Roof deck adhesive (WBA) is a water-based adhesive used to bond EPDM membrane directly to suitable roof deck surfaces such as timber sheathing. It is typically applied by roller or brush to the prepared substrate, allowing the membrane to be laid into the wet adhesive and pressed into place.
The adhesive is formulated for even coverage across larger roof areas and is suited to full-bonded systems where the membrane is adhered over the entire deck. It forms part of the ClassicBond EPDM installation system when used on compatible substrates under appropriate conditions.