the permanent roof
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Have you watched the Permadeck videos?


Permadeck with  soft single ply systems

E&OE      The text and graphics of this website are Copyright © 1996-2015 all rights reserved by Seamless Roofing Ltd.  Permadeck, Thermadeck & Flexiroof are registered trade marks.  The contents of this website are subject to review and are a guide only and do not represent a binding offer. The BBA logo is Copyright © British Board of Agrément.  

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DL stands for Direct Lay.  The first Permadeck, ever, was laid directly onto asphalt in 1986.  Twenty one years later, to renew its guarantee, the surface was re-coated with Permadeck thus extending the roof’s life another 20 to 30 years.  Permadeck cannot be laid on uneven, rough, friable or bitumen surfaces that would dissolve on contact with the liquid resin.  Please contact us regarding the suitability of your surface.


Suitable surfaces are brushed and cleaned and a ‘seal’ layer of a fully reinforced Permadeck base coat is overlaid.  This layer takes the place of the more familiar DryPly used on most conventional roofs.  The Permadeck is then laid up in the usual way with reinforced base and coloured top layers.
Known movement joints should have ‘movement joint’ trims overlaid or other precautions taken.

PermadeckDL is completely seamless and highly resistant to the effects of the weather & lying water.  It can mould around existing details and even up behind parapets, rooflights and down into outlets. It can take any amount of ‘service’ foot traffic.

Using Permadeck as a Direct Layer on

smooth concrete or asphalt

This picture shows the ‘seal’ layer finished and the first strip starting on the proper base layer.

This picture shows the ‘base’ and ‘seal’ layers completed.  The cross-lay can be seen though this isn’t necessary being a liquid applied system.

The finished roof with the final uv and fire resistant coloured top coat.