The low weight of metal roofing is one thing that encourages this.
Steel roof over shingles or not.
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.
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.
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.
You want to be sure that the roof and shingles are in suitable shape for the project.
Installing metal roofing over shingles is the best solution.
The metal used for the roof can be tin copper aluminum or steel.
The answer is yes.
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.
Below are some of the most common cons of a metal paneled roof.
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.
Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh.
The vast majority of installations of the metal roofing systems produced by my company are over existing shingles.
You can usually install metal roofing over shingles because most types are lightweight thin and pliable.
This makes it a perfect material to be installed right on top of an existing shingle 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.
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.
No you do not have to tear off your shingle roof.
Common metal roof problems.
As you probably know a metal roof is a major initial investment so knowing some of the drawbacks of this roofing material is important.
One of the major advantages of metal roofing is that it is very lightweight.
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.