Battle of Britain Memorial - The Wing

BauderThermofol PVC single ply waterproofing system


The client wanted the new visitor centre building to replicate the shape of the iconic spitfire wing and to be waterproofed with a roofing system that would be aesthetically pleasing due to its high visibility. A particularly challenging element of the installation was the amount of intricate detailing requirements due to the elliptical shape and 5⁰ pitch of the wing areas. The waterproofing system needed to incorporate insulation that would achieve a 0.16 U-value and the memorial site had to remain open throughout the works causing logistical challenges.

Bauder Building Board


Battle of Britain Memorial



Roof Area:



Godden Allen Lawn

Approved Contractor:

Byford Roofing Services

The specification

Bauder’s anthracite coloured Thermofol single ply system was specified because it is high-quality, long lasting and with the addition of welded roof profiles gives the appearance of a standing seam metal roof.

The result 

The system build-up included Bauder’s 160mm PIR Insulation for superior thermal performance and all deliveries were timed as not to conflict with vehicles moving in and out of the facility. Despite the challenges encountered the project was completed in time for its official opening by the Queen in March 2015.

System installed

Bauder Thermofol PVC single ply waterproofing system



A 1.5mm thick, reinforced PVC waterproofing membrane. Stated within BBA certificate 06/4354, the Thermofol PVC waterproofing membranes have a service life in excess of 35 years. 

2 Bauder PIR M

Tissue-faced flat board insulation, benefitting from a zero ODP and a Green guide rating of ‘A’.


A 2.5mm depth, self-adhesive air & vapour control layer with a mica finish.


Project specifier, Nick Lawn from Godden Allen Lawn:
“The roof is one of the main features of ‘The Wing’ and is highly visible. Its construction presented numerous challenges as complex detailing was required. The Bauder single ply system has proved to be a very attractive, practical and cost effective solution and the technical support has been excellent.”