Waterproofing Systems (Roofs): Liquid Membrane Flashing Systems

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Waterproofing Systems (Roofs): Liquid Membrane Flashing Systems

Accepted Materials for a RoofStar Guarantee

The tables and products shown below provide basic material data and links to more information about the materials, including manufacturers' published Technical Data sheets, but this information is not intended for use as a comparison of material performance or quality. It is the sole responsibility of the Design Authority to assess the performance capability and material suitability for specific design requirements.

The materials listed are those which have been accepted by the RoofStar Guarantee Program (RCABC Guarantee Corp., or RGC) for use in a roof or grade-level waterproofing system that will qualify for a RoofStar Guarantee. The acceptance of these materials by the RGC (RoofStar Guarantee Program) in no way reflects on the quality or performance of other materials not listed.

The materials and guideline specifications are listed under the name of the manufacturer and/or supplier of the primary membrane material, with the exception of BUR membranes for which the reader will find RoofStar Guarantee Program guidelines on traditional built-up roofing systems (BUR) incorporating organic and glass felt primary membranes.

Note to Reader
Liquid membrane flashing systems are manufactured from various bituminous and non-bituminous materials. These manufactured proprietary flashing systems are specifically designed for use to flash unusual roof penetration shapes or roof details that are difficult to flash with traditional membranes.
Liquid membrane flashings are available as one or two part component systems that require reinforcement scrims for strength. To ensure quality installation, manufacturers’ proprietary application instructions must be strictly followed.

2-Part Component Systems
For use with polyester reinforcement only. These systems may be used on or within 200 mm (8") of the water plane.
Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program
Manufacturer Product / System Name Description / Features Applicator Training Special Notes
Firestone Building Products Ultraflash Organo-silane compound paired with polyester scrim See Manufacturer Refer to Technical Data Sheet
Johns Manville Corporation PermaFlash MBR® Flashing Cement used with polyester reinforcement See Manufacturer Refer to Technical Data Sheet
Siplast Parapro 123 Flashing Resin 2-part resin available in summer and winter grades See Manufacturer Refer to Technical Data Sheet
Soprema Inc. Alsan RS System 2-part liquid paired with Alsan RS Fleece See Manufacturer Refer to Technical Data Sheet



Single-component Systems
(NOTE: these flashing systems have limited application within the RoofStar Guarantee Program, and may be used on upstand angles, support junctions and joints that are typically more than 200 mm (8") above water plane. These materials may also be used as a coating on galvanized flashings and other strip-in flashings requiring a coating (see RoofStar Guarantee Standards for SBS-modified Bitumen Roof Assemblies, 12.4 Strip-in Flashings)
Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program
Manufacturer Product / System Name Description / Features Applicator Training Special Notes
IKO Industries Ltd. IKO MS Detail single-component flashing See Manufacturer See notations on Material page
Polyglass USA, Inc. Polyflash 1C single-component moisture-cured See Manufacturer To be used only with Polyglass membranes
Soprema Inc. Alsan Flashing Single component polyurethane/bitumen coating See Manufacturer See notations on Material page


Accepted Materials


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