SYSTEMS/PRECAST
Figure 4.4.11 shows the connection between the wall and the window head and sill for a wall with
an air barrier at the outer drywall surface. The air barrier is connected to the window frame with a
flexible membrane. In order to keep the air barrier warm, compressible foam insulation is used at
the connection.
ACCEPTABLE
Compressible
foam insulation
Metal tubing around
window frame for
reinforcement
Wall air barrier sealed
to window frame
Figure 4.4.11 Wall / Window Intersection (Brand)
PAGE 4.4-12
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