Aztec Washer Company SQ951GA - Master Flash Square Flashing - Maxi (9 1/2 in. - 20 1/2 in.)

The Aztec Washer SQ951GA Standard Master Flash is the largest gray EPDM flashing in the series, designed for oversized pipe penetrations. It provides excellent resistance to ozone, UV, and weathering, making it ideal for demanding residential, commercial, and industrial installations. The oversized sleeve features trim-to-fit markings for accurate field cutting and accommodates pipes up to 28-1/2 inches. Its wide base conforms to roof profiles and slopes for a secure, watertight seal.

Key Features:

• Gray EPDM material engineered for long-term resistance to UV, ozone, and weathering.
• Oversized trim-to-fit sleeve accommodates pipes up to 28-1/2 inches.
• Flexible sleeve absorbs vibration, thermal expansion, and contraction.
• Large base molds securely to roof profiles and varying roof pitches.

• Part number: SQ951GA
• Material: Gray EPDM
• Pipe range: 9-1/2 in to 20-1/2 in (305–724 mm)
• Base size: 34-1/4 in (870 mm)
• Application: Oversized pipe penetrations for residential, commercial, and industrial roofs
• Temperature guidance: EPDM up to 212 °F (100 °C) continuous, 275 °F (135 °C) intermittent
• Warranty: 35 years (ICC-listed Standard Master Flash)

Q: What type of sealant should be used with SQ951GA?
A: Use urethane or silicone sealant. Avoid petro-chemical-based sealants.

Q: What size pipes can SQ951GA handle?
A: It is designed for oversized pipes ranging from 9-1/2 in to 20-1/2 in (305–724 mm).

Q: Is SQ951GA suitable for high-temperature installations?
A: EPDM is rated up to 212 °F (100 °C). For hotter applications, silicone flashings are recommended.

Q: How is SQ951GA installed?
A: Trim the sleeve to the pipe size, slide flashing over the pipe, form the base to the roof surface, apply sealant, and fasten securely.