Section 1511 3 1 of the 2018 international building code international code council series 1st edition states the installation of a new roof covering over an existing roof covering shall be permitted where any of the following conditions occur 2.
Metal roof over existing roof.
Installing metal roofing over shingles is the best solution.
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.
Although many metal roof systems can be applied over an existing roof layovers are more commonly done with asphalt shingles.
A lesser discussed but equally attractive advantage is that a metal roofing system can often be installed right over an existing roof.
There are a few situations where roofing over an existing roof just isn t possible.
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Roofing over your existing roof is not always possible.
The metal used for the roof can be tin copper aluminum or steel.
There are a number of issues a roofer will have to deal with when it comes to metal over metal retrofits but listed below are a few where the use of a roof hugger system may help resolve.
Choose a shingle style with the same dimensions as those on your.
There are several advantages to metal roofs 40 year warranties water shedding properties and energy efficiency being some of the more publicized examples.
Metal roofing is a commonly used material for several reasons ranging from low cost to durability.
A steel roof is expensive but if it lasts the life of your home it might be worth it.
Does the existing roof need an insulation upgrade.
Installing a metal roof over an existing shingle roof.
Are there workers in the building that would be at risk if the.
The installation of metal roofing is often easier and faster than other roof types and because of its simple design and generally large size can actually be installed directly on top of existing roofing materials like asphalt shingles and foam roofing.
When choosing to install a metal roof homeowners need to.