ROOFING TYPES
ROOF SYSTEMS
When it comes to installation, roofs are typically fastened to commercial buildings in four different ways: ballasted, mechanically fastened, fully adhered, or wind-vented. Virtually all roofs sit on top of a layer of insulation that rests between the roof and a metal deck, which is fixed to the structure below.
BallAsted
A ballasted roof system anchors the roof membrane with rock or gravel. Installation is simple and quick and can be done in extreme weather.
The ballasted system is long-proven, protects the membrane from UV rays, and allows for installation on concrete decks.
Mechanically Fastened
A mechanically fastened roof system uses stress plates and screws to fasten the membrane in place.
This system is very adaptable and can be used on varying roof configurations. They can be installed quickly and are cost-effective.
fully adhered
A fully adhered roof system uses a commercial-grade adhesive to glue the roof membrane to the building.
These roofs are known for being aesthetically pleasing and greatly reduce membrane fluttering with fewer seams.
Wind-Vented
A vented roof system uses the power of the wind to hold the roof securely in place. The stronger the wind blows, the tighter the roof holds.
Vented roofs are cost-effective, prevent mold growth, and endure high winds.
EPDM
EPDM is an extremely flexible synthetic rubber roofing membrane (ethylene propylene diene monomer) 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 in a broad variety of widths, ranging from 7.5 feet to fifty feet, and in three thicknesses, 45, 60, and 90 mils. EPDM can be installed either fully adhered, mechanically attached, or ballasted. The membrane is spliced together with specially formulated EPDM tape accessories.
ROOF TYPES
The type of roof you plan to install makes a significant difference in how it performs, what it looks like, and how long it will last. Roofing types differ in energy-efficiency, weather protection, and durability amongst other factors.
TPO/PVC
Short for thermoplastic polyolefin, TPO is a single-ply roofing membrane that offers excellent performance at a cost-effective price. Heat-welded seams provide superior strength. TPO's long-term heat, UV, and natural fungal resistance, plus flexibility without need for plasticizers also make TPO a reliable low-slope roofing system. In the 20+ years that TPO has been in the field, it’s become one the most popular products used for low-slope roofing. Over 1 billion square feet are installed annually, making up over 50% of single-ply roofs being installed today.
PVC is short for polyvinyl chloride. This thermoplastic membrane is similar to TPO in many ways and It has the same long-term heat, UV, and natural fungal resistance as TPO, but uses plasticizers to keep it flexible. One added benefit of PVC is its increased resistance to harmful chemicals which can make it a more appealing choice for some facilities.
KEE
A KEE membrane, short for Ketone Ethylene Ester is a solid, flexible, high-molecular membrane ideal for thermoplastic processing. The monolithic structure of KEE produces a tighter, lighter, woven fabric that remains flexible for decades. KEE membrane manufacturers boast that this product does not lose its plasticizers over time which means it always remains flexible and does not crack.
KEE roofs resist tears and punctures due to its very tightly woven reinforcing mesh. It can withstand severe weather and is the most chemical-resistant membrane on the market today. The military even uses this product to store fuel in huge bags when in combat situations.
METAL
The majority of modern metal roofs are made from corrugated galvanized steel; a steel sheet coated with zinc. Copper, aluminum, stainless steel, and tin are also used in commercial metal roof applications. Coatings can be applied to provide additional waterproofing, anti-rust, and UV protection.
Longevity and durability are chief benefits of a metal roof system. In addition, its lightweight nature allows for quick installation and repair. Metal roofs are environmentally friendly and are available in many different styles and color choices, making this system a good fit when aesthetics are important.
COATING
A roof coating can be the right choice for a commercial property, especially in a time when labor costs and environmental concerns are rising. A coating acts as a barrier to help protect the roof from the elements by increasing UV protection to fight against the sun’s harmful rays and helping to reduce the building’s energy costs.
Roof coatings and sealants are designed to lower the life cycle cost of existing commercial roofing systems. To achieve this, Elevate offers maintenance, repair, and full restoration systems for nearly all substrates including: Metal, Single Ply (EPDM, TPO, PVC, KEE), Modified Bitumen (Smooth and Granulated), and spray polyurethane foam.
COMMERCIAL
SHINGLES
Shingles—both 3 tab and architectural—are often used for steep slope commercial roofing applications due to their low price, as well as their excellent weatherproofing and insulating qualities. Plus, they can be made in almost any color and designer shingles can be designed to mimic the luxurious appearance of more expensive materials such as shakes, tile, and even slate.
