Description
APPLICATION METHOD
A. SUBSTRATE PREPARATION
Cementitious or mineral-based substrates must be prepared mechanically using abrasive blast cleaning or scarifying equipment to remove cement laitance and achieve an open textured surface.
Loose friable material and weak concrete must be completely removed and surface defects repaired.
The concrete must be carefully assessed for moisture content, air entrapment and surface finish prior to primer application.
Apply Bitumen Primer at the correct consumption rate to the prepared dry surface and allow it to dry before the next application stage.
B. PASTING
Once the roll is aligned, peel back a portion of the silicone release film and press the membrane onto the substrate.
When securely adhered, remove the remaining release film from the roll.
Use a suitable roller (e.g., steel roller) to press the self-adhesive membrane onto the substrate including the laps.
Roll firmly to push out any trapped air bubbles towards the edges of the membrane.
C. DETAILING
All details such as internal and external corners, upstands, vent pipes, drains and support metalwork must be cut and sealed effectively.
Detailing must follow the recommended guidelines and good practice for torch-applied membranes.
D. PROTECTION
The membrane applied over the terrace must be finished with a coating of aluminium paint for non-foot traffic areas.
For foot-traffic areas, overlay with concrete screed mortar.
(Not required in case of Aluminium Top SBS Membranes.)

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