How can I stop damp coming through my walls?
If you are above ground and have water seeping through, you can normally get to the outside face and apply a water repellent product which will rainproof and damp-proof the brick, render or masonry wall. These type of materials are based on special silicones called siloxanes and are like a Scotchgard or Gore-tex effect on the surface – waterproof but fully breathable.
A major by-product of treating walls like this is that as they dry out they become fantastic insulators and give a huge reduction in heat and energy loss through the masonry. This can be as high as 40-50% reduction, depending on your wall construction. You can reduce your carbon footprint easily with this approach.
If you are below ground then you need to use our waterproof tanking system (it makes a 'tank' within your basement!) which will stop damp and water coming into your cellar for good, by lining the walls inside with an impenetrable skin of waterproof cement.
If you can get to the outside then you need an external tanking system, which is the more common route on new build projects.