Complete and separate roofing systems such as standing seam metal roof panel systems that are designed to transmit the roof loads directly to the building s structural system and that do not rely on existing roofs and roof coverings for support shall not require the removal of existing roof coverings.
Metal reroofing over existing standing seam metal roofing.
Mcelroy metal has develop several methods to recover an existing metal roof using the symmetrical 238t standing seam roof system.
Does the existing roof need an insulation upgrade.
It features a low profile seam that makes instaloc a wonderful choice for light commercial and residential applications.
In that case a new long lasting standing seam metal roofing system can be installed directly over the existing roof.
Mcelroy metal offers patented 138t and 238t recover systems that are designed to retrofit over existing metal or shingle roofs.
If you want to install steel over asphalt your best choice is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel.
Under many circumstances it is possible to install a new metal roof over the top of existing asphalt shingles even if there are two layers of asphalt shingles.
Instaloc offers a snap together standing seam system that can be used with solid decking.
Some systems will require a simple sub framing system that allows the new roof to be installed directly over the existing.
Available systems include a patented frame less metal over metal recover option that provides a low cost retrofit solution over existing exposed fastened panels with ribs up to 1 5 tall.
Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it.
238t recover systems provide a long term solution to existing exposed fastened metal roofs that have completed their service life at a cost that is competitive with single ply.
Advantages of metal roofs over shingles.
Our systems can be adapted to the existing roof s structural support system to provide long term life expectancy and reduced life cycle costs while also enhancing the property s curb appeal.
Section 1511 3 1 specifically addresses metal roof retrofits.
The existing roof s physical footprint framing system and other rooftop conditions will most likely control the new roof s geometry.
By placing metal roofing over shingles you can save in the labor costs of ripping them off while also preventing them from being thrown into landfills.
However it is important that you know the weight capacity of your roof and how many layers of shingles are currently on the roof.
The mbci nuroof retrofit roof system utilizes light gauge 16 ga.
Are there workers in the building that would be at risk if the.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
To 12 ga steel framing installed over the existing roof s framing members to create a sloped plane.
Fortunately recover and retrofit systems like metal over metal or metal over shingles can provide the benefits of a standing seam metal roof without the hassle of replacing the roof entirely.