Steel Roof Over Shingles Or Not

Metal roofing can be installed over top of shingles.

Steel roof over shingles or not.

The problem with this is that as the metal heats up and expands or cools down and contracts it moves a little on the 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. The low weight of metal roofing is one thing that encourages this. Installing metal roofing over shingles is the best solution.

Some people think that they can just install the metal roofing right over the old shingles roof without any barrier in between but this is highly not recommended. Because they re largely made of recycled material and can be recycled again and again metal roofs are considered a more sustainable choice than asphalt shingles. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. As you probably know a metal roof is a major initial investment so knowing some of the drawbacks of this roofing material is important.

It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. However there are some things that you will want to check out before doing it this way. You can usually install metal roofing over shingles because most types are lightweight thin and pliable. Put the steel down directly on a vapor barrier.

You want to be sure that the roof and shingles are in suitable shape for the project. 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. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. The answer is yes.

No you do not have to tear off your shingle roof. While metal roof systems are one of the most durable and environmentally friendly roofing material available on the market it does come with its fair share of disadvantages. This makes it a perfect material to be installed right on top of an existing shingle roof. Below are some of the most common cons of a metal paneled roof.

One big advantage to metal roofing is that it is light weight which makes it the perfect material to be installed over an existing shingle roof. However it is best to consult with a professional as to your situation.