1. Determine Lead Safe Work

• Review work orders to determine if Lead Safe RRP is required. When required, follow RRP guidance in section Lead Safe Work section. 

2. Determine correct door for location

• Exterior doors shall be exterior-grade and insulated.  

• 20 minute fire rated doors shall be installed if between dwelling and garage (IRC R302.5.1)

3. Check fitment

• Before removing the old door check that the new door is the proper size.

4. Remove old door

• Remove existing door and frame to expose the rough framing in a way that doesn't damage finished surfaces or doorbell wiring. 

5. Level sill

• If Sill is 1/4" or more out of level, secure a tapered pressure treated board to span the width of the threshold to make it level and add stability. 

6. Protect sill

• Install some sill plate gasket or flashing tape and caulk under the threshold before inserting the pre-hung door. 

7. Insert new door

• Insert pre-hung door with the brick mold still attached if possible, plumb the hinge side, and fasten with 3 or more  3" grabber screws either behind the kerf or in screw hole in the hinge.  

8. Shim, adjust, and fasten new door in place

• Shim the adjacent side up (won't need if step 2 was performed) until the reveal at the top of the frame is even with the top of the slab and fasten with 3" grabber screws at the top 3 inches, middle, and bottom 3 inches. 

• May need to install shims under the threshold in multiple areas for rigidness. 

• Make sure shims are installed between the frame and jack stud so the frame will not bow away from the slab creating a poor seal. 

• You may need to move the upper or lower corners in or out, so there is even contact with the kerf. 

9. Air seal new door

• Once the frame is hung, insulate with either backer rod or foam. 

• Foam is preferred due to its continuous seal, adhesion to the materials, and it's ability to expand to the width of the door jam. 

• Be sure to use a low-expanding foam, so it does not bow the door frame making it difficult to close. 

10. Install door hardware

• Install the door hardware and make sure it all aligns and closes in a way that it creates a full seal. 

• Adjust the threshold so there is no daylight seen through the bottom of the door, and door opens and closes smoothly. 

11. Install interior trim & caulk

• Install the interior trim and caulk the edges. 

• Caulk the brick mold and threshold with an exterior grade caulking.

12. Worst Case Draft Test

• Conduct a Worst Case draft test to verify any Category I, II, or III appliances are venting safely before leaving home for the day.  

• Testing shall recorded using the WAP Worst Case Draft form.