CNA Insurance - Sioux Falls, SD

Due to moisture infiltration through the wall, component test cuts were taken which found improper installation of the existing thru-wall flashing and weep system. The resolution was removal of 3 courses of brick above each window. Installation of new thru wall flashing, weeps, end dams and new bricks were installed.

1. Numerous holes were found during investigation
    within the existing membrane allowing moisture to     bypass the existing waterproofing and leak into the     building.

2. During brick removal, it was revealed that leakage     occurred within the walls because the existing     membrane was ripped, torn and sliced.

3. Wall openings revealed signs of moisture staining     behind the metal lintel.

4. The waterproofing process in progress.

5. Thru-wall flashing and new brick installation
    in progress.

6. After removal of the old brick, brackets were used to     hold the wall in place and prevent any type of sagging.

7. Close up of the new brick being installed in the middle     of the building. This was to assist in the structural     stability of the wall.

8. Properly installed end dam that will prevent any     moisture from flowing down the wall and bypassing     the lintel.