Installing a metal roof over shingles can also result in an increased chance of trapped water vapor and moisture between the new roof and old roof resulting in new mold and rot.
Remove old shingles before putting on metal roof.
Every roof needs to be evaluated individually.
However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.
A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.
Call for free estimates from roofing pros now.
In my opinion going over the old shingles is worthy of consideration because of the benefits of doing so.
1 remove the shingles before installing the metal roof the first way to install a metal roof over shingles is by completely removing the old shingles before installing the new metal roof.
Find a pre screened local roofing contractor.
Things to know about metal over shingle roof problems.
If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.
Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.
Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
But now that i said that i would tell you that if it was my house i probably would and the reason is i don t want to have all those old shingles under the roof.
March 11 2020 by safe harbor roofing reroofing is the practice that involves installing a new roof over an existing one.
After all you ll be making a significant and long term investment.
Well that s why the metal roof is such like an eco friendly product because you don t have to get rid of all of that stuff to the landfills.
Otherwise you will need to remove the shingles.
Both metal and shingle roofs are great options for your next roofing project.
Remove roof shingles before installing a metal roof.
If you re going to add a roof on top of an old one it s a good idea to remove any loose shingles and apply a new layer of 30 pound roofing felt before laying the new shingles.
In a typical year approximately 90 of the roofs our company manufactures are installed over old shingles.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
