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Waterproofing of exposed roofs

In order to apply the waterproofing of the exposed roof, the substrate should be clean and repaired. After correspondent steps have been respected, the waterproofing job can begin. Two system can be recommended:

Solution datasheet

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Common issues and queries you can face

A- Waterproofing with bituminous sheet membranes

B- Waterproofing with polyurethane liquid membranes.

Step by step solution

weber solution

1. When applying the Bituminous sheet membranes

   Biflex SL (SBS bituminous membrane) or Biplas SL (APP bituminous membrane) having their surface slated with mineral aggregates

2. When applying the Polurethane liquid membranes

   Applying weberdry prime 310 PU and finishing with weberdry 350 PU specially designed for UV resistance

Necessary products for this solution

weberdry prime WB

Cold applied bitumen coating

weberdry prime 310 PU

Deep penetrating polyurethane primer

Biflex SL

SBS modified highly flexible bituminous membrane with a slated surface.

Biplas SL 4mm

APP modified bituminous membrane - slated

weberdry PUR seal

Liquid applied polyurethane waterproofing membrane UV resistant