SYSTEMS/MASONRY
ACCEPTABLE
Figure 4.2.16 Wall/Floor Connection - Steel Frame (Brand)
The thermally defective design in Figure 4.2.11 pointed out the need to maintain continuity of the air
barrier and insulation systems at window/wall intersections. Figure 4.2.17 shows an acceptable
connection between the wall and the window head (Brand). The flashing above the windows is
essential to control water leakage, and it must be straightforward to install to get good performance.
The flashing is carried behind the insulation and sealed to the flexible membrane air barrier. In
order to keep the frame close to the indoor temperature, it is positioned interior of the insulation.
The wall air barrier is sealed to the window frame to maintain continuity. Compressible foam
insulation is used to keep the air barrier warm between the wall insulation and the window frame.
ACCEPTABLE
Air barrier sealed to
thermally broken
window frame
Compressible foam
insulation
Figure 4.2.17 Wall/Window Head Connection (Brand)
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