All underpinning Toronto structural construction projects by the City Wide Group are performed with the highest level of safety and building methodology. We do it right the first time following all the best practices and using all the best materials of today’s structural technology. Each underpinning is a custom installation but each has common elements. Two of the essential components of all successful basement dig outs and foundation renovations are waterproofing and household drainage.
Waterproofing when Underpinning
Whenever the foundation of your home is disrupted or altered in any way, the waterproofing systems are also compromised. Changes have to be made to the waterproofing systems along with the underpinningso the life of the useable, dry space will be enhanced. New waterproofing installations are a key part of every foundation underpinning project.
The City Wide Group installs an internal waterproofing system, which consists of a 4" weeping tile system tied into sump pump around perimeter of foundation, to establish continuity and bleeding in foundation. A drainage mat (Delta MS membrane) is then installed around foundation walls, covering existing foundation and underpinning pockets, and draped over weeping tile and the gravel bed. If specified, sump pumps and back flow valves complete the work to ensure that your new basement is high and dry. The possibility of moisture or vapor transmission through the new concrete floor can also be addressed by installing special drainage subfloors to receive new finish flooring.
Drainage and Digging out the Basement
When you have decided to underpin the foundation of your home, the house’s existing waste drainage system is a fundamental consideration. The City Wide Group is expert and qualified to undertake work related to the renovation of your drain system. As underpinning is usually undertaken in older homes, older household plumbing, electrical and insulation systems can be replaced or upgraded with modern technologies. Sump pumps, back flow valves, sewage and plumbing rough ins for future connections are frequent parts of the project. Now is the time to correct and improve drainage and plumbing issues. Call theCity Wide Group today.