Then pieces of the membrane are cut and carefully glued around the vents creating a watertight seam.
Rubber roof over metal.
If you are thinking of replacing a leaking metal roof with a rubber one an alternate solution might be to cover it with a layer of insulating foam and re roof it with another new metal roof.
Flashing is metal trim that fits over joints where two sections of roof meet.
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.
Once the rubber membrane sometimes called epdm is stretched over the roof and holes cut for the vents the rubber is next folded over the roof edge and fastened with screws.
If you do a fully adhered tpo system your still using glue rollers and brushes just like on the epdm.
Metal roofing varies greatly in price however and depending on your situation might be even more expensive than a rubber roof.
Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it.
It helps direct water away from the meeting points and keeps the roofing dry.
Sometimes the most economical way to reseal a metal roof is to apply a special soybean based coating with fiberglass webbing as needed.
The only tools that separate the tpo roof from a rubber roof is in fact the welders and generators.
Mobile home roof over with single ply tpo white single ply tpo membranes are a very popular choice for mobile homes with flat or low slope roofs.
Doing a roof over adds an extra layer of protection above the original.
Advantages of metal roofs over shingles.
They also need to be repaired by a trained professional.
Still need knives and scissors for cutting.
Installing 4 iso insulation with firestone epdm rubber membrane over old metal roof.
Hammers to pound roof nails into edge metal.
Asphalt roofs are even more prone to this than other types like pto metal or rubber roofs.
Alternatives to rubber roofs.
Still need screw guns for installing fasteners.
Mobile home roof overs for flat roofs typically involve metal or rubber or pto.