Excavation Around the Stairwell: The area surrounding the stairwell was excavated to expose the existing waterproofing layer. This was done carefully to minimize disruption to adjacent structures and ensure access for the new materials.
Removal and Cleaning of Old Waterproofing: Old Waterproofing Removal: The existing waterproofing material was removed using specialized tools to avoid damage to the underlying concrete. The exposed concrete was thoroughly cleaned to eliminate all debris, dirt, and residues, creating a suitable surface for the new waterproofing application.
Concrete Surface Preparation: Inspection and Repair: The concrete surface was inspected for any imperfections such as cracks or spalling. Necessary repairs were carried out to ensure a smooth and stable base for the new system. A thorough cleaning with a wire brush or high-pressure wash was performed to ensure optimal adhesion of the new materials.
Installation of Hot Rubber Waterproofing: The new hot rubber waterproofing material was heated according to manufacturer specifications to ensure effective application. The heated rubber was applied uniformly to the prepared surface, filling the reglet and forming a continuous waterproof barrier around the stairwell.
Water Testing: Conducting Water Tests: Following the waterproofing installation, a water test was performed. This involved flooding the area to check for leaks and ensure the integrity of the waterproofing system.
Backfilling with Granular Material: Fresh granular material was obtained for backfilling the excavated area. The granular material was carefully placed back around the stairwell, followed by thorough compaction using a mechanical compactor to provide stability and prevent settling.
Installation of New Flashing: New flashing material was chosen to effectively redirect water away from the stairwell. The flashing was installed around the perimeter of the stairwell to enhance waterproofing and protect against moisture infiltration.
Topsoil and Sod Restoration: New topsoil was added to restore the landscaping around the stairwell area. Fresh sod was laid to re-establish greenery, ensuring the area is visually appealing and integrates well with the surrounding landscape.
Supply and Installation of New Asphalt: New asphalt matching the existing surface was sourced for installation. The new asphalt was applied over the restored area, ensuring a smooth, even finish. It was compacted to achieve the necessary density and level.
