re-primed. if the work environment is dusty apply the membrane immediately after primer is tack free.
Always start laying the membrane at the lowest point.
Do not apply membrane if ambient temperature is below 5 C, do not apply bitumen primer to frozen concrete.
When the primer is touch dry apply membrane adhesive side down by pulling back the release paper.
Apply in a straight line to avoid wrinkles and "fish mouths" and immediately compress the applied membrane down onto the substrate using a roller or
similar tool to ensure good surface contact and to eliminate any air entrapment.
Lay membrane with minimum of 75mm side laps and 100mm end laps. use extreme care to ensure all end and side laps are fully sealed and bonded.
Polyroof sealant may be applied where necessary to seal around edges and at laps, however it must only be applied after the membrane has been bonded to the substrate. the adhesive side of tremproof3300 HD should not be pushed
onto uncured Tremco Polyroof.
On vertical surfaces that are more than 2.4 meters high, apply the membrane in cut sheets of maximum length 2.4 meters, starting from the low point. all membrane sheets should be pressed with a hand roller prior to application
of next layer above
Apply so that membrane continues over the top of foundation, parapet wall or slab. If membrane must be terminated on the vertical surface, ensure that a reglet or counter flashing system is used. where the membrane is to terminate at the base of a foundation wall, ensure that the membrane is continued over the edge of footings or base slabs and pressed very firmly to ensure good adhesion. ensure that all terminations are very well pressed with hand roller or other tool and where possible sealed tremco Polyroof.