We then laid water-proof concrete to the whole basement at this point we could work on top of the base concrete so we were not walking in mud and water.
Watertight Homes preferred method of waterproofing is to use a cavity drained membrane system as supplied by Triton. Cavity drained membranes work by allowing water to continue to penetrate the structure but control it in the air gap and divert it to a suitable drainage point via the Triton drainage system (pump/s, sump/s and drainage channel). The membranes can be loose laid on floors and are fixed to walls using special plugs and sealing materials. Once the membrane has been fitted, wall surfaces can be drylined or plastered directly and floors can be screeded or a floating timber floor installed. Defined as Type C waterproofing systems to BS 8102: 2009, cavity drain membranes are forgiving when movement or vibration can affect a structure’s resistance to water. They can be supplemented by a wide range of drainage/sump and pump components depending upon the factors affecting the individual project such as water table, depth of structure, anticipated water ingress etc.
Watertight Homes used Triton’s Platon P8 membrane on the walls of the new basement and heavier duty, Platon P20, on the floors. Aqua channels was used and is a PVC drainage conduit designed to control water ingress in below ground situations. We fitted around the perimeter of the floor at the vulnerable wall/floor junction and is particularly suited for use in conjunction with Isola Platon cavity drain membranes. Water entering the building through the walls is controlled behind the Platon membrane, and diverted down to the aqua channel at the base of the wall. The water enters the aqua channel through pre-drilled drainage holes and then be diverted to our suitable drainage point, sump and mechanical pumps. My client did not want to take any risk with the amount of water coming into this basement so we used the Aqua Pump Pro Battery Back Up system comprises a polyethylene sump, locking access cover, powerful submersible x 2 pumps 24v back up pump and a 240 pump also control panel. It is designed for use where primary pump failure through mechanical fault of loss of mains power would be catastrophic. The system alerts the end user if the water rises above the normal operating level within the sump, and activates the back up pump via three separate float switches. The panel contains two trickle charged batteries.