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B&Q£20.17Visit shop B&Q - Master Flash® Roof Pipe Flashing Master Flash Multi Port Epdm 0-70 mm Black For Multiple Cable & Pipe
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The Master Flash Multi Port EPDM Roof Flashing is designed for professional roofers, contractors, and DIY enthusiasts who need a reliable, weatherproof solution for routing multiple cables and small pipes through a single roof opening. Its primary benefit is the ability to organize complex penetrations—such as PV cables, A/C lines, and electrical conduits—with a single, durable component. While it offers exceptional versatility with its trimmable ports, users should note that careful measurement of the roof pitch and pipe diameters is essential for ensuring an airtight seal upon installation.
| Model Part Number | 5904664008233 |
|---|---|
| Brand | Master Flash |
The Master Flash Multi Port is designed for penetrations ranging from 0 mm to 70 mm.
Yes, it is suitable for various roof slopes, including flat or low-pitch roofs, provided the base is sealed correctly.
The aluminum base is designed for metal roofing; however, it is highly adaptable to corrugated, trapezoidal, and standing seam systems.
Standard tools such as a utility knife for trimming, a caulk gun for sealant, and a drill/driver for fasteners are sufficient.
Always use a high-quality, neutral-cure silicone sealant that is compatible with EPDM rubber and your specific roofing material.
Check that sufficient sealant was applied under the base and that the fasteners are properly tightened to compress the gasket.
Use a sharp utility knife to trim the port ring to the next size up; do not force oversized cables as this can tear the EPDM.
To install, ensure the roof surface is clean, dry, and free of debris. Position the flashing over the service lines and mold the aluminum base by hand to match the profile of the metal roof sheets. Once shaped, apply a high-quality neutral-cure silicone sealant underneath the base and around the perimeter before securing the unit with fasteners appropriate for the roof material. For care and maintenance, conduct a visual inspection annually. Check the sealant bead for signs of cracking or separation and ensure the EPDM rubber shows no signs of dry rot or thermal degradation. If the ports are no longer snug against the cables, replace them or apply a high-grade outdoor-rated adhesive tape or additional sealant to restore the seal.
