Liquid Waterproofing
Flexible, durable liquid PU to encapsulate almost any substrate
Liquid waterproofing is increasing in popularity all over the country for its ease of application and high performance. PermaRoof UK has developed a liquid polyurethane solution that is one of the most versatile and innovative products in today’s roofing and construction industry.
Perfect for roofing and a wider range of residential and commercial projects, our systems offer high performance waterproofing on even the most complex flat roofing. Durable and flexible, liquid waterproofing can simplify projects from basement tanking to buried roofs, anti-slip and car park surfacing.
PermaRoof Products Range

P100 Residential Waterproofing
The P100 liquid roofing product has been developed with residential waterproofing in mind. Suitable for a wide range of projects and covers almost any substrate. Flexible, durable liquid membrane, fast curing and straightforward to apply. Ideal for applications such basement tanking and buried roofs, pool play areas and roof terracing.

Commercial Liquid Waterproofing
The P500 liquid PU waterproofing system is suitable for a wide range of uses and offers flexibility for complex commercial situations. Ideal for liquid rubber roofing, green roof base layers, basement tanking, anti-slip or car park surfacing and more, our versatile product delivers a high-performance result for the long term.


Anti Slip Coatings
Creating an anti slip, waterproofed area is as straightforward as hand-casting a suitable medium over wet liquid PU or pre-mixing it for a truly embedded coating. Make safe domestic garden features, such as steps, paths or pool areas or simplify a large commercial project with PermaRoof Commercial liquid coatings. Find out more or talk to the expert teams today.

Emergency Roof Repairs
Emergency roof repairs can be expensive, particularly when out-of-hours or during busy periods for trade roofers. The PermaRoof UK Emergency Roof Repair product is a liquid rubber solution can be directly applied to cracks and tears to provide a fast-curing seal that lasts. Find out more about roofing repairs – tips and advice from PermaRoof UK.

The benefits and advantages of waterproofing with liquid PU
Flexible, durable and straightforward to apply, liquid coatings are increasing in popularity across both the UK’s DIY and commercial sectors. Ideal for application where membrane simply cannot reach, liquid PU is still hard to beat for complex roofing projects, large and small.
With a 25-year service life expectancy, liquid PU seals and protects the widest range of substrates for the long term.
Straightforward to apply over almost any surface and showerproof in under 30 minutes, liquid PU provides seamless waterproofing for a wider range of projects:
Balcony refurbishment
Anti slip pool play area
Car parking zones
To make safe garden steps, pathways and other features
Children’s nursery play zones
Retirement homes
Basement tanking and buried roof waterproofing
And much more.
Why choose a liquid rubber (PU) system?
How to buy liquid waterproofing systems
For domestic applications, P100 is available in a complete kit to buy online, ready to go. Currently, we offer off-the-shelf 5m2 and 10m2 liquid waterproofing kits or we can tailor a custom kit to suit your requirements (minimum 5m2).
Everything is included in a liquid roofing kit:
Liquid membrane (6kg or 25kg tins)
Primer
Sufficient matting
Rollers and frames
Mixing paddle
Latex gloves
Related Products to Buy Online
Liquid Waterproofing FAQs
For many applications, a liquid coating can provide a more comprehensive solution, effectively sealing complex surfaces where membrane is difficult or impossible to install. This can include historically damp situations, such as basements, cellars or other structures with buried roofing.
Being cold applied, often in a single coat makes it safer and faster to apply than other types of waterproofing. As it can also be applied to a wider range of substrates and even cover some types of existing covering, it can sometimes offer a more flexible approach than membrane for homeowners tacking complex projects.
- Electric drill with mixer attachment
- Rollers – it is recommended that you use a high quality 9” roller for main area application and a smaller 4” roller for detailing
- Sharp scissors – to cut and trim bandage
It is also recommended that you protect fascia and soffits, gutters and any other visible trim from potential drips or runs. Cover these with masking paper to simplify cleaning following application of the roofing system.
No, it is not advisable to use the product while it is raining. However, it can effectively seal in minutes and will protect the repair if rain begins shortly afterwards.
Although PermaRoof Emergency Roof Repair is not a paint product, this type of liquid is often referred to as ‘repair paint’.
The product consists of a liquid acrylic polyurethane blend that can be used in conjunction with a webbing-type matting for a longer term repair.
No, PermaRoof Emergency Roof Repair can be applied with a paintbrush once thoroughly stirred.
Yes, liquid PU or rubber-based systems can be applied to pitched roofs. High quality liquid waterproofing systems, such as our P500 product, typically contain a self-levelling compound. This means that an additive is needed to remove the self-levelling element. Once thoroughly combined, the product is ideal for pitched roofing.
Liquid PU roofing, once correctly applied, can have an expected service life of up to 30 years. It can perform as well as many types of membrane over a wide range of substrates.
Liquid PU roofing products are typically applied using a series of ordinary decorating rollers. We would recommend using a 4” roller or paintbrush for detailing and a 9” roller for main surface application.
P500, PermaRoof’s liquid roofing solution, is a polyurethane-based, flexible product. It also contains a self-levelling compound to simplify application. Liquid membrane is also acceptably known in the industry as liquid rubber roofing. Liquid membrane and liquid PU.
Liquid Installation Videos
Can we help with your liquid waterproofing project?
PermaRoof UK offers trade and DIY roofers a wide range of free resources to help with your projects. Visit the resource library today to find downloadable (PDF) installation guides, data sheets and more. Visit the video library to view installation tutorials to product guides and everything in between.
We also run liquid PU roofing application training courses at our Derby headquarters in our purpose-built training centre. If you’ve considered adding liquid coatings to your roofing services, training opens just the first new door for your business.
The liquid polyurethane (liquid rubber) range offers high performance and quality and comes with product warranty as standard. We’re ready to chat to you about the right system for your waterproofing project and can offer detailed installation advice to home and business owners, architects and project managers.
About PermaRoof
With an award-winning reputation for sales and customer service, you can be confident we’re a company that puts our customers first, whether you’re a trade counter searching for a reliable supplier, a professional flat roofer with a business to expand or a DIY enthusiast.
Our facility located in Derbyshire allows us to stock a significant amount of EPDM and we have the capacity for cutting hundreds of sheets per day. Centrally located in the Midlands, PermaRoof UK offers our reliable, fast delivery service via the company fleet across the country for most of our extensive range of flat roofing products.
Over the last few years, we have extended our range of products to not only flat roofing products, but products that solve further problems such as artificial grass, maintenance free metal fence system and other long term solutions.
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Permaroof UK® Ltd
Unit 1
Westway
Cotes Park Industrial Estate
Alfreton
Derbyshire DE55 4QJ
Tel: 01773 608 839
Fax: 01773 608 408
Email: Click here
Registration No. 4109502
VAT No. 764 2785 00
Permaroof (UK) LTD
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We are closed on bank holidays and we re-open the following working day at 8am. Feel free to send us your enquiry during these periods and we can get back to you.
CONTACT PERMAROOF UK
PermaRoof UK are on hand to answer any questions regarding our products, services or your order. We welcome enquiries from the trade, stockists and homeowners alike. Contact PermaRoof UK today using the below form and one of our experienced team members will be on hand to help you right away.
Permaroof UK® Ltd
Unit 1
Westway
Cotes Park Industrial Estate
Alfreton
Derbyshire DE55 4QJ
Tel: 01773 608 839
Fax: 01773 608 408
Email: Click here
Registration No. 4109502
VAT No. 764 2785 00
Permaroof (UK) LTD
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