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Basic Application: Flintlastic SA Modified Bitumen

Important Application Considerations

  • Do not attempt application if ice, snow, moisture or dew are present. Bonding substrates must be clean, dry and free of dust or other inhibitors of proper adhesion. Ambient temperature must be 50ºF or above.

  • Store Flintlastic SA rolls indoors on pallets, protected from the elements. Rolls that are improperly stored or have been warehoused for prolonged periods of time may lose their tack.

  • Do not apply membrane that has been improperly stored, exposed to moisture, or has lost its tack. If the material isn’t bonding, STOP the application!

  • Always remember to put safety first and follow all OSHA safety guidelines with any roofing installation.

  • Substrates must be free of dust, dirt, oil, debris and moisture.

  • Primer, if used, must be applied at the specified rate and must be allowed to thoroughly dry.

  • Work with manageable lengths of MidPly and Cap for the particular job. Where appropriate, cut rolls into 1/3- or 1/2-roll lengths and allow material to relax prior to installation.

  • In cooler weather, a hand-held hot air welding gun can be used to warm the sidelap areas and improve adhesion (prior to application of the FlintBond SBS Modified Bitumen Adhesive).

  • Use caution with the weighted roller at endlap areas. Don’t squeeze out too much adhesive.

  • When applying MidPly (or PlyBase) directly to substrate, design adequate roof ventilation into the system through the use of roof relief vents.

  • Do not mix Flintlastic SA membranes with other types of roof membranes. Flintlastic SA membranes are specifically designed to be applied together. The permanent top film of the MidPly, PlyBase and NailBase cannot receive torching, hot asphalt or other non selfadhering application methods. The Flintlastic SA Cap (or SA Cap FR), PlyBase and MidPly cannot be applied to any surfaces other than as described herein.

  • Do not use cold adhesives with Flintlastic SA membranes other than for flashing details and cap sheet overlaps as described herein.

  • Refer to the CertainTeed Commercial Roof Systems Manual for complete requirements.

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