You want to be sure that the roof and shingles are in suitable shape for the project.
Steel roof over shingles or not.
No you do not have to tear off your shingle roof.
The vast majority of installations of the metal roofing systems produced by my company are over existing shingles.
One of the major advantages of metal roofing is that it is very lightweight.
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.
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.
You can usually install metal roofing over shingles because most types are lightweight thin and pliable.
Installing metal roofing over shingles is the best solution.
As you probably know a metal roof is a major initial investment so knowing some of the drawbacks of this roofing material is important.
The metal used for the roof can be tin copper aluminum or steel.
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.
This makes it a perfect material to be installed right on top of an existing shingle roof.
It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same.
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.
The low weight of metal roofing is one thing that encourages this.
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.
Put the steel down directly on a vapor barrier.
The answer is yes.
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.
Common metal roof problems.
However it is best to consult with a professional as to your situation.
Metal roofing can be installed over top of shingles.
Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh.