Added green roof protection for former WWII bunker

Added green roof protection for former WWII bunker

A green roof waterproofing solution from Alumasc delivers a ‘camouflage’ effect for The Decoy Bunker in the rolling hillsides of Monmouthshire.

The original bunker was built in 1941 and was designed as a special decoy target for German bombers. The secluded bunker has now been fully restored using Alumasc’s Derbigum Waterproofing and Blackdown’s Green Roof Systems and is now a unique holiday home.

As part of the design the bunker needed to blend directly into the hillside therefore a highly durable waterproofing system that could provide full protection from the water travelling down from the surrounding landscape was needed. A green roof waterproofing solution that would provide the maximum blending effect was also required to give it the desired ‘camouflage’ effect by using the existing soil and grass from the surrounding landscape. Blackdown Greenroof Drainage Layers, Intensive Substrate and Washed Pebble Ballast was installed to finish the green roof.

With Derbigum being a system that holds 40 year durability certification with the BBA (British Board of Agrément) – a Derbigum Black Anti-Root Built-Up System was the ideal solution. The Derbigum system sits below the green roof and provides a highly reliable waterproofing solution and maximum peace of mind for the future.

Add to Project Board

Create a new project board:


View Green Roof Systems Product Entry
Alumasc Roofing

Alumasc Roofing

Alumasc Roofing is a leading provider of exceptional products and solutions for new build and refurbishment projects.

They have a wealth of experience in dealing with key clients and customers across all building sectors to deliver a...
View company profile

Make an enquiry to Alumasc Roofing

You may also be interested in this related Case Study: Alumasc helps Conwy Culture Centre towards a green future Read Now