Radon Basement Ventilation - Your cellar does not have to be fully underground either to have potential problems with water. Even sloping sites where your cellar is built into a mountain side or has just 1 wall with ground up against it means that you might have a problem with water in the future. So what are your Basement Tanking Options. ?
Simplified you will find just two ways of tanking a cellar. The first method is to utilize an outside system. These systems when applied to the outside of the construction form a barrier to stop water penetrating the building. To utilize this strategy you can only do this when constructing a new cellar. Successful outside cellar tanking means forming a watertight membrane barrier equally underneath the concrete slab and up the perpendicular surfaces effectively creating a watertight tank around your cellar.
It has advantages of keeping the building dry and employing the ability of any water present to push the membrane on the structure. Many manufacturers use a property drain at adjoining externally to the wall floor junction footing. This is the area where water pressure is at its greatest and the land drain intercepts water and diverts it in the applied membrane and also the construction.
Please be aware that although it may seem simple in principle that the detailing and site requirements can be a significant problem in getting these systems put in properly. It only takes one mistake in workmanship in employing external cellar tanking goods and you could have a very waterproofing catastrophe. Wet, muddy and also very cold states may not match the manufacturer's recommendations when employing this type of system be aware that unless you follow their guidelines you may not have any recourse if things go wrong.