I'm plan to reroof my house with metal roofing panels over the
existing asphalt shingles. Some manufacturers recommend nailing down
wood strips and screwing the metal panels to the wood. Other manuf.
say the panels can be applied directly to the existing roof covering.
Anyone have any experience either way?
Thanks in advance
shel007 at fastmail dot fm
(change the at and the dot)
I had a Gerard roof put on (paid for by insurance after a big hail storm
took out my heavy shake). They put it over the shake but put down 1x4 and
2x2s first. They nailed everything but perhaps not the same type of panels
that you are working with:
1x4 vertical on the roof and then 2x2 horizontal and then the panels
attached to the 2x2.
Just a guess, but the manufacturers probably have a better idea of what
works for their product than any of us here. I'd follow their
recommendations. What may be good for one brand, may not be for another.
metal roofing panels over the> existing asphalt shingles. Some
manufacturers recommend nailing down> wood strips and screwing the metal
panels to the wood. Other manuf.> say the panels can be applied directly to
the existing roof covering.
Speaking from experience. I had a metal roof put over my uninsulated roof
(floor insulated), directly over the shingles. Had the same two choices
you have - direct or raised on studs. Wish I had spent the little extra. I
now have mold problems on the inside wood of the roof due to lack of
circulation and the heat/cold issues with a metal roof (condesation). Since
the attic is unoccupied, I just leave a window open in the winter for air
circulation which has helped lessen the mold. However, I DO NOT regret a
metal roof and still love it. No more ice dams, roof raking or weight from
snow buildup. And it's not noisy when it rains, either.
Envision Whirled Peas
it rained, it was like living in a snare drum.
Soft water? <g>
I don't know, perhaps the additional layers of old shingles. Now, the
metal roof on the barn is a whole other story. A light drizzle sounds like
Envision Whirled Peas
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