The new EPDM single ply rubber membrane roofing for flat roofs is fast becoming the number one choice for homeowners, architects and roofers alike. There is also the Permaweld roofing system which is a PVC membrane.
Some of the advantages of choosing the single ply rubber membrane roofing systems for flat roofs are:
These white rubber membranes reflect heat, and when they are combined with Webcon, which is an approved insulation product, it increases the energy saving for your air conditioning and heating systems.
These rubber membranes are guaranteed to be leak proof, and there is no need to use a sealant coat because these membranes have a very high resistant tolerance to the elements.
These rubber membranes are very flexible and there is no stress failure due to structural movement, unlike the conventional built up roofing, plus they are guaranteed not to crack or rupture under extreme temperature conditions.
They will remain flexible even in temperatures as low as 75 degrees F, and can withstand temperatures as high as 300 degrees F. These rubber membranes do not have any oxidation problems and they are not affected by natural weather elements such as sun, rain, ice or snow and hail.
Also they cost much less to install than the regular roofing. The Permaweld Roofing System constitutes a singleply, tear resistant, heat weldable, white colored PVC membrane system.
Although this rubber membrane is very tough it is also very pliable and has an excellent tear and chemical resistance and also comes with a watertight and material warranty. This membrane is made of a bright white color, and can reflect over 80% of the ultra violet radiation from the sun and is a certified Energy Star product.
These rubber membranes can be fastened in different ways:
. There is the Mechanically Fastened System where traditional installation is required for materials like wood, gypsum, concrete or metal and concrete decks of the light weight variety. There is no need for the use of mastic or adhesive for this type of installation because the thermal welding & in-seam fastening ensures you get a field fabricated continuous type membrane.
. Then there is the Fully Adhered System (which means wind uplift resistance) where direct adhesion is required for installation to difficult decks including tactum, gypsum and even concrete etc. This type of installation would require the use of a water based adhesive or a solvent based adhesive for proper bonding to be achieved. It is to be note that low rise foam from Olybond works great as well. This type of installation will drastically reduce the cost of labor and materials.
. Thers is also the Vacuum Fastening System using a Perma-Vac for roof decks ( monolithic ones ) such as concrete or gypsum for problems such as fasteners which can increase costs.
Perma-Vac vents can be found on top the roof and are designed especially to operate as a vacuum does. The suction very easily causes the system to fasten, and holds the rubber membrane securely against the roof. Perma-Vac can also be very helpful when ventilation is required on a single ply rubber membrane roofing system.
