The Problem: Water Intrusion and Cracks in Basement Floor Slab
A homeowner in Northport, NY reached out to Zavza Seal after experiencing persistent water intrusion through the basement floor slab. Over time, the concrete floor had developed visible cracks spanning about 50 linear feet, and water seepage was noticeable around the joint where the foundation walls met the floor slab. These issues raised concerns about further structural deterioration and potential health risks due to moisture and radon gas infiltration.
To protect their home and improve indoor air quality, the homeowner hired Zavza Seal for our expertise in basement waterproofing and crack repair in Northport, NY.
The Solution: Comprehensive Crack Repair and Waterproofing
Our team developed and executed a detailed waterproofing plan to repair the cracks and seal the floor slab effectively. The work was carried out in a methodical and professional manner to ensure a long-lasting solution.
Step-by-Step Process
- Scarification of the Floor: We scarified the entire 850 square foot basement floor area. This process removed the top layer of concrete and prepared the surface for proper adhesion of waterproofing materials.
- Crack Preparation and Repair: We opened all the cracks throughout the floor slab, totaling approximately 50 linear feet, to remove any loose or damaged material. Each crack was then filled and smoothed by hand troweling Basecrete waterproofing cement to create a seamless and durable surface.
- Joint Reinforcement: At the critical joint where the foundation wall meets the floor slab, we ground 3 inches vertically and 3 inches horizontally using steel brushes to clean and expose the bare concrete. Around the entire perimeter of the floor, we installed 4.5 oz reinforced Basecrete brand fiberglass mesh to strengthen the joint and prevent future water ingress.
- Final Sealing: As a final step, we applied a radon concrete sealer across the entire basement floor area in accordance with the manufacturer’s instructions. This not only added another layer of waterproofing but also helped reduce the risk of radon gas infiltration.
The Results: A Dry, Sealed, and Healthy Basement
After Zavza Seal completed the project, the homeowner’s basement floor was completely sealed against water intrusion and radon gas. The cracks were repaired with a smooth and strong finish, and the perimeter joints were reinforced for long-term durability. The homeowner can now enjoy a dry, healthier living environment with peace of mind.
If you are dealing with similar issues, contact Zavza Seal for professional basement waterproofing and crack repair in Northport, NY. Our experienced team provides tailored solutions to protect your home from water and gas intrusion.