Portals Plus Deck-Mate DM#3 (1/4"-4") Colors w/ Clamps

The Portals Plus Deck-Mate DM#3 Colors w/ Clamps is a molded EPDM flashing boot sized for 1/4″-4″ Schedule 40 pipe penetrations through metal roofs or walls. It features a stepped profile that compresses around the pipe, reinforced ribs for shape stability under clamp pressure, a dead-soft aluminum flange that bends to roof contours, and a stainless steel clamp to maintain a long-term seal without relying on caulk.

Key features:

• Compression seal design using a stepped EPDM profile around Schedule 40 pipe.
• Reinforcing ribs maintain rigidity and shape under long-term clamp pressure.
• Dead-soft aluminum flange adapts to metal roof dips, contours and irregular pitches.
• Stainless steel clamp ensures a watertight seal and removes the need for caulk as the primary seal method.

• SKU: DM#3 (1/4″-4″ Colors w/ Clamps)
• Pipe penetration range: 1/4″ to 4″ nominal outer diameter. 
• Material boot: EPDM rubber with stepped profile and reinforcing ribs. 
• Flange material: Dead-soft aluminum base designed to conform to roof irregularities. 
• Clamp: Stainless steel clamp provided to secure flashing around pipe and maintain sealing pressure. 
• Temperature range: −60 °F to +270 °F for EPDM material. 
• Applicable systems: Metal roof and wall systems; compatible with corrugated metal roof configurations. 
• Color options: Available in multiple colors (for models DM#3 and above) including black, blue, gray, dark green, light green, brown and terra cotta.

Q: What is the pipe size range accommodated by the Deck-Mate DM#3 model?
A: It supports penetrations from 1/4″ to 4″ nominal outer diameter.

Q: Why is a stainless steel clamp used instead of caulk for this flashing?
A: The clamp provides a long-term compression seal and is specifically designed to maintain contact under movement; caulk is not recommended as the primary seal per roofing standards.

Q: Can the aluminum flange conform to uneven or pitched metal roof surfaces?
A: Yes. The dead-soft aluminum flange is engineered to bend and conform to roof irregularities, contours and varied pitches.

Q: What is the service temperature range of the EPDM boot material?
A: The EPDM material is rated for a serviceable range of −60 °F to +270 °F and is resistant to ozone and ultraviolet exposure.