Aztec Washer Company SQ301BA - Master Flash Square Flashing - (Closed - 5 3/4 in.), #3

The Aztec Washer SQ301BA Standard Master Flash is a medium-to-large size pipe flashing designed for residential and commercial roofs. Constructed from black EPDM, it provides long-term resistance to UV, ozone, and weathering. The flexible sleeve accommodates vibration and pipe movement while marked trim lines allow easy on-site customization. Its soft base conforms to a variety of roof panel profiles and slopes for a secure, watertight seal.

Key Features:

• Black EPDM material for superior weather, UV, and ozone resistance.
• Trim-to-fit sleeve with clear markings for precise installation.
• Flexible sleeve absorbs pipe vibration and expansion/contraction.
• Conforming base adapts to most roof panel types and roof slopes.

• Part number: SQ301BA
• Material: Black EPDM
• Pipe range: 2-3/4 in to 7 in (70–177 mm)
• Base size: 8 in (203 mm)
• Application: Medium-to-large pipe penetrations on residential or commercial roofs
• Temperature resistance: EPDM up to 212 °F (100 °C) continuous, 275 °F (135 °C) intermittent
• Warranty: 35 years (ICC-listed standard Master Flash)

Q: What sealant should be used with SQ301BA?
A: Urethane or silicone sealant is recommended. Avoid petro-chemical-based sealants.

Q: Can SQ301BA be used for both residential and commercial roofs?
A: Yes, it is designed to conform to most roof panel configurations and pitches.

Q: Is SQ301BA suitable for high-temperature applications?
A: EPDM is suitable up to 212 °F (100 °C). For higher-temperature applications, silicone flashings are recommended.

Q: How is SQ301BA installed?
A: Trim the sleeve to pipe size, slide over pipe, form the base to roof, apply sealant, and fasten securely.