How To Installing A Metal Roof Over Shingles

The metal used for the roof can be tin copper aluminum or steel.

How to installing a metal roof over shingles.

The low weight of metal roofing is one thing that encourages this. 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. Can i install a new metal roof over shingles. In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles.

How to install a metal roof over shingles. 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. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Install the metal edging.

You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Put the steel down directly on a vapor barrier. Make sure roof is square. Installing metal roofing over shingles is the best solution.

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. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. We get asked this question all the time. Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once.

Install your metal edging around the perimeter of your roof. Replace all these with the new metal roofing. Yes you can and by doing so you save in the labor and hassle of tearing off the old roof and you won t be contributing to filling our landfills. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same.

Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. Most metal shingles will be attached to the roof using metal shingle. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. What s involved in how to install metal roofing.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Make a slat board base on top of the shingles. Use 1 1 4 inch.