Rising Damp Under Carpet

Concrete is a naturally very porous material and water can rise up or travel through capillaries which can lead to damp floors and mould issues.

Rising damp under carpet.

The easiest problems to isolate and repair with damp floors are issues with above ground services such as leaking pipes. Rising damp also known as salt damp or salt attack is a natural phenomenon where salty ground moisture rises by capillary action up a brick or masonry structure such as a wall or a fireplace. Concrete s porous nature means that water from under your home can seep up through your concrete floor making it damp. If there was no dpm i would suggest a uniformal distribution across the whole floor.

To fix this problem would require isolating the source of the moisture problem and then taking the necessary steps to help the floor dry out. The common causes are a missing damp course or the deterioration of the damp course layer due to age. Damp rising through concrete floor slabs is fairly common when a damp proof membrane has failed or was not installed before the floor was laid. You also mentioned that there are vinyl tiles over the floor.

This can cause issues with mold and mildew especially if you have carpet or. If your property is suffering from rising damp which then rises through to the surface of the concrete then this is a more complicated procedure to fix. Fixing the damp proof membrane. This is less common in new buildings as damp proof membranes are required at the initial construction phase to prevent rising damp.