Harmer AV600 Aluminium Dome Grate Flat Roof Outlet with Vertical 150mm (6") Spigot Cast Alu 5"x4" MG1 The result is a slate

The result is a slate that delivers a near-identical aesthetic and technical profile:

Vermont Purple Slate is sourced from the prestigious "Slate Valley" region of Vermont

FIX-R 152mm PS Cover Strip is used for stripping in metal edging

FIX-R Roof Deck Adhesive (WBA)

Harmer AV600 Aluminium Dome Grate Flat Roof Outlet with Vertical 150mm (6") Spigot Cast Alu 5"x4" MG1 The result is a slateHarmer Roof AV Vertical Spigot Outlet with Domical Grate is designed for flat roof structures, including concrete, timber, and metal decks. Ideal for use with continuous waterproofing systems like single ply membranes, mastic asphalt, and built up felt. Compatible with cast iron, HDPE, and PVC O ring socketed pipework