex. When I take off the rock asphalt roof I am planning on replacing the celotex product with a homasote mfg., product of same dimensions and a standing seam metal roof on top of the material. Any special needs to use under the metal?
Would corrugated roof be better here?
Is this a proper application for a metal roof? What Type of fasteners to use into the celotex?
or just forget using a metal roof, and go with asphalt shingles? thanks
stevo g
2017-09-09 11:21:10.000000
I am guessing you are under 3:12 if you had an old tar and chip roof on it.
At that point, we are going to need to stay with a mechanically locked standing seam.
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