The importance of waterproofing concrete for longevity and durability

By Pli-Dek.  

Understand the key advantages of waterproofing concrete.  

Water exposure can severely damage concrete, compromising its appearance and strength while often indicating deeper structural issues. To protect concrete surfaces like walls and floors, waterproofing is essential. Not only does it prevent mold and mildew growth, but it also reduces maintenance costs, making structures easier to maintain. Some building codes require waterproofing concrete and block walls in areas that experience flooding, have high water tables or get heavy rainfall. And load-bearing walls of high-rise buildings are mandated to be waterproofed in order to protect the stability of these large structures. Pli-Dek specializes in effective waterproofing solutions for concrete structures to preserve the durability and visual appeal of concrete projects.

The impact of water on concrete

Water exposure can significantly deteriorate concrete, not only affecting its appearance but also compromising its strength. You may have observed surface damage on sidewalks or aging mortar, where the concrete erodes and exposes the underlying materials. In severe cases, water can rapidly degrade concrete, though it typically takes a few years for noticeable damage to appear. Visible surface damage often indicates deeper issues within the wall or floor's structural integrity. To maintain the strength and aesthetic appeal of concrete projects, waterproofing is key. Additionally, waterproofing protects the rebar within concrete from rust and erosion.

 Additional benefits of waterproofing concrete

• Prevents mold and mildew: By keeping moisture out, waterproofing safeguards the structural integrity and health of your walls and floors, preventing mold and mildew growth.
• Reduces maintenance costs: Waterproof structures are easier to maintain and require less cleanup after heavy rain or flooding. Routine maintenance is simplified, as waterproofing keeps surfaces clean and intact.

Steps to take before waterproofing concrete

• Clean and dry the surface: Ensure the surface is free from dirt, old paint or floor coverings. Use a scraper to remove any residues and sweep thoroughly. For stubborn grime, use a mix of warm water and soap to scrub the area, rinsing afterward. Allow the surface to dry completely.
• Patch holes: Use a hydraulic expanding concrete mix to patch any holes. Allow the patches to cure for at least 24 hours before proceeding.
• Protect adjacent areas: Use tape to cover items extending onto the floor or walls, such as stairs or electrical boxes, to prevent them from being affected during the waterproofing process.

The importance of quality materials

Using high-quality waterproofing products is crucial to avoid wasting time and money on inferior materials that may fail prematurely. At Pli-Dek, we bring over 50 years of experience in manufacturing and applying various waterproofing systems.

Original article and photo source: Pli-Dek