Exterior Waterproofing Work

Location: Hammond Rd, Mississauga, ON

The client contacted The City Wide Group, reporting cracks in the property’s foundation. Upon inspection, the foundation cracks were identified as the primary issue, posing potential risks of water infiltration and further structural damage. The property’s soil conditions and water retention were factors contributing to the issue.

Challenges

Cracks in the foundation require exterior waterproofing to prevent further damage.

Risk of water infiltration causing interior damage and long-term foundation deterioration if left unaddressed.

Solution and Implementation Process

Site Preparation

  • Removed patio stones from the affected area.

  • Shrubs on the north side of the property were removed and were reinstalled after the work was completed.

  • Marked the excavation zone and ensured proper safety measures were in place.

Excavation

  • Excavated soil down to footing level, approximately 82 linear feet (LF) of exterior waterproofing.

  • 44 LF on the left side of the house.

  • 38 LF on the right side of the house.

  • Excavation depth was 5 feet to fully expose the foundation walls and footings.

Foundation Preparation

  • Once the foundation walls were exposed, the crew brushed and scraped the walls to remove all soil and debris.

  • Parged the foundation wall and footing with a Portland/polymer concrete mix where necessary to seal and strengthen the surface.

Waterproofing System Installation

  • Applied rubber bituthane membrane (BlueSkin WP200) for primary waterproofing protection.

  • Installed drainage membrane (Delta MS) to promote proper drainage and protect the foundation from water damage.

Drainage System Installation

  • Removed the existing weeping tile and installed new 4” perforated weeping tile with filter screening around the perimeter of the waterproofed walls.

  • Placed the weeping tile at the footing level and surrounded it with clean ¾” gravel to ensure proper water drainage.

Backfilling and Restoration

  • Backfilled the excavated areas with native soil, ensuring proper compaction to avoid major future settling.

  • Cleaned the site thoroughly and removed all excess soil and debris.

Final Steps

  • Once the soil has naturally settled, the patio stones will be reinstalled.

Conclusion

The exterior waterproofing work at 2684 Hammond Rd was successfully completed. The installation of the waterproofing membrane and drainage system ensures proper protection against water infiltration and structural damage. The patio stones will be reinstalled after the soil settles.