Single Ply Roofing

Total Roof Management specifies and brokers high performance thermoplastic and thermoset membranes in single ply applications. Whether thermoplastic or thermoset, Single Ply Membranes are typically differentiated from each other by the dominant chemicals in the membrane formulation as it is almost solely the chemical formulation that provides the durable and long lasting waterproofing system . . . or not! Single Ply membranes are also identified with acronyms for the dominant chemicals, such as PVC, for membranes primarily formulated with vinyl polymers combined with chlorine, or polyvinyl chloride. TPO membranes are primarily formulated with thermoplastic polyolefin or tri-polymer olefin; EPDM membranes consist of ethylene propylene diene monomer; EIP membranes are ethylene interpolymer or Elvaloy interspersed polymer; PIB membranes are formulated from polyisobutylene, and so on.
There many, many different types of single ply roofing membranes made with different chemicals or chemical blends, yet Total Roof Management typically limits recommendations to the following:
  • ElP Membranes with Dupont Elvaloy KEE (Ketone Ethylene Ester): High performance, thermoplastic membranes very resistant to a wide range of chemicals and harsh environmental conditions, e.g., extreme ultraviolet light and temperature, prolonged or extreme ponding water conditions, exposure to petroleum base products, A/C coolants, jet fuels, restaurant greases and animal fats, solvents, acid rain, etc. Elvaloy membranes were introduced to the commercial roofing market nearly 30 years ago and have an exemplary record of waterproofing success! As a rule, the higher the content of Elvaloy KEE in a membrane the more durable and weather resistant it will be. Additionally, thermoplastic membranes with a high content of Elvaloy KEE are typically 1st generation membranes, which means the original manufacturing formulation has a very successful track record and there is no reason to change or modify the formulation in the manufacturing process.

  • TPO Membranes (Thermoplastic PolyOlefin): Although introduced in the U.S. commercial roofing market in the early to mid 1990s, some TPO membranes are in there 3rd or 4th generation. However, roofing material manufacturers’ R & D purports to have solved the problems that have plagued this membrane. Because the polyolefin chemical is relatively inexpensive, the TPO membranes are the commodity choice in the commercial roofing market today. When low cost has been a major issue, Total Roof Management has recommended and specified this single ply roof system with trouble free results, but we also specify positive slope to drain and carefully consider the specific roof conditions.

  • EPDM Membranes (Ethylene Propylene Diene Monomer): EPDM membranes are best described as rubber, as in a tire or inner-tube. EPDM membranes have been used in roofing applications since the mid 1960s with overall good results, but much better success or results have been achieved in the last 15+ years as the “seaming details” have evolved and improved. EPDM membranes are relatively inexpensive and have superior weathering capabilities. There are caveats when recommending and specifying the system, but where appropriate it can be an excellent, long lasting and cost effective single ply roof system.

Designed and specified to achieve superior strength and elasticity:
  • Multiple ply roof membranes utilizing high performance components, such as polyester membranes, high penetration-index asphalt, neoprene mastics, etc.
  • Combination systems that blend multiple plies of traditional fiberglass with thermoplastic membranes.

Different types of membranes for different applications and roof conditions:
  • Thermoplastic or thermoset membranes in single ply applications.
  • Mechanically attached, fully adhered with hot asphalt or fully adhered with cold process adhesives.

Superior elasticity and reflectivity in a seamless roof system:
  • Cost effective roofing alternatives, particularly in retrofit applications.
  • Preferential tax treatment in retrofit applications.

The ultimate “Cool Roof” installation:
  • Seamless roof systems with insulating values.
  • Different elastomeric coatings for different roof conditions.

When the roof system is part of the building’s aesthetics:
  • Metal roof systems with various dimensional “profiles.”
  • Aesthetically pleasing choice for steep sloped roofs and roof mansards.

Superior waterproofing for steep slope applications:
  • Self-adhering, modified asphalt waterproof membranes for use as underlayments in tile, composition asphalt shingle and metal roof systems.
  • Long lasting waterproof protection, particularly at roof transitions.

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