The two ply system can be installed over an existing epdm rubber membrane a tpo membrane and a hot tar and gravel roof.
Rubber roof installation over tar and gravel roof.
When an existing commercial building roof needs to be replaced the best system to install is a two ply mb membrane.
Punctures can also occur in a rubber roof but all of these defects can be easily repaired by a roofer skilled in epdm roofs.
Rubber roof installation on flat roofs.
Before the siding goes on a house the rubber roof and flashing is installed then the siding is installed over the flashing.
The traditional roof coating system simply do.
If you are considering replacing an old tar and gravel roof make sure to consult a qualified roofing contractor to explore your best options.
Installing a rubber roof on new construction is always the easiest and cleanest option.
Remove debris like leaves twigs and rocks rake the gravel to get an even surface install a fiberglass base paper over existing gravel roof asphalt roof or epdm rubber roof install new metal edging on the perimeter.
The process is straightforward if you follow the nine simple steps listed below.
It is also possible for small leaks to develop around vent pipes and other openings on a roof especially if the installers are not as familiar with rubber roofs as they should be.
The existing roof does not have to be removed making it cost effective.
Preparing and coating tar and gravel roofs can be extremely difficult with a traditional roof coating approach.
This video is about installing a torch down rubber roof over tar and gravel.