2.4 Inspection & Maintenance

Maintaining routine waterproofing inspection and maintenance services is one of the most cost-effective ways to extend the life of a structure/property. A regular inspection, care, and maintenance program are critical to the long-term performance of any waterproofing system, ensuring that the water-resistant system remains intact for as long as possible. The most challenging aspect of a waterproofing inspection and maintenance program is determining which systems, products, and services are most appropriate. Every structure is unique, as are the environmental requirements of each site. A waterproofing services plan that is individually designed and implemented is critical for long-term protection. Waterproofing inspection and maintenance must be customized from above-grade to below-grade, from the roof to the windows and doors to the drainage system, and from exterior to interior. Investing in a professional, customized system, as well as customized inspection and maintenance services, will more than pay for itself.  

As a minimum, the routine inspection, care, and maintenance activities and results must be documented on a log. The log must include the following information: 

  1. The date of inspection (at least twice a year, preferably before and after the winter season);
     
  2. The inspector’s record, name, job function/department, and signature; 

  3. Waterproofing conditions, such as record observations of accessible waterproofing membranes and membrane flashings at all edges, terminations, and penetrations. Make a note of any other conditions that may have an impact on the waterproofing system; 

  4. Leaks: keep track of all waterproofing leaks. If a leak is discovered, contact the waterproofing applicator who installed the waterproofing system right away; and 

  5. Repairs and alterations: The date of all work, as well as the individual or company who completed work that could affect the waterproofing. 

Water ingress and waterproofing failure may cause structural issues in affected concrete buildings and properties over time, such as sagging slabs, cracks, foundation movement, or rusted steel reinforcement, causing concrete cancer. Roof surfaces, drains, plumbing, water irrigation, window/door seals, and so on are the most common and damaging areas for potential waterproofing failures. Blistering or peeling paint, molds, mildews, vegetative growth, rust stains on the concrete façade, odour, efflorescence, cracked walls, and internal and rising dampness are all warning signs. These issues, which can lead to unsafe and unstable conditions, should never be ignored or postponed, no matter how tempting it may be to save money by delaying repair and maintenance work.

The first signs of foundation water damage should prompt action. The longer potential harm is ignored, the more severe the consequences can be. A failed system can result in a flooded building in extreme cases.