Aztec Washer Company SQ501GA - Master Flash Square Flashing - (4 in. - 8 1/4 in.)

The Aztec Washer SQ501GA Standard Master Flash is a large-size roof flashing made from gray EPDM for sealing bigger pipe penetrations. The flexible, trim-to-fit sleeve accommodates vibration and thermal expansion, and the soft base conforms to most roof panel profiles and slopes for a watertight seal.

Key Features:

• Gray EPDM compound engineered for long-term resistance to UV, ozone, and weathering.
• Large trim-to-fit sleeve with clear size markings for accurate field sizing.
• Flexible design absorbs vibration and pipe expansion/contraction.
• Conforming base adapts to common roof panel profiles and pitches.

• Part number: SQ501GA
• Material: Gray EPDM
• Pipe range: 4 in to 8-1/4 in (101–209 mm)
• Base size: 11 in (279 mm)
• Temperature guidance: EPDM up to 212 °F (100 °C) continuous / 275 °F (135 °C) intermittent
• Application: Large pipe penetrations on residential or commercial roofs

Q: What sealant should be used with SQ501GA?
A: Use urethane or silicone sealant. Avoid petro-chemical-based sealants.

Q: Can SQ501GA be used on both residential and commercial roofs?
A: Yes, the base is designed to mold to most panel configurations and typical roof slopes.

Q: Is SQ501GA suitable for higher-heat applications?
A: EPDM is suitable up to 212 °F (100 °C) continuous. For hotter applications, use a silicone flashing.

Q: How is SQ501GA installed?
A: Trim the sleeve to the required pipe size, slide over the pipe, form the base to the roof surface, apply sealant, and fasten.