Aztec Washer Company SQ801BA - Master Flash Square Flashing - (6 3/4 in. - 12 in.), #8

The Aztec Washer SQ801BA Standard Master Flash is a heavy-duty flashing for very large pipe penetrations. Made from black EPDM, it is engineered to resist ozone, UV, and weathering for long service life. The flexible sleeve, with clearly marked trim lines, allows precise on-site cutting for pipe sizes up to 13-1/2 inches. Its conforming base molds to most roof panel shapes and slopes, ensuring a watertight and durable seal.

Key Features:

• Black EPDM material with excellent UV, ozone, and weather resistance.
• Trim-to-fit sleeve accommodates very large pipe sizes up to 13-1/2 in.
• Flexible design absorbs pipe vibration, expansion, and contraction.
• Large base conforms to roof panel shapes for secure, watertight installation.

• Part number: SQ801BA
• Material: Black EPDM
• Pipe range: 6-3/4 in to 13-1/2 in (171–343 mm)
• Base size: 17 in (431 mm)
• Application: Very large pipe penetrations on 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 SQ801BA?
A: Urethane or silicone sealant is recommended. Avoid petro-chemical-based sealants.

Q: Can SQ801BA be used for very large roof penetrations?
A: Yes, it is designed for pipe sizes up to 13-1/2 in (343 mm).

Q: Is SQ801BA suitable for high-heat applications?
A: EPDM is rated up to 212 °F (100 °C). For higher temperatures, silicone flashings are recommended.

Q: How is SQ801BA installed?
A: Trim the sleeve to the required pipe size, slide flashing over the pipe, form the base to the roof surface, apply sealant, and fasten securely.