Rising damp has been troubling home owners since ancient times. Rising damp in concrete and masonry is the result of capillary action. Capillary action is a phenomenon associated with surface tension, whereby liquids can travel horizontally and vertically through tiny pores within materials.
When the materials such as bricks, concrete blocks and plaster come into contact with moisture, the water adheres to the pores of the material capillaries and starts moving upwards. The height to which the water rises depends upon several factors such as pore structure, type of building material and rate of evaporation. A high proportion of fine pores in the structure will allow water to rise higher through wall.
Common Symptoms of Rising Damp?
- Damp patches on wall
- Plaster peels away
- Paint doesn’t adhere to the wall
- Presence of white salts (Efflorescence)
- Tide marks upto 1.5 mtr high
Problems due to Rising Damp?
Health concerns: Rising damp is a serious problem that affects all the inhabitants of the house and can even cause health issues like
- Respiratory problems like Asthma
- Body pains
- Lung diseases
- Allergies
Economic concerns:
- Affects the property value
- Decay of the building structure
- Higher maintenance costs