The term “Single-Ply” blankets a wide range of products, including but not limited to; EPDM, TPO, and PVC roof systems. While these products tend to be associated more with commercial roofing, they are still used for a wide variety of residential needs.
In all circumstances Single-Ply Membrane should be directly installed to solid decking or approved insulation board.
- Flat Roofs
- Low Sloped Roofs
- Parapet Walls
- Various Flashings
- Flat Roofs
- Low Sloped Roofs
- Exterior Decks
- Directly Exposed Or Under A Floating Deck System
- Crickets or Dead Valleys
What is EPDM?
“EPDM is an extremely durable synthetic rubber roofing membrane (ethylene propylene diene terpolymer) widely used in low-slope buildings in the United States and worldwide. Its two primary ingredients, ethylene and propylene, are derived from oil and natural gas. EPDM is available in both black and white, and is sold a broad variety of widths, ranging from 7.5 feet to fifty feet, and in two thicknesses, 45 and 60 mils. EPDM can be installed either fully adhered, mechanically attached or ballasted, with the seams of the roofing system sealed with liquid adhesives or specially formulated tape.”
-EPDM Roofing Association
COST – EPDM Rubber is one of the most cost efficient flat roofs systems on the market.
ENVIRONMENTALLY FRIENDLY – EPDM rubber roofs are made of recycled materials, making them environmentally friendly.
LIGHTWEIGHT & FLEXIBLE – Fully adhered systems are suitable for contoured roofs, roofs with irregular shape and any roof with limited load bearing capacity because they are lightweight and flexible.
HIGH WIND RATING – Fully adhered roof systems also have a high wind uplift performance rating, which makes them a good choice for tall buildings or high-wind areas. Every square foot of membrane is bonded to the insulations in fully adhered roof systems, which means they have the least amount of membrane fluttering.
TIME TESTED – Fully adhered roofs appeared in the 1960s and have become a time-proven method in the process of roof installation. Today, millions of square feet of fully adhered single-ply roofing systems have been installed. Many commercial building owners opt to have their roofs installed to the underlying substrate with this method due to fully adhered roofs’ performance value and track record of longevity, as seen in many single-ply roofs today.
Performance value, longevity, and long-term costs are all driving concerns for building architects and commercial construction professionals. Recent technological advances in application mean fully adhered roof systems are becoming the system of choice for many roof replacement applications across the country.
HOW CAN THE PERFORMANCE OF EPDM BE GAUGED OVER THE LAST 40 YEARS?
HOW DOES THE PERFORMANCE OF EPDM MEMBRANE COMPARE TO BUILT-UP ROOFING?
WHAT IS THE MAXIMUM SIZE SHEET FOR EPDM MEMBRANE?
WHAT IS THE DIFFERENCE BETWEEN BLACK EPDM AND WHITE EPDM MEMBRANE?
DOES EPDM REQUIRE SYSTEMATIC MAINTENANCE OR ADDITIONAL COATINGS OR TREATMENT TO ACHIEVE ITS LIFE EXPECTANCY?
ARE TEMPERATURE LIMITATIONS ASSOCIATED WITH THE INSTALLATION OF EPDM ROOFING SYSTEM?
IS THE PERFORMANCE OF THE EPDM MEMBRANE ADVERSELY AFFECTED GEOGRAPHICALLY DUE TO TEMPERATURE EXTREMES?
IS EPDM ENVIRONMENTALLY BENEFICIAL?
WHAT IS THE EXPECTED LONGEVITY OF EPDM MEMBRANE?
CAN EPDM BE COATED OR PAINTED?
CAN EPDM BE USED IN INSTALLATIONS OTHER THAN ROOFING?
GENERALLY SPEAKING, IS AN EPDM SINGLE-PLY MEMBRANE ROOFING SYSTEM COST EFFECTIVE?
WOULD REPAIRS TO AN EPDM MEMBRANE BE IMPAIRED BY AGING?
Section Credits-Ellen Thorp, EPDM Roofing Association
What is TPO?
“Thermoplastic Polyolefin (TPO) is a single-ply reflective roofing membrane made from polyprophylene and ethylene-propylene rubber polymerized together. It is typically installed in a fully adhered or mechanically attached system, allowing the white membrane to remain exposed throughout the life of the roof. The first sheet of TPO roofing membrane was installed in 1989 and since then millions of square meters of TPO has been installed worldwide.”
-Firestone Building Products
Cooling Degree Days
TPO roofing membranes are highly attractive in regions with more cooling degree days – when cooling equipment is used – than heating degree days. TPO membranes reflect UV radiation keeping the surface of the roof and the building cool during summer months. This helps reduce cooling costs, and also decreases the amount of carbon emissions.
Reflectivity & Sustainability
Many companies and organizations are thrilled with the environmental benefits of TPO membranes. The Earth Rangers Centre (ERC) in Woodbridge, Ontario installed an UltraPly™ TPO roof on their office building, which is currently one of the most energy efficient buildings in Canada. Operating at less than 9kWh per square foot, and using nearly 90% less energy than other buildings of its size, TPO provided the reflective roof that works in conjunction with skylights and solar panels that helped ERC reach that impressive level of sustainability.
- TPO is the fastest growing commercial roofing membrane on the market today, having grown from 23% to 41% in the U.S. in seven years, as of 2013.
- Since the installation of the first UltraPly TPO roofs in 1996, nearly 4,000,000,000 square feet of UltraPly TPO has been installed worldwide.
- TPO is 100% recyclable