Rigid Foam Insulation For Basement Walls - Your basement doesn't have to be completely underground either to have possible problems with water. Even sloping sites where your basement is built into a mountain side or has only one wall with earth up against it usually means that you might have a problem with water in the future. So what are your Basement Tanking Options. ?
Simplified there are just two ways of tanking a basement. 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 so when building a new basement. (for the obvious reasons). The region to pay close attention to is the wall floor intersection. Successful outside basement tanking means forming a waterproof membrane barrier both underneath the concrete slab as well as the vertical surfaces effectively creating a waterproof tank around your basement.
This has benefits of keeping the building dry and employing the power of any water current to push the membrane onto the structure. Many manufacturers use a land drain at adjoining 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 in the applied membrane along with also the construction.
Please be aware that although it may appear easy in principle that the detailing and site requirements can be a substantial problem in getting these systems placed in properly. It just takes one mistake in workmanship in applying external basement tanking goods and you may have a very waterproofing disaster. Wet, muddy and also very cold states may not match the manufacturer's recommendations when applying this sort of system be very aware that unless you follow their guidelines that you may have no recourse if things go wrong.