Zero odour. Zero leaks. Zero disruption.

Zero odour liquid-applied waterproofing for flat roofs, gutters and pitched roofs.

Book a free survey Download Brochure

Elastaseal Z uses innovative technologies to deliver a fast application on existing roofs with weathered, worn or damaged substrates and gets its Z from its zero odour, zero leaks and zero disruption benefits.

Elastaseal Z is a leading liquid roof waterproofing solution that offers a safer, more user-friendly experience for sites where fumes can be hazardous, such as schools, pharmaceutical and food/beverage manufacturing sites, hospitals, commercial offices and retail units.

Available in 10, 15, 20, 25 and 30 year systems, Elastaseal can provide long-lasting protection in as little as 2 coats and delivers a breathable, seamless finish that can also improve the thermal performance of roofs when used as a BUR solution with the appropriate insulation. Adding to its list of features, Elastaseal Z can also be applied as a wet-on-wet system, dramatically saving time and costs for clients.

The Elastaseal Z cold liquid system is ideal for roof refurbishment projects as well as new builds. The system is compatible with the majority of existing roof membranes and is particularly beneficial as a long-term solution to commercial buildings with leaking flat roofs.

During the free site survey, we will consider the following:
- The condition of the existing membranes, taking core samples to determine moisture levels.
- Whether the roof is suitable for overcoating.
- The termination details required to achieve a watertight system.

The Elastaseal Z warm roofing system provides long-term waterproofing and a thermal upgrade to improve comply with the building regulations Part L. Once installed, the system helps lower energy costs by conserving heat within the building.

During the free site survey, we will consider the following:
- The condition of the existing membrane and it’s suitability for a thermal upgrade.
- Whether the existing roof membrane requires a vapour control layer
- We will take core samples to determine the build up of the roof and the presence of moisture.
- We will carry out U value calculations to determine the thickness of insulation required and provide a condensation risk analysis.
- We will discuss the type of warm roof required e.g. flat insulation boards or a ‘cut to falls*’ scheme which will guide rainwater into the drainage system.
- We will provide out a wind uplift calculations to ensure that the roof is fixed adequately.
- We will agree termination details required e.g. watercheck or drip trims to manage to roof drainage.

In the Elastaseal Z inverted roofing system, the waterproofing membrane is applied directly to the existing roof and the insulation and filtration layer is applied above. The roof design is finished with paviours, sedum or other options to improve the functionality of the roof creating roof gardens, terraces or private balconies. The system’s seamless nature provides maximum protection and helps lower energy costs by reducing heat loss from the building.

During the free site survey, we will consider the following:
- The condition of the existing membranes.
- Core sampling to assess the roof build up and moisture levels.
- Determine if it’s suitable for overcoating.
- The type of surface design you want to achieve with your project.

Need more technical information? View Datasheet Centre

Why choose Elastaseal Z

Odourless system

The zero solvent odour formula prevents disruptions to day-to-day operations.

Fast installation

Wet-on-wet application techniques dramatically reduce installation times.

Waterproof barrier

A seamless, joint-free waterproof barrier that allows water to run away freely.


A durable system providing flexible and tough protection with BBA Accreditation.


Applied in a single operation means labour costs are significantly reduced.


Our 30-year system option delivers a cost-effective, high performance solution.

The Safe Use of Coatings Containing Diisocyanates

The European Union has introduced mandatory training for all materials which contain Diisocyanates.

As this includes products in our Elastaseal Z range, we’re able to provide specialist training to keep your team and projects safe, and work up to best practice before the legislation comes into place by August 2023. Typical applications are flat roofs, cladding, balconies and walkways – meaning there are few organisations better qualified to provide insight and training than Tor Coatings.



At Tor Coatings, we have been creating protective coatings for every surface since 1975 and we’re passionate about delivering the results you want, the way you want them, which is why our service doesn’t just end when your project ends. Whether you’re a specifier, surveyor or building manager, you can be safe in the knowledge that when you choose Tor products, you’ll receive a high-quality, long-lasting system, outstanding service and complete peace of mind throughout your project and beyond.

All of our roofing systems are covered by our comprehensive no quibble warranties. Each scheme is also covered by an insurance backed policy which we pay for* and by no quibble, we mean just that. If you experience complications with any aspect of your project following completion, our experienced team of site specialists will work with you to resolve any issues quickly and efficiently. No challenges, no problems, no fuss. That’s our promise to you.

* subject to underwriters terms and conditions

“We were very pleased with the work done to our Early Years roof thanks to the professionalism of Tor Coatings and our contractors Sterling Roofing. Everything was explained to us about the product and the application, all of the work was completed before the estimated time, and the site was left clean and tidy. The back‐up and warranty from Tor Coatings was another reason for us choosing them for our project.”

Andy Mercer, Early Years Centre

“Colliers International have worked with TOR Coatings across a range of flat roof repair projects within the greater London area, and have been impressed with both the quality of the products provided and level of service received. TOR have been involved from project inception through to practical completion, attending site inspections as regularly as required. Warranties are also issued in a timely fashion, following completion of the works.”

Rob Worton, Colliers International

Project Profiles

Grosvenor Square

  • 48 Grosvenor Square, Mayfair, London W1K 2HT
  • Category: Roofing
  • Product: Elastaseal Z
  • Sector: Housing
  • Roof Type: Flat
  • Guarantee: 20 years
  • Coverage Area: 200m2
Initial construction of the building took place in 1726 under a lease to the carpenters Thomas Cook and Caleb Waterfield. Following numerous renovations, it was demolished for rebuilding in 1927. The roof consisted of a mastic asphalt membrane applied to a timber deck. The asphalt was very old and required numerous localised repairs before an overcoat of the fully reinforced Elastaseal Z system could be applied.

Market Square

  • Tunstall, Stoke on Trent
  • Category: Roofing
  • Product: Elastaseal Z
  • Sector: Finance
  • Roof Type: Flat
  • Guarantee: 15 years
  • Coverage Area: 120m2
A tired, leaking roof gets a new lease of life! The roof itself was in bad condition, with poor detailing, deficient U-values and various leaks. The client wanted to stop the leaks and also improve the U-value of the building, as well as the detailing on the roof such as the upstands.

The Plantation

  • Leiston Road, Aldeburgh
  • Category: Roofing
  • Product: Elastaseal Z
  • Sector: Housing
  • Roof Type:
  • Guarantee: 20 years
  • Coverage Area: 1,150m2
Flagship Housing Association wanted to upgrade the thermal value of their properties and install a system to ensure their roofs wouldn’t leak and that this benefit would stand the test of time. Through an independent roofing merchant’s recommendation, it was realised that a Tor Coatings system was the best option from both a technical and customer service perspective.

How we will work with you


Free Survey

Our site surveys are FREE. Our first step is to listen, to learn and to collaborate. One of our highly experienced Area Business Managers will meet with you to discuss your project and undertake a free survey of your roof, noting any issues and defects to ensure every aspect of the project is clearly understood and documented thoroughly.

Book a free survey

Product Specification

Your Area Business Manager will recommend professional contractors to complete your installation. A detailed, bespoke written project specification will then be issued including CAD drawings as required. This specification explains how every detail of the roof will be tackled. Your Area Business Manager will always be be on hand to answer any questions you might have.



Your Area Business Manager and our technical service team will be there to monitor the various stages of your installation and ensure the project specification is followed correctly. You can be safe in the knowledge that we partner only with contracting companies whose customer service principles and values are aligned with our own.



For added peace of mind, all of our systems are offered with a comprehensive range of no quibble warranties. We are also pleased to offer building owners our insurance-backed guarantee, TorGuard.

A seamless, joint-free waterproof barrier that maximises protection.

Felt Roof

On a 1000m2 roof, the total distance of all joints and seams amounts to a maximum weak point of

1,364 metres

Single Ply Roof

On a 1000m2 roof, the total distance of all joints and seams amounts to a maximum weak point of

652 metres

Elastaseal Z Liquid Roof

On a 1000m2 roof, the total distance of all joints and seams amounts to a maximum weak point of

0 metres

Sign up to our newsletter

Be the first to receive exclusive news, expert advice, competition details and more.
Stay up to date with Tor Coatings and sign up to receive our email newsletter below.

Sign up