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. 

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.

Quality


As part of our manufacturing process for Siplast Parapro resins, stringent quality control tests are performed on every batch of material we produce to ensure that all Parapro products meet key performance criteria. In addition, Siplast Research and Development continually studies issues related to application, quality control and long-term performance.

Siplast is committed to placing the same emphasis on quality, long-term liquid-applied roofing and flashing systems that has built our strong reputation as an industry leader and innovator in advanced SBS-modified bitumen roofing and waterproofing systems.

Parapro Products

Parapro resins are each formulated to meet the demands of specific applications, from flashing and roofing to vegetated roof waterproofing.
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.
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.

Application


We recognize that providing quality products does not guarantee a successful job. So Siplast Field Technical Representatives are available for our network of certified independent contractors. Parapro Systems can be installed only by Siplast Select Contractors. These independent professionals have met the qualifications of one of the toughest contractor certification program in the industry – ours. Their  skill and dedication have demonstrated time and again that they regard themselves as members of a team dedicated to installing great roofing and waterproofing systems.

Parapro Roof Membrane Resin application video series

Watch these 7 videos for step-by-step instructions for Parapro Roof Membrane application.
Parapro Roof Membrane Application: Step 1. Prepare penetrations.

Parapro Roof Membrane Application: Step 1. Prepare penetrations.

In step one of Parapro Roof Membrane installations, learn how to prepare penetrations. Find step two in our Video Library.

Parapro Roof Membrane Application Series: Step 2. Dry Fit Pro Fleece.

Parapro Roof Membrane Application Series: Step 2. Dry Fit Pro Fleece.

In step two of Parapro Roof Membrane installations, learn how to dry-fit fleece for penetrations. Find step three in our Video Library.

Parapro Roof Membrane Application Series: Step 3. Check Temperatures and Catalyze Resin.

Parapro Roof Membrane Application Series: Step 3. Check Temperatures and Catalyze Resin.

In step three of Parapro Roof Membrane installations, learn how to catalyze flashing resin. Find step four in our Video Library.

Parapro Roof Membrane Application Series: Step 4. Apply Parapro Flashing.

Parapro Roof Membrane Application Series: Step 4. Apply Parapro Flashing.

In step four of Parapro Roof Membrane installations, learn how to flash penetrations with Parapro. Find step five in our Video Library.

Parapro Roof Membrane Application Series: Step 5. Apply Parapro Flashing to corners.

Parapro Roof Membrane Application Series: Step 5. Apply Parapro Flashing to corners.

In step five of Parapro Roof Membrane installations, learn how to flash corner details with Parapro. Find step six in our Video Library.

Parapro Roof Membrane Application Series: Step 6. Catalyze Parapro Roof Membrane Resin.

Parapro Roof Membrane Application Series: Step 6. Catalyze Parapro Roof Membrane Resin.

In step six of Parapro Roof Membrane installations, learn how to catalyze roof membrane resin. Find step seven in our Video Library.

Parapro Roof Membrane Application Series: Step 7. Apply Parapro Roof Membrane.

Parapro Roof Membrane Application Series: Step 7. Apply Parapro Roof Membrane.

Finally, in step seven of Parapro Roof Membrane installations, learn how to apply resin to the field of the roof and embed Pro Fleece.

Parapro 123 Flashing Resin

Watch these 9 videos for step-by-step instructions for Parapro 123 Flashing application.
Siplast Parapro Flashing Application: 1. Prepare penetration by grinding and wiping with Pro Prep.

Siplast Parapro Flashing Application: 1. Prepare penetration by grinding and wiping with Pro Prep.

In step one of Parapro flashing inter-ply applications, learn how to clean and prepare penetrations. Find step two in our Video Library.

Parapro Flashing Application: 2. Check ambient and substrate temperatures.

Parapro Flashing Application: 2. Check ambient and substrate temperatures.

In step two of Parapro flashing inter-ply applications, check substrate temperatures for suitability. Find step three in our Video Library.

Parapro Flashing Application: 3. Dry fit Pro Fleece.

Parapro Flashing Application: 3. Dry fit Pro Fleece.

In step three of Parapro flashing inter-ply applications, learn how to dry-fit fleece for penetrations. Find step four in our Video Library.

Parapro Flashing Application: 4. Mask off the termination of the flashing.

Parapro Flashing Application: 4. Mask off the termination of the flashing.

In step four of Parapro flashing inter-ply applications, identify a flashing perimeter with tape. Find step five in our Video Library.

Parapro Flashing Application: 5. Catalyze Parapro Flashing Resin.

Parapro Flashing Application: 5. Catalyze Parapro Flashing Resin.

In step five of Parapro flashing inter-ply applications, learn how to catalyze resin. Find step six in our Video Library.

Parapro Flashing Application: 6. Apply Parapro Flashing.

Parapro Flashing Application: 6. Apply Parapro Flashing.

In step six of Parapro flashing inter-ply applications, learn how to apply resin and embed Pro Fleece. Find step seven in our Video Library.

Parapro Flashing Application: 7. Apply base ply material.

Parapro Flashing Application: 7. Apply base ply material.

In step seven of Parapro 123 Flashing inter-ply applications, learn how to install a base ply. Find step eight in our Video Library.

Parapro Flashing Application: 8. Apply finish ply.

Parapro Flashing Application: 8. Apply finish ply.

In step eight of Parapro flashing inter-ply applications, learn how to install a finish ply. Find step nine in our Video Library.

Parapro Flashing Application: 9. Apply sealant.

Parapro Flashing Application: 9. Apply sealant.

Finally, in step nine of Parapro flashing inter-ply applications, learn how to apply a sealant to cover any gaps.

Want to watch more Parapro Flashing videos? Click here

Guarantee


Siplast offers a written guarantee on all approved Parapro projects when Siplast materials are applied by a Siplast Select Contractor, provided all pre- and post-job procedures have been followed. Contact your Siplast Representative for a full explanation of the Siplast Parapro Guarantee. 

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