How To Put On Metal Roofing Over Shingles

Put the steel down directly on a vapor barrier.

How to put on metal roofing over shingles.

With this video. Make sure roof is square. Doesn t provide the flattest surface for the metal roofing to be installed over each course of shingles is about a 1 8 higher than the course just below it. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board.

Metal roofing is resistant to fire rot and termites. Anatomy of a steel roof. 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. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.

Attach them to your roof with 3 inch wood screws in each corner. What s involved in how to install metal roofing. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. The answer to the question of how to install metal roofing over shingles has many advantages among them are.

We get asked this question all the time. Move from bottom to top. 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. Manufacturers provide 30 year warranties on metal roofing products.

The purpose of our channel is to create informational videos. A metal roof reduces cooling costs during the summer months because it can reflect the sun s rays. Winter heating costs may be reduced thanks to a double layer of insulation. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Make a slat board base on top of the shingles. It s the simplest and fastest way to install a metal roof. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. 40x60 metal building is it ok to put a metal roof over shingles.

3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Installing steel roofing over existing roofing materials is fairly simple.