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Roof Waterproofing System
A one component; moisture triggered elastomeric urethane coating specifically developed as a high performance waterproofing membrane for use on roof surfaces.
- Seamless – no joints to leak
- Excellent waterproofing
- Good application characteristics for easy by-hand application
- Short cure times allowing product to be over coated quickly
- Bonds to many existing roof structures
Product: Leeson Roofing System
Thickness: Determined by application requirements
Manufacturer: Leeson Polyurethanes Ltd.
Telephone: + 44 (0) 1926 833367
The substrate should be dry to 75%RH as per BS8204 and free from rising damp.
Asphalt roofing: No primer required.
Concrete: Primer must be used. Minimum 25N/mm2, free from laitance, dust and other contamination.
Products Included in this System
Primer: Various, see datasheet
Embedment: Leeson Base Coat (PU5558 EC)
Chopped Strand Matting (225gsm)
Sealer: Leeson Top Coat (PU5574 TC)
Detailed installation instructions are available
The installation should be carried out by an experienced contractor, details of contractors in your area can be obtained by contacting the company
Leeson Polyurethanes’ products are guaranteed against defective materials and manufacture and are sold subject to its standard Terms and Conditions of Sale, copies of which can be obtained on request.
Contact us for more information
The figures below are typical properties achieved in laboratory tests at 210C and 55% Relative Humidity.
|Test Method||Roof Waterproofing System Typical Values|
|Water Vapour Transmission||ASTM E-96||6.048g m2/ day|
|Base Coat (lt/m2)||1.2|
|Chopped Strand Reinforcement||225 gsm|
|Top Coat (lt/m2)||1.75|
|Tack-free time at 19oC||85 – 95 minutes|
|Shower Proof||30 minutes|
|Tensile Strength||ASTM D-648|
Method A, Die C
|Elongation at Break||ASTM D-648 Method A, Die C||9.90%|
|Modulus Strength||ASTM D-648 Method A, Die C||187.57 N/mm2|
To ensure you are specifying a fit for purpose surface for you project please consult our Area Sales Manager for your area or visit our website.