Guest User
1/18/2005
Is the installation of vertical panel standing seam roofing over 2 layers of asphalt shingles a good practice? A contractor is proposing to add 1x4 wood lath strips between the shingles and the metal panels.
Guest User
1/18/2005
If there is a building code in place, this probably violates it. Other than that, you need to go back to the manufacturer of the roofing for their opinion in regards to the particular roofing panel you are installing. I will say this, the low weight of metal encourages its installation over old shingles.
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