How To Put A Metal Roof On A Shingle Roof

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

How to put a metal roof on a shingle roof.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.

What s involved in how to install metal roofing. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Anatomy of a steel roof. Move from bottom to top.

It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. Put the steel down directly on a vapor barrier. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Attach them to your roof with 3 inch wood screws in each corner.

Metal roof over shingles condensation metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it. 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. A benefit to doing it this way is that you can see if there is any rotten plywood that needs to be replaced before installing the new roof.