Page 3 - Isocell Airstop Booklet

AIRSTOP
W h e r e t o s e a l ? At roof level- either to the underside of the ceilin or rafters.
AIRSTOP hollow or solid core rests on the internal block work, at ends of

At intermediate floor details such as floor joists or where

v -joints in concrete core.
At RSJ or other steel elements where they create a void
into/under a wall. Around Doors and windows, around all pipe
and wire penetrations.
All block work and joints usin either membrane, sand and
cement or spray/brush on sealer, above and below floor level,
in between floor voids.
Ground floor perimeters around insulated up-stands for AIRSTOP System
Air Leakage Paths underfloor heatin , basically any element that creates but
should not create a path for air to flow out or in throu h.

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