Did you know that 90% of all Interior Basement Waterproofing does not actually work!That's right these high end - charge you a fortune - waterproofing systems don't work. They leave you with the appearance of dry walls and floors, but the mold, smell and insects remain.How's that possible? Well 90% of the systems sit on the footer against the wall. So? - Well your footers are level, so how can it drain! Not to mention that the water under your slab has the ability saturate the footing before it ever reach's the drain system. And the systems are designed to catch water coming down the wall itself! This leaves a breach to the surface that allows the smell and evaporation to rise into the basement.So basically you have a gutter flowing around your basement that guarantees to catch the water flowing down your walls. Does that make sense to you?
The Best Way to Waterproof your basement is from the Outside. We start by excavating around the exterior of the house. We then power wash the dirt, etc - off the wall. This allows for a complete and thorough inspection for cracks or damage and allows for proper adhesion of other products. Then we apply a coat of tar followed by glue to adhere a rubber membrane, which is applied from ground level to the footer and over to the footers edge. We then apply a continuous roll of Dimple Board on the foundation to allow water to rapidly drain to the footing.We dig down next to the footing approximately 16" and lay about 4" of gravel. We then grade the gravel towards the outlet of the system and role in 4" Corrugated/Perforated Pipe. On top of the pipe we lay another 20" of Clear 3/4" gravel to allow for drainage. This is topped with Filter Fabric to slow the saturation of dirt into the new gravel. We then top off the trench with the remaining soil ensuring a proper slope of 1" per foot for the first 6' away from the house. This is not always the most cost effective way though. Depending on Landscaping, Decking, etc around your house. But it's definitely the best way.
Sarnia and Surrounding Areas