How To Installing A Metal Roof Over Shingles

Put the steel down directly on a vapor barrier.

How to installing a metal roof over shingles. The metal used for the roof can be tin copper aluminum or steel. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Start at the highest point and the furthest point from the trash container and take off all the old shingles flashing vents and boots. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same.

Install your metal edging around the perimeter of your roof. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Installing metal roofing over shingles is the best solution. 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.

Install the metal edging. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. 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. Can i install a new metal roof over shingles.

What s involved in how to install metal roofing. 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. The low weight of metal roofing is one thing that encourages this. Make a slat board base on top of the shingles.

Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. 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. Anatomy of a steel roof. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Make sure roof is square. 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. Replace all these with the new metal roofing. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles.

Use 1 1 4 inch. Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once. Most metal shingles will be attached to the roof using metal shingle.