1. Air sealing doors 

• Steps 1a - 1c.

1a. Install weather stripping on exterior door 

• Use a durable stop-mounted or jamb-mounted weather-strip to seal the door’s side jambs and head jamb. 

• Apply caulking to the back of the weather-strip to prevent air from leaking behind the weather-strip. 

• Ensure proper operation of the door system. 

• Door should seat against the weather stripping

1b. Install threshold 

• Install threshold if needed to prevent air leakage at the door bottom. 

• Threshold should not bind on door and needs to be caulked underneath and both sides. 

• Install corner seals (pads or wedges) to close the gaps at the bottom corners of the door jambs. 

• Seal gaps between the stop and jamb with caulk. 

1c. Install door bottom sweep 

• Cut door sweep to width of door. 

• Install sweep on interior side of door using screws (caulk back side of sweep before installing). 

• Sweep must contact threshold. Ensure proper operation of the door.

2. Air sealing windows (interior) 

• Seal between the fixed components of the window (e.g., jambs, sill) 

• Caulk or sealant will be continuous and complete while maintaining the operability of the window.

2a. Install new latch 

• Locks will be installed so that the rails of the upper and lower sashes are flush and in full contact. 

• No gaps will be visible between the two sashes. Locks will be installed to achieve compression of the two sashes.

2b. Install pulley covers 

• Install covers so the pulleys are completely covered and don't interfere with window operation

2c. Caulk cracks 

• Caulk the window frame where appropriate to prevent air leakage and condensation.

3. Replace glazing 

• Glazing points may be needed to secure glass prior to installing glazing compound.

• Glazing compound will be added in accordance with manufacturer specifications. 

• Ensure glazing compound will adhere to sash. 

• Allow glazing compound to harden to ensure secure installation.

4. Awning & casement windows 

• Use a durable stop-mounted weather-strip to seal all sides of the window. 

• Seal the back of the weather-strip to prevent air from leaking behind the weather-strip. 

• Use self taping screws to fasten to window frame. 

• Install new latch.  

• Ensure proper operation of the window. 

5. Client education and maintenance  

• Occupants will be notified of changes or repairs made and will be educated on how to operate and maintain windows & doors.

6. Worst Case Draft Test  

• Conduct a Worst Case Draft Test to verify Category I, II and III appliances are venting safely before leaving home for the day. 

• Testing shall be recorded using the WAP Worst Case Draft Test from.