Aztec Washer Company RF101BP - Retrofit Master Flash (7/8'' - 4")

Aztec washer rf101bp is a wraparound, split-boot retrofit flashing for situations where you can’t slide a boot over the top of the pipe due to obstructions or existing equipment. made from uv- and ozone-resistant black epdm, it conforms to common panel profiles and roof pitches. clearly marked cut lines simplify sizing, and snap-on fasteners make retrofit installs quick; a collar channel accepts a zip tie to finish the seal. typical uses include roof and sidewall penetrations on metal, stucco, drywall, and corrugated panels.

Key Features:

• retrofit split design wraps around existing pipes and conduits; no disassembly required
• black epdm compound engineered for weathering resistance (uv/ozone)
• marked sizing rings for quick, accurate trimming on site
• snap-on fasteners included; collar accepts a zip tie to complete the seal

• Product line: standard retrofit master flash
• Part number: rf101bp
• Size: #1 (retrofit)
• Material: epdm, black
• Pipe range: 7/8 in to 4 in (22–101 mm)
• Base size: 8-3/16 in (205 mm)
• Install hardware: snap-on fasteners included; collar supports zip tie
• Typical applications: roof and sidewall penetrations on metal, stucco, drywall, corrugated siding
• Temperature guidance (epdm general): continuous to about +212 °f (+100 °c), intermittent to about +275 °f (+135 °c)

Q: why choose a retrofit boot instead of a standard boot?
A: the split, wraparound design with snap fasteners lets you install around existing pipes where you can’t slide a boot over the top.

Q: do i need a clamp at the collar?
A: the seal is by compression; many installers add a zip tie at the collar. to seal the base, avoid petro-chemical-based sealants; urethane or silicone caulk is typically fine.

Q: what pipe sizes does rf101bp cover?
A: 7/8 in to 4 in (22–101 mm).

Q: when should i use silicone instead of epdm?
A: choose silicone for sustained higher temperatures above epdm’s typical range; see material specs for details.