Protected Membrane Roof Disadvantages

What are the problems and disadvantages of epdm roofing.

Protected membrane roof disadvantages.

When inspecting look signs of the following. Lack of slope or inadequate slope to compensate for deflection of structural elements allows water to pond. Single ply membrane roofing does not have a hard top layer to protect the synthetic rubber from dropped tools gravel or loose screws from being pushed into the rubber membrane. When inspecting look signs of the following.

When insulation is used directly under the roof membrane solar heat does not readily pass through the roofing system which increases the roof s surface temperature. The system is fairly new to the roofing industry. Only about 15 years with a long track record of revisions and improvements due to surface and seam failures. Below is an examination of these commercial roofing types the materials and the advantages and disadvantages of each type of roof.

While epdm roofing can provide adequate protection in many circumstances it is more vulnerable to damage than other materials. The brands we use are duro last firestone and gaf. This kind of damage could create holes in the rubber and insulation and be vulnerable to leaks. The slight cost increase 5 to 15 percent is mitigated by much greater durability than with exposed membrane applications.

Such flat roof systems have some basic disadvantages. When insulation is used directly under the roof membrane solar heat does not readily pass through the roofing system which increases the roof s surface temperature. Repairs are part of maintenance due to shrinkage from prolonged exposure to harmful uv rays causing stress on seams and flashing. Virtually all roof membrane systems may be used in a protected configuration.

While epdm roofing has numerous advantages there are also some important drawbacks you ll want to consider before choosing it for your building. The location of the insulation in a conventional roof system poses a few disadvantages.