Membrane Roof Over Metal Roof

As described this system has two layers a base layer that is usually nailed to the deck and a granulated top layer that forms the external part of the roof.

Membrane roof over metal roof.

Due to the configuration of the metal roof panels it is first necessary to install an eps expanded polystyrene insulation in between the metal ribs of the roof panels to create a smooth surface to support the 1 1 2 iso polyisocyanurate roof insulation over which the 60mil white tpo roofing membrane is installed. No more seam and fastener problems. While metal roofs can offer lower initial installation costs and protection against fire installing a duro last single ply membrane over your metal roof means. It has an adhesive backing with a peel and stick feature.

However on most measures metal roofing holds its own. This membrane should be labeled high temperature to withstand the surface temperature of the roof on a hot summer day. I m considering putting a steel roof on it. Is it possible to put the steel directly on top of the rubber membrane without doing like 2 x 4 framing.

While standing seam metal roofs installed on steep slopes snap together and allow any water that gets under the metal to be shed by an underlayer low slope standing seam. Hello i am in the process of buying a building that currently has a 30 year old rubber membrane roof. No more cracks and leaks around penetrations. Many single ply membrane roofs rely on the existing metal roof to function as a structural deck for support and attachment of the roof system including board insulation as well as for support of live snow and wind loads and for providing stability to the roof support members.

This will make your home much more temperature efficient and you can save a lot on utilities. As with single ply membranes there are toxicity concerns around some of the materials involved particularly coatings. Excluding water intrusion metal roofs are typically much less susceptible to damage from hail and physical damage than the membrane options. It leaks the roof has a slight pitch maybe 1 12.

The two layers can be joined by heat this is known as torch on membrane or by roofing cement known as cold membrane.