Basement Air Circulation System - Your cellar doesn't have to be fully underground either to possess potential issues with water. Even sloping sites where your cellar is built into a hill side or has just 1 wall with ground up against it means that you might have a problem with water in the future. What exactly are your Basement Tanking Options. ?
Simplified there are two means of tanking a cellar. The first method is to use an external system. These systems when applied to the exterior of the construction form a barrier to stop water entering the construction. To use this strategy you can only really do so when constructing a new cellar. Successful external cellar tanking means forming a watertight membrane barrier equally under the concrete slab and up the vertical surfaces effectively making a watertight tank around your cellar.
It has benefits of maintaining the building dry and using the ability of any water present to push the membrane onto the structure. Many designers use a land drain at adjacent externally to the wall floor intersection footing. This is the area where water pressure is at its greatest and the soil drain intercepts water and diverts it from the applied membrane and the construction. There are an assortment of different products available to individuals using this option when cellar tanking including, paint on or spray applied liquid membranes, torch on/heat welded membranes, bonded sheet drains, clay matting membranes etc..
Please be aware that although it might seem simple in principle the detailing and site conditions can be a substantial problem in getting these systems put in properly. It just takes one mistake in workmanship in applying external cellar tanking products and you could have a really waterproofing catastrophe. Wet, muddy and also very cold states might not match the company's recommendations when applying this sort of system be very aware that unless you follow their guidelines you might not have any recourse if things go wrong.