Interior Drain Tile System
Our drain tile system can be installed with any type of foundation, any floor condition and around almost all existing construction. There is little or no impact on how the basement can be later finished. There is no disruption of landscaping and it addresses both foundation seepage and rising ground water, which an exterior system and many other interior systems do not. There is really no other type of post-construction waterproofing system that can permanently guarantee against water intrusion. We offer a transferable, lifetime warranty on all of our work.
In most cases, we would use an electric jackhammer for our cutting. We find that it creates less dust than a concrete saw and leaves a rough edge for the later concrete patch to bind into. We then excavate a trench to the base of the footing. The resulting dirt and concrete debris, will be hauled out and disposed of.
A four-inch drain tile pipe, perforated with drainage slits, is then placed in the trench. The pipe is made from High-Density Polyethylene (HDPE). This versatile product is used in field drainage, landscaping, highway construction and many other areas. The drain tile is surrounded with an aggregate filter bed, which allows water in, while filtering out the surrounding soil.
We then install a drainage panel, made from the same material as the drain tile, against the foundation wall. Raised studs on one side of the panel, provide a "sweat gap" between the wall and the basement floor. This gap extends down into the aggregate filter bed. Any water that may seep through the base of the foundation, is channeled down through the aggregate and into the drain tile.
Sump Basin / Pump
By sealing the drain tile system and applying a slight vacuum with a specialised fan, we can create a negative pressure beneath the basement floor. This can dramatically reduce water vapor and soil gas intrusion. It may even completely eliminate the need for dehumidifiers. If there is a radon issue, it can reduce radon levels by up to 99%. Sub-slab depressurization Is highly effective when added to a drain tile system. See Radon Mitigation
Note: Whether installing along with a drain tile system or as a retro-fit on an existing system we will never simply glue a sump lid shut with silicone to seal up a system as others may do. We will always use a gasketed lid that can easily be removed and replaced by the homeowner when excess to the sump pump is necessary.