Aztec Washer Company RD601BE - Universal Master Flash Round Flashing - (5 in. - 9 in.)

The Aztec Washer RD601BA Extreme Angle Master Flash is a large flashing designed for steep roof applications with pitches from 35° to 65°. Manufactured from black EPDM, it provides strong resistance to UV, ozone, and weathering. The built-in 40° pitch allows the flashing to adapt to extreme roof angles, while the flexible trim-to-fit sleeve seals pipe penetrations from 5 in to 9 in. The wide 12-1/2 in base ensures a secure and watertight installation.

Key Features:

• Black EPDM compound with excellent resistance to UV, ozone, and weathering.
• Built-in 40° pitch for steep roof slopes from 35° to 65°.
• Flexible sleeve with trim-to-fit markings accommodates 5 in to 9 in pipes.
• Large 12-1/2 in base molds securely to roof panels.

• Part number: RD601BA
• Material: Black EPDM
• Pipe range: 5 in to 9 in (127–229 mm)
• Base size: 12-1/2 in (318 mm)
• Application: Large pipe penetrations on extreme pitch metal roofs
• Temperature guidance: EPDM up to 212 °F (100 °C) continuous, 275 °F (135 °C) intermittent
• Warranty: 20 years (EPDM)

Q: What type of sealant should be used with RD601BA?
A: Use urethane or silicone sealant. Avoid petro-chemical-based sealants.

Q: What roof pitch is RD601BA designed for?
A: It is engineered for steep slopes between 35° and 65°.

Q: What pipe sizes can RD601BA handle?
A: It fits pipes from 5 in to 9 in (127–229 mm).

Q: Is RD601BA suitable for high-temperature applications?
A: EPDM is suitable up to 212 °F (100 °C). For higher-heat applications, silicone versions are recommended.