For Flat, Curved & Sloping Roofs

For Flat, Curved
& Sloping Roofs

Up to 25 Year Guarantee

Up to 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!

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a sample

Flat Roof Vents

Cold Roof Vents

Cold Roof Vents

alwitra® cold roof vents can be welded directly to the corresponding roof waterproofing without any additional materials.

  • The vent cowl, combined with the protective weather cap, shields the vent pipe against rain ingress.
  • At the base of the unit, an integrated drip tray captures any condensation that forms, allowing it to evaporate gradually. This helps minimise the risk of moisture reaching and compromising the thermal insulation.
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Soil Vent Pipes

Soil Vent Pipes

The alwitra® soil vent pipe forms the upper end of vent pipes protruding over low slope roofs with waterproofing of any constructional type up to DN 125 (OD 125).

  • The soil vent pipe consisting of one single pipe extends over the roof build-up without any joints and is connected to the downpipe DN 125 (OD 125) and DN 100 (OD 110) below the roof structure by means of the included reducer.
  • A corresponding reducer (125/75) is available for downpipes DN 70 (OD 75)
  • The connecting flange can be made with EVALON®
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  • High-quality training
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Our membranes are used by architects, contractors & developers. View all

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

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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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EVALON® VSK

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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EVALON® VSK

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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EVALON® VSK

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!!!!!!

EVALON® VSK

Richard

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

EVALON® VSK

Dave

…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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EVALON® VSK

Shaun

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

EVALON® VSK

Lee Orchard

EVALON® VSK – such a quality and versatile membrane.

EVALON® VSK

Lee Orchard

In my mind the best single-ply.

EVALON® VSK

Peter

Can’t beat VSK

EVALON® 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++++

EVALON® VSK

Kevin

More Reviews

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