Elastaseal™ Warm Roofing System


All Elastaseal™ Roof Waterproofing Systems have been developed to solve the problems associated with the long-term waterproofing of flat roofs, pitched Roofs and Gutters.

When used in combination with the appropriate insulation and vapour control layer, a warm roofing system can be easily created. These warm roofs are designed to allow compliance with the building regulations (Part L) and increase the thermal efficiency of the building, which in turn reduces carbon emissions.

We can carry out U-Value calculations on existing roof structures either by core sampling or obtaining information about the current build up of the roof from drawings. If your current roof has a U-Value of 0.33 or less then insulation will be required to bring it to a new U-Value of 0.18.

If your flat roof has significant areas of ponded water, then this will be adding weight to the structure and can be the cause of localised roof failures. We can design a ‘cut to falls’ insulated roof system which will direct the water off the roof. New gutters and valleys can be created within these schemes to maximise the efficiency of the water dispersal.

Our flat warm roof systems utilise a high performance ‘tongue and groove’ insulation board (Tortherm). This ‘T&G’ board helps smooth out the new roof surface, minimising the ‘piano-keying’ effect sometimes seen when laying butt jointed insulation boards on an uneven surface. This creates an intrinsically stronger roof system and results in less stress on the insulation board joints. Additionally, Tor can provide wind uplift calculations.



How it Works


A) Prepared/Primed existing roof substrate

B) TorVap VCL/CM vapour control layer

C) Elastaseal™ FIA (foaming insulation adhesive)

D) Tortherm thermal insulation panel

E) TorVap VCL/CM carrier membrane

F) Elastaseal™  embedment coat with Elastamat™ fibre reinforcement

G) Elastaseal™ top coat

H) Additional Elastaseal™ top coat (for up to 30 year systems)


Our warm roofing systems are also available in our low odour range, using Elastaseal™ Z embedment and top coat.










The Tor Elastaseal™ Warm Roofing System:

  • Reduces heat loss from building (when correctly designed)
  • Allows Compliance with Building Regulations (Part L) and Environmental Protection Act (EPA)
  • Is cold liquid applied – no hot works on roof
  • Can be applied over most roof types and around plant and roof detail
  • Up to 30 year systems available
  • Quickly resistant to rainfall
  • Permanently elastomeric
  • Joint free
  • Excellent resistance to ponded water
  • Fibre reinforced for maximum strength
  • Insurance backed guarantees available

Frequently Asked Questions

Vapour Control membrane

Not always necessary.

Insulation Layer

Correctly specified for thermal performance with carrier membrane.

Primer (Optional)

Chosen to promote adhesion on some insulation / carrier substrates. Embedment Coat: Elastaseal™ embedment coat is the base waterproofing layer reinforced with Elastamat™ glass fibre mat.


Use as necessary to complete the system for the desired life expectancy.


Elastaseal™ can be used over many types of traditional roofing materials such as: Felt, asphalt, bitumen, asbestos cement sheet, fibre cement sheet, concrete, single ply membranes, profiled metal sheets etc.

New build

Used in combination with steel, concrete, screeded or timber constructed roofs.


Elastaseal™ Roof Waterproofing Systems are ideally suited for refurbishing and protecting weathered, worn and damaged substrates on many types of building:

  • Powerstations and sub-stations
  • Retail units
  • Warehouses and distribution centres
  • Factories
  • Schools and colleges
  • Hospitals and care homes
  • Garages/forecourts
  • Social housing
  • Chemical/pharmaceutical plants
  • Unrivalled expertise and knowledge Nationwide team of area managers / technical personnel
  • Free site survey
  • Free specification service (NBS format also available)
  • On-site technical back-up on live projects


Due to the high number of possible substrates and varying conditions in which they can be found, Tor Coatings strongly recommend that a site survey is carried out to determine the exact specification required.

New build

Elastaseal™ is on the RIBA NBS+ system, please contact us if you want us to produce an NBS Formatted specification.

Tor Coatings offer a free site survey service, and all of our Area Business Managers are fully trained and able to carry out full site assessments. A detailed and bespoke specification will then be issued.

Contact Tor Coatings on 0191 410 6611 to arrange your free site survey.

Tor Coatings’ national team of Area Business Managers is supported by a dedicated customer services team, a team of experienced paint chemists and a dedicated technical help desk. Call 0191 411 3148 for assistance from our helpdesk or visit www.tor-coatings.com to find out more.

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