Aztec Washer Company RD801BE - Universal Master Flash Round Flashing - (6 in. - 13 in.)

The Aztec Washer RD801BA Extreme Angle Master Flash is a heavy-duty flashing designed for large pipe penetrations on steep metal roofs with slopes from 35° to 65°. Made from black EPDM, it provides excellent resistance to UV, ozone, and weathering. The built-in 40° pitch allows the flashing to align properly on steep roof angles, while the flexible, trim-to-fit sleeve ensures a watertight seal for pipes from 6 in to 13 in. Its wide 16-1/2 in base provides secure coverage for larger installations.

Key Features:

• Black EPDM material with resistance to UV, ozone, and weathering.
• Built-in 40° pitch adapts to extreme roof slopes (35°–65°).
• Trim-to-fit sleeve handles larger pipes from 6 in to 13 in.
• Large 16-1/2 in base provides stable, watertight installation.

• Part number: RD801BA
• Material: Black EPDM
• Pipe range: 6 in to 13 in (152–330 mm)
• Base size: 16-1/2 in (419 mm)
• Application: Large pipe penetrations on steep slope metal roofs
• Temperature guidance: EPDM up to 212 °F (100 °C) continuous, 275 °F (135 °C) intermittent
• Warranty: 20 years (EPDM)

Q: What sealant should be used with RD801BA?
A: Urethane or silicone sealant is recommended. Avoid petro-chemical-based sealants.

Q: What roof pitch is RD801BA designed for?
A: It is designed for steep slopes between 35° and 65°.

Q: What pipe sizes can RD801BA handle?
A: It accommodates pipe diameters from 6 in to 13 in (152–330 mm).

Q: Is RD801BA suitable for high-heat applications?
A: EPDM is suitable up to 212 °F (100 °C). For hotter installations, silicone versions are recommended.