Approved Mastics for Steep-Slope Applications

Polyglass Mastics Engineered for Performance and Code Compliance

Guidelines for Approved Mastics When Installing Polyglass Polystick Underlayments in Florida

To ensure long-term system performance, Polyglass provides the following guidelines regarding the use of approved mastics with Polystick underlayments in steep-slope applications. Polyglass mandates that one of the approved mastics must be used for all applicable detailing areas, including but not limited to end laps, penetrations and flashings to guarantee a warranted installation.

Polyglass Approved Mastics for Steep-Slope Applications
PG 500 – Modified Flashing Cement
PolyPlus® 50 – Premium Modified Wet/Dry Flashing Cement

PG 500 or PolyPlus 50 are the required mastics on all Polyglass steep-slope underlayment projects, including Polystick TU Plus and Polystick TU Max installation systems.

APPROVALS & TECHNICAL DATA

  • General Steep-Slope Installation Details PDF
  • Miami-Dade Underlayment NOA – See page 22 PDF
  • FPA FL5259-R50 HVHZ – See page 10, Section 6.1.2 PDF
  • FPA FL5259-R50 NON-HVHZ – See page 14, Section 6.1.2 PDF
  • Polyglass Technical Bulletin – Approved Mastics PDF

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