Portals Plus 22025, Alumi-Flash Standard Base w/212 Black Cap

The Portals Plus 22025 Alumi-Flash Standard Base with C-212 Black Cap is a factory-matched flashing system for multiple roof penetrations. The standard base is made from .060" spun aluminum, 4" high, with a 14" base diameter and an 8" collared opening rolled with two beaded sealing rings. The C-212 cap is a molded EPDM component that attaches to the double beads using the stainless-steel Snaplock clamp included with the cap. Together they create a mechanical, weather-tight pressure seal between the cap and base.

Key features:

• .060" spun aluminum base, 4" high, 14" base diameter with 8" collared opening and two beaded sealing rings.
• C-212 EPDM cap designed for multi-pipe applications.
• Stainless-steel Snaplock clamp ensures a positive mechanical seal between the cap and base.
• Designed for reliable rooftop flashing where multiple penetrations pass through a single base.

• SKU: 22025 (POR-22025)
• Product type: Alumi-Flash Standard Base with C-212 Black EPDM Cap
• Base construction: .060" spun aluminum, 4" tall, 14" base diameter, 8" collared opening, two beaded sealing rings
• Cap: C-212 molded EPDM cap with stainless-steel Snaplock clamp
• Use: Flashing system for multiple roof penetrations using a single standard base and EPDM cap

• Install and roof-in the spun aluminum base per Portals Plus installation guidelines and roofing membrane manufacturer instructions.
• Insert the roof penetrations through the base collar.
• Place the C-212 EPDM cap onto the collar so its internal grooves seat onto both roll-formed beads.
• Tighten the stainless-steel Snaplock clamp evenly around the cap to complete the pressure seal.
• Inspect the assembly to confirm proper engagement of both sealing beads and secure clamp fit.

Q: What type of base is used in this assembly?
A: It uses a .060" spun aluminum base that is 4" high with a 14" base diameter and an 8" collared opening.

Q: How does the C-212 cap attach to the base?
A: The EPDM cap seats onto the collar’s two roll-formed beads and is secured with the included stainless-steel Snaplock clamp.

Q: What is this flashing used for?
A: It provides a weather-tight flashing solution for multiple roof penetrations passing through a single base.

Q: Is the stainless-steel clamp included?
A: Yes. The C-212 cap comes supplied with the Snaplock clamp for sealing to the base.