Radmat Building Products Limited

Readyseal Roof Waterproofing System

Manufacturer: Radmat Building Products Limited 

Materials: Silane Terminated Polyether 

The ReadySeal Roof Waterproofing System consists of:

  • ReadySeal — a single part, solvent-free, silane-terminated polyether waterproofing
  • Radmat G120 reinforcement fleece — a needle punched glass fibre reinforcement for embedding into ReadySeal to aid in the reinforcement of construction details, flashing joints, cracks and gaps.

The physical characteristics of ReadySeal are:

  • density 1.5 g·m–3
  • installed system thickness 2.3 mm
  • film forming time at 25°C and 50% relative humidity 30 minutes
  • cure to allow foot traffic at 25°C and 50% relative humidity 5 hours
  • total cure at 25°C and 50% relative humidity 7 days
  • colour Telegrey 2 (RAL 7046).

BBA logo

Number: 20/5797
Issue date: 02/09/2020

Approved for use on

Balconies, Terraces & Walkways Flat Roofs Green Roofs Inverted Roofs Pitched Roofs Podium Decks Protected Roofs Zero Falls Buried Roofs 

The ReadySeal Roof Waterproofing System is satisfactory for use in:

  • inverted roof specifications on flat and zero fall roofs with limited access or pedestrian access
  • protected warm and cold roof specifications, eg covered by pavers or other suitable protection on flat and zero fall
  • green roof specifications (extensive) on pitched, flat and zero fall roofs with limited access
  • exposed warm and cold roof specifications on flat and pitched roofs with limited access
  • roof terraces
  • podium decks.


Concrete Reinforced Bituminous Membranes Steel Timber 

The system is suitable for use on the following substrates:

  • concrete (primed)
  • cementitious screeds, including latex modified
  • bituminous roofing membranes, including mineral surfaced, in cold and warm roof specifications (primed)
  • steel (primed)
  • plywood satisfying the requirements of BS 6229 : 2018
  • oriented strand board satisfying the requirements of BS 6229 : 2018.


30 Years 

Under normal service conditions, the system will provide a durable waterproof covering with a service life in excess of 30 years

Installation Requirements

Installation of the system must be carried out only by specialist roofing contractors trained and approved by the Certificate holder.

Fire Safety

7.1 A system comprising a primed 16 mm thick wood particle board, a 0.6 mm thick self-adhesive air and vapour control layer (AVCL), a 120 mm thick aluminium faced polyisocyanurate (PIR) insulation board bonded using polyurethane adhesive, a 0.6 mm thick self-adhesive carrier membrane and the ReadySeal Roof Waterproofing System installed at a thickness of 2.3 mm achieved an EXT.F.AB classification(1) to BS 476-3 : 2004 and so is unrestricted under the national Building Regulations.
(1) Fire Test report, reference 19116A conducted by Warringtonfire Ghent. Report available from the Certificate holder.

The system, when protected by an inorganic covering (eg gravel or paving slabs) listed in the Annex of Commission Decision 2000/553/EC, can be considered to be unrestricted under the various national Building Regulations.

The designation of other specifications should be confirmed by reference to the requirements of the documentssupporting the national Building Regulations.

The system, when used in pitches of greater that 70°, excluding upstands, should not be used on buildings in England and Wales that have a storey at least 18 m above ground level and contain: one or more dwellings, an institution, a room for residential purposes (excluding any room in a hostel, hotel orboarding house), student accommodation, care homes, sheltered housing, hospitals or dormitories inboarding schools.

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Radmat Building Products Limited

Holland House Valley Way
Rockingham Road
Market Harborough
LE16 7PS

T : 01858 410372

E : orders@radmat.com

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