How To Installing A Metal Roof Over Shingles

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

How to installing a metal roof over shingles.

Most metal shingles will be attached to the roof using metal shingle. 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. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. Start at the highest point and the furthest point from the trash container and take off all the old shingles flashing vents and boots.

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. Install the metal edging. How to install a metal roof over shingles.

Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. Put the steel down directly on a vapor barrier. The low weight of metal roofing is one thing that encourages this. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Can i install a new metal roof over shingles. Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once. Anatomy of a steel roof. Use 1 1 4 inch.

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. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Make sure roof is square.

Installing metal roofing over shingles is the best solution. The metal used for the roof can be tin copper aluminum or steel. We get asked this question all the time. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh.

Install your metal edging around the perimeter of your roof. What s involved in how to install metal roofing. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.