Tempo:
plane of protection at the window perimeter, and in particular, provide drainage of the sub-sill area (Figure 130).
applying closed-cell sprayed foam to insulate and air seal the breaching in one step after the window is installed.
Depending on the technique used to insulate and air seal the window breaching (the gap between the window and the rough opening), air sealing may be performed after the window is installed. The most common technique now involves
The window must be connected to appropriate materials in the adjacent wall construction to maintain the continuity of the first and second planes of protection as well as the air barrier. It is best to connect the air barrier at the interior edge
130 Sequence for window installation
A
C
1. sub–sill slope to exterior 2. install sheathing membrane below opening 3. install waterimpermeable (WI) sill membrane 4. install WI corner reinforcement membrane
B
6. install vertical sheathing membrane and wrap into the side of the window 7. install horizontal sheathing membrane and wrap under header
5. install overlapping WI membrane
D 8. install window, shims and insulation 9. install head flashing 10. install and lap wall sheathing membrane 11. lap sheathing membrane above opening
E 12. install wood furring 13. install metal drip edge 14. install siding 15. install backer rod and exterior and interior sealants
applying closed-cell sprayed foam to insulate and air seal the breaching in one step after the window is installed.
Depending on the technique used to insulate and air seal the window breaching (the gap between the window and the rough opening), air sealing may be performed after the window is installed. The most common technique now involves
The window must be connected to appropriate materials in the adjacent wall construction to maintain the continuity of the first and second planes of protection as well as the air barrier. It is best to connect the air barrier at the interior edge
130 Sequence for window installation
A
C
1. sub–sill slope to exterior 2. install sheathing membrane below opening 3. install waterimpermeable (WI) sill membrane 4. install WI corner reinforcement membrane
B
6. install vertical sheathing membrane and wrap into the side of the window 7. install horizontal sheathing membrane and wrap under header
5. install overlapping WI membrane
D 8. install window, shims and insulation 9. install head flashing 10. install and lap wall sheathing membrane 11. lap sheathing membrane above opening
E 12. install wood furring 13. install metal drip edge 14. install siding 15. install backer rod and exterior and interior sealants
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