Aztec Washer Company RD601GG - Universal Master Flash Round Flashing - (5 in. - 9 in.)

The Aztec Washer RD601GA Extreme Angle Master Flash is a large flashing designed for steep metal roof slopes between 35° and 65°. Constructed from gray EPDM, it provides long-term resistance to UV, ozone, and weathering while maintaining flexibility to handle pipe movement. The built-in 40° pitch ensures proper seating on extreme roof angles, while the trim-to-fit sleeve provides a watertight seal for pipe penetrations from 5 in to 9 in. Its wide 12-1/2 in base molds to roof profiles for a secure installation.

Key Features:

• Gray EPDM compound with resistance to UV, ozone, and weathering.
• Built-in 40° pitch adapts to steep roof slopes (35°–65°).
• Trim-to-fit sleeve accommodates pipe sizes from 5 in to 9 in.
• 12-1/2 in base provides a secure, watertight fit.

• Part number: RD601GA
• Material: Gray EPDM
• Pipe range: 5 in to 9 in (127–229 mm)
• Base size: 12-1/2 in (318 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 RD601GA?
A: Use urethane or silicone sealant. Avoid petro-chemical-based sealants.

Q: What roof pitch is RD601GA designed for?
A: It is designed for steep slopes between 35° and 65°.

Q: What pipe sizes can RD601GA handle?
A: It fits pipe diameters from 5 in to 9 in (127–229 mm).

Q: Is RD601GA suitable for high-temperature applications?
A: EPDM is suitable up to 212 °F (100 °C). For hotter conditions, silicone versions are recommended.