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We've waterproofed 180m SqM of roofs!

We've waterproofed
180m SqM of roofs!

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The Thames Hospice

2nd July 2021




KKE Architects


 County Flat Roofing


alwitra® Evalon VSK



The Thames Hospice Roof Waterproofing System

In total 4000 square metres of Alwitra VSK was used, along with ICB Solafix Bars and approximately 4000 square metres of PIR insulation, mainly tapered on the following roof areas:

Rotunda Building-Tapered insulation and alwitra® VSK waterproofing around a large glass designed atrium, creating a centrepiece to the Hospice entrance area.

Sloped Winged Roofs-Warm roof build up with Alwitra VSK waterproofing, 160mm flat board PIR insulation and ICB Solafix Bars fixed to allow timber cladding to be installed over the waterproofing to improve the aesthetic appearance of the new building.  To look less industrious and to be more in keeping with the surrounding environment.

The Thames Hospice Waterproofing System Birds Eye

All other flat roofs and terraces are of a tapered insulation and waterproofing design using Alwitra VSK. The lining of the gutter areas around all the pitched roof areas were waterproofed using alwitra® VSK, with no insulation as these were external to the building. 

The low sloping tiled areas were insulated using 100mm flat board PIR insulation and waterproofed with alwitra® VSK and ICB Solafix Bars prior to the tiles being installed. This was because the pitch was low and wind driven rain could have potentially caused water ingress had normal breather membrane been used.

The Thames Hospice Roof Birds Eye

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Here's what some of our clients have to say...

We have been alwitra® contractors for many years and have always been impressed with the results and reliability of the product. The customers…

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I, James Hopkins Director of JH Specialist Roofing install single-ply membranes on a daily basis, we as a company have tried numerous types of…

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We have used VSK extensively over the last 5 years, we have found it to be a great product and really good for complex detail work. We find using…

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As a small flat roofing business carrying out mostly domestic refurb work and small extensions EVALON® VSK is our preferred single ply membrane…

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We have been an approved contractor for many years, the level of customer service and the quality of the products provided by ICB (Waterproofing) is…

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We have worked with ICB on several occasions and we would thoroughly recommend them for their high level of professionalism and efficiency. The team…

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OB Architecture

ICB provides an excellent service with all the professional back-up required at the development stage through to completion. The manner in which you…

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I am pleased to recommend ICB as Company, through my personal experience and that of my Business, for the following reasons: They are an easy Company…

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We believe, as one of your approved contractors, over the years we have had a great working relationship with yourselves. When working on projects…

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Best system on the market – VSK all the way!!!!!!


alwitra® is a lovely membrane when you have some detailing and gutters as you can go all the way through in a oner…


…that’s the beauty of this membrane, (you) can complete field sheet and upstand in one go, nice and tight and (a) crisp finish in the…

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This product has to be the most versatile single-ply system we have used. Unbeatable finish.

Lee Orchard

EVALON® VSK – such a quality and versatile membrane.

Lee Orchard

In my mind the best single-ply.


Can’t beat VSK


We find all the staff at ICB, friendly, helpful & knowledgeable.


EVALON® VSK! Surely the best single-ply waterproofing membrane ever produced! A++++


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