Car Park Deck Waterproofing are constantly exposed to oil spills, carbon dioxide gasses, de-icing salts and chlorides which can corrode the steel reinforcement if not protected with a waterproof membrane. Having the right protective layer not only protects against water ingress but also reduces wear and tear on cars and pedestrian walkways as well as increasing safety.
A good quality waterproofing system should be designed to be durable and long-lasting. Using an asphalt solution that can withstand the tough abrasion of vehicles, be easy to clean and provide skid resistance will help to extend the life of the structure. The membrane and the concrete slab must be fully drainable to prevent extensive damage to both when water pools and freezes in cold climates. To ensure this, the membrane should be sloped at least 2 percent towards a drainage system.
Sealing Success: The Comprehensive Guide to Car Park Deck Waterproofing
Choosing the right waterproofing system requires a thorough assessment of the risks and stresses to be expected by the concrete car park structure. A ‘Condition Survey’ should be carried out to evaluate the condition of the car park structure, decks, and cladding and identify any areas of deterioration that need special attention, or further structural investigation by a qualified engineer.
Depending on the solutions used car park waterproofing projects can cost around PS50 per square metre. This can be much less than the cost of repairing or replacing an entire concrete car park if not properly waterproofed. It is important to look for solutions that offer crack bridging technology to accommodate movement in the substrate, a long lifespan and design flexibility.