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4. Fastening and Sealing the Unit

Jamb Installation:

  • Apply a generous bead of sealant behind the perimeter of the jamb where it will meet the opening.
  • Secure the jamb using #10 x 3/4” screws.

Shimming:

  • Shim behind the hinge jambs, lock jambs, and head jambs to maintain a plumb and square frame.
  • Place shims every 12”, 6” from the top and bottom of each jamb.

Head Jamb Sealing:

  • Apply corner seal pads where the threshold meets the jamb corners for additional water protection.

Caulking the Exterior:

  • Seal the perimeter of the unit where the jamb meets the sheathing.
  • Apply sealant along all edges of brickmould (if present).
Fastening and sealing the unit: Shimming
Fastening and sealing the unit: head jamb sealing

5. Final Adjustments and Weatherproofing

Threshold Adjustment (Inswing Doors):

  • Ensure the threshold creates a tight seal with the door bottom by adjusting the set screws.

Exterior Sealing:

  • Apply additional sealant at the bottom corners of the sill where it meets the jamb.
  • Seal joints between exterior hardware trim and the door face to prevent water infiltration.

Insulation:

  • Add insulation between the rough opening and the door frame, ensuring no compression that could bow the frame.

Cap Flashing:

    • Install properly aligned cap flashing above the unit to divert water away from the head jamb.
Final Adjustments and Weatherproofing

6. Quality Assurance

  • Inspect all caulk joints and sealants for continuity.
  • Verify that the unit is square, plumb, and securely fastened.
  • Confirm all exterior and sill areas are sealed to Wilson Lumber’s standards.
  • Perform a final inspection to ensure all water mitigation measures are in place.

Maintenance and Recommendations

  • Periodically check sealants and finishes for deterioration and reapply as needed.
  • Ensure all water management systems (flashing, sill pans, sealants) remain intact.
  • Swing-out doors require regular inspection of top, bottom, and side edges for finish integrity.