Parapro Roof on Power Plant in OK

Parapro 123 Flashing & Roof Membrane 

Liquid efficiency. Siplast standards.

One of the most successful commercial product innovations of the last century occurred in the 1930s when polymethyl methacrylate resins, commonly known as PMMA, were first synthesized. Practical applications for the new resin, which included everything from aircraft windshields to dentures, soon followed. The material proved to be exceptionally durable, and the use of PMMA grew rapidly. But in spite of its outstanding performance, the material was too rigid for use in waterproofing applications – until the 1970s.

That’s when a PMMA formulation was developed that, once cured, was resilient rather than rigid. Today, Parapro Roof and Flashing Membrane systems offer all the benefits of PMMA technology and liquid application in products that meet the performance standards of Siplast.

Advantages

Jobs with difficult access, tight clearances, odd-shaped penetrations, and exposure to substances that can adversely affect conventional roofing materials can be a challenge for even the best traditional roofing plies. In such cases, a liquid-applied Parapro System is an excellent option. Parapro Roof Membrane can be used in conjunction with a Siplast SBS-modified bitumen base ply or as a stand-alone alternative to roofing sheets. 
Roof Membrane Resin

Parapro is ideal for areas where flame-free application is required, water doesn’t drain quickly or completely, or areas requiring protection against many conditions and substances that can negatively affect more traditional roofing products, including:

  • Vegetable oils and animal fats *
  • Environmental contaminants
  • Foot traffic **
  • UV

In addition to performance advantages, the science of PMMA gives Parapro other numerous advantages including significantly faster cure times than other liquid applied, layered polyurethane systems. Parapro resins are low VOC, and unlike many polyurethane materials, are formulated without solvents and isocyanates. The Parapro waterproofing layer is resistant to rainwater wash off in 30 minutes, and is ready for foot traffic in 2 hours. Parapro offers great inter-layer bond strength and durability against dynamic/static load because of its PMMA chemistry.

*Siplast warranties and guarantees do not provide coverage against exposure to chemicals, including animal fats or vegetable oils. Refer to siplast.com for more information on warranty and guarantee coverage and restrictions.

**Siplast warranties and guarantees do not provide coverage against foot traffic. Refer to siplast.com for more information on warranty and guarantee coverage and restrictions. 

Parapro 123 Flashing Resin over roof details

Parapro 123 Flashing

Parapro 123 Flashing is an ideal solution for difficult flashing situations, including equipment supports, I-beams, H-beams, stanchions, conduits, and unusual penetrations. It is a layered application consisting of a base and top coat of catalyzed, thixotropic PMMA resin encapsulating a layer of polyester fleece. Parapro 123 Flashing can be installed between the plies of Siplast SBS-modified bitumen roof systems, or on top of the Siplast Paradiene 30 finish ply. In addition, Parapro adheres to many common construction materials, including plastics, concrete, and steel. The finished application is fully reinforced and seamless.
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Parapro Roof Membrane Resin

Parapro Roof Membrane

The Parapro Roof Membrane System is a seamless, fully reinforced, layered application consisting of one coat of primer (if required) and a waterproofing membrane comprised of two resin waterproofing coats that encapsulate a polyester fleece fabric reinforcement. The completed high-mil thickness application provides a durable, resilient waterproofing membrane.

The Parapro Roof Membrane System can be surfaced with aggregate, and is available in light gray and white. White Parapro Roof Membrane is California Title 24 Part 6 compliant, and qualifies for LEED certification points as defined by the United States Green Building Council. Optional color finishes can be applied to the finished Parapro Roof Membrane, simplifying the application and maintenance of rooftop markings.

Parapro Roof Membrane Systems can be specified for vegetated roofing applications. The built-in capabilities of Parapro provide protection against roots and make it an excellent option for both extensive and intensive green assemblies.

SEE THE PARAPRO ROOF MEMBRANE SYSTEM

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