Aztec Washer Company RS301BA - Residential Master Flash - Black

The Aztec Washer RS301BA Residential Master Flash is designed for larger residential pipe flashing applications. Made from durable black EPDM, it incorporates fire-retardant agents for safety and is listed for use with type “B” vents. With its built-in 20° pitch, the flashing adapts to roof slopes up to 45°. The environmentally safe, lead-free aluminum base ensures a reliable seal against weather exposure, making it a dependable choice for residential installations.

Key Features:

• Constructed from black EPDM with self-extinguishing, fire-retardant properties.
• Built-in 20° pitch adapts to residential roof slopes up to 45°.
• Lead-free aluminum base provides a secure and safe installation.
• Enhanced resistance to UV, ozone, and harsh weather conditions.

• Part number: RS301BA
• Material: Black EPDM with aluminum base
• Pipe range: 11 in to 18-1/2 in (279–469 mm)
• Base size: 35 in x 35 in (889 x 889 mm)
• Temperature resistance: EPDM up to 212 °F (100 °C) continuous, 275 °F (135 °C) intermittent
• Warranty: 20 years (EPDM)

Q: What sealant should be used with RS301BA?
A: Avoid petro-chemical-based sealants. Urethane or silicone sealant is typically recommended.

Q: Can RS301BA be used on steep residential roofs?
A: Yes, the built-in 20° pitch allows installation on roof slopes up to 45°.

Q: Is RS301BA suitable for use with chimneys or stove pipes?
A: For applications above 212 °F (100 °C), a silicone flashing should be used instead of EPDM.

Q: What makes RS301BA safe for residential applications?
A: It includes a fire-retardant EPDM compound, is self-extinguishing, and uses a safe aluminum base.