For Flat, Curved & Sloping Roofs

For Flat, Curved
& Sloping Roofs

25 Year Guarantee

25 Year
Guarantee

Specialist Advice & Support

Specialist Advice
& Support

Express National Delivery

Express National
Delivery

We've waterproofed 180m SqM of roofs!

We've waterproofed
180m SqM of roofs!

Request a sample

Request
a sample

Evalon VGSK
Evalon VGSK

Superior Fire-Retarding Self-Adhered Waterproofing

  • Up to five times lower fire load compared to two-layer seals
  • Optimal vapour pressure compensation function of the polyester fleece or glass/polyester fleece backing
  • Self-adhesive underside coating
  • With the integrated fire protection layer, for direct bonding on unbacked rigid EPS foam boards

Evalon VGSK

Superior Fire-Retarding Waterproofing

Evalon VGSK is a bitumen compatible, self-adhesive EVA roofing membrane with a polyester fleece backing and integrated fibreglass fire retarding layer.

Worldwide

As used on landmark architecture throughout the world

Tested & Certified

All of our membranes are thoroughly tested and certified

Trusted

Trusted by architects, roofing contractors & developers

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Applications

  • Steep sloped roofs
  • Curved roofs
  • Flat roofs 
  • Bridging expected cracks

Applications Back to top

Application
Examples

Loose Laid with BallastLoose Laid
with Ballast
Gravel, roof garden, concrete paving slabs
Mechanically FastenedMechanically
Fastened
In the seam overlap or with field fastening
BondedBonded
 
With compatible adhesives
BondedSelf-Adhered
 
With compatible primer
non ventilated roofs (warm deck roofs)

No

No

No

Yes

ventilated (two layer) roofs (cold deck roofs)

No

No

No

Yes

Documents Back to top

Evalon® waterproofing membrane information

Evalon® Waterproofing Membranes

Download Evalon Brochure (PDF)

Want to become an alwitra® accredited installer?

  • High-quality training
  • Become accredited
  • Receive new business leads from alwitra®

Apply Today

Our membranes are used by architects, contractors & developers. View all

Archdiocese of Liverpool
Coventry City Council
Aecom
3D Reid
Balfour Beatty
Aloft Roofing & Leadwork
Churchill
Fife Council
Angell Thompson
Alec French Architects
ISG
Ashtree Roofing
English Heritage
Glasgow Housing Association
Coomber Associates
Arc
Jade-Aden
Bay Roofing SW Ltd

Need expert advice or just have a question?

Our specialists are here to support you.
Just ask.

Contact Us 01202 785200

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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Michael

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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James

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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Dave

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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Charlie

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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Carlo

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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Dave

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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John

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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Martin

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

Richard

…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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Shaun

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

Dave

alwitra® Evalon VSK! Surely the best membrane ever invented.

Justin

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.

Peter

Can’t beat VSK

Lee

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

Steve

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

Kevin

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