Waterproofing is the process of making a roofing system completely resistant to water penetration. It involves the use of membranes, coatings, sealants, and proper installation techniques to protect the building envelope. In Vancouver’s wet climate, waterproofing is essential for preventing mold growth, wood rot, and structural deterioration. Effective waterproofing extends the lifespan of the roof and improves indoor comfort by eliminating moisture intrusion. It is applied in both residential and commercial roofing systems and is a core requirement for long-term building durability.
