Frequently Asked Questions

The lifespan of foundation waterproofing depends on the type of product used, installation quality, and environmental conditions (soil, drainage, humidity). A well-installed system can typically last 20 to 40 years or more with proper care.

Factors affecting longevity include:

• Type of membrane:
  • Modified bitumen membranes last 30 to 40 years on average.
  • Liquid or elastomeric coatings are long-lasting if applied properly.
  • Cementitious coatings have shorter lifespans and may need reapplication.
• Installation quality:
  • A uniform, defect-free application ensures effective long-term protection.
• Perimeter drainage:
  • Good drainage systems reduce hydrostatic pressure and extend waterproofing life.
• Site maintenance:
  • Preventing water accumulation near the foundation helps maintain system performance.

For a long-lasting solution tailored to your home, consult foundation specialists like Heneault Gosselin.