Portals Plus 22035, Alumi-Flash Standard Base w/412 Black Cap

The Portals Plus 22035 Alumi-Flash Standard Base with C-412 Black Cap is intended for flashing roof systems with up to four penetrations sized 1″-2″ diameter. The base construction is .060″ spun aluminum, 4″ high, with a 14″ base diameter and an 8″ collared opening featuring two roll-formed beaded sealing rings. The molded EPDM C-412 cap is designed to mate with the collar beads and includes the stainless-steel Snaplock clamp for a mechanical weather-tight seal.

Key features:

• Supports up to four pipes sized 1″-2″ in diameter. 
• .060″ spun aluminum base unit (4″ height, 14″ base diameter, 8″ collared opening) with two sealing beads. 
• Molded EPDM cap (model C-412) paired with stainless-steel Snaplock clamp for secure mechanical sealing.
• Designed for retrofit or new roof flashing where multiple penetrations are grouped together.

• SKU: 22035 (POR-22035)
• Product type: Alumi-Flash Standard Base with C-412 Black Cap
• Penetration capacity: Up to four pipes sized 1″-2″ in diameter. 
• Base: Spun aluminum .060″ gauge; 4″ height; 14″ base diameter; 8″ collar with two beaded sealing rings. 
• Cap: EPDM molded (model C-412) with stainless-steel Snaplock clamp included.

• Install and roof-in the spun aluminum base per Portals Plus instructions and the roofing membrane manufacturer’s guidelines.
• Insert the up to four penetrations (1″-2″ diameter) through the base collar opening.
• Seat the C-412 EPDM cap over the collar so its internal grooves engage the two roll-formed sealing beads.
• Tighten the stainless-steel Snaplock clamp uniformly to complete the mechanical weather-tight seal.
• Inspect the assembly to verify full bead engagement and secure clamp fit.

Q: What penetration sizes does this model support?
A: It supports up to four penetrations sized 1″-2″ in diameter.

Q: What are the base dimensions and materials?
A: The base is .060″ spun aluminum, 4″ high, with a 14″ base diameter and an 8″ collared opening featuring two roll-formed beads.

Q: How does the C-412 cap seal to the base?
A: The molded EPDM cap seats onto the collar’s two roll-formed beads and uses the included stainless-steel Snaplock clamp to form a mechanical pressure seal.

Q: Are clamps included with this unit?
A: Yes — the C-412 cap comes supplied with the Snaplock clamp for sealing the cap to the base.