Causes of Humidity (dampness) in Building
Humidity (Dampness) may be due to:
1) Groundwater
2) Rainwater
3) Leakage from pipes.
1. Groundwater:
All the buildings are on clay. The soil holds water for one Long periods of time. Sometime water levels can rise and get in touch with the foundation. Due to from the ground, the capillary action grows in moisture foundations, floors and even walls.
2. Rainwater:
The components of the building may enter for various reasons.
- Top the wall:
If the top of the wall has not been protected from an invasive course such as concrete, Water can enter the wall and keep it moist for a long time. course such as concrete, can enter the wall and keep it moist for a long time.
- From the face of the outer walls:
Moisture spraying of the outer wall through the rain enters the moisture Wall. The faulty plaster coat is the main source of humidity(dampness).
- Improper-fixing of down take pipes:
If the roof-to-down-take pipes are not properly fixed, a thin layer of water is deposited near the mouth of the down take pipes. The result into entry of rainwater in roof and wall.
- Improper slopes on the roof:
In flat roofs, it sometimes causes moisture roofs If water is not properly provided for the slopes, water floors form on the flat roof, which the result of entering the water slab. After the water enters the slab, it remains for a long time to create humidity (dampness).
- Imperfect construction:
incomplete wall joints, incomplete slopes, structures roof joints etc. cause moisture in buildings.
3. Pipes Leakage:
From tanks overhead, pipes are carried along the roof and wall. From bathrooms, toilets and kitchen water are extracted from a different variety of pipes. The pipes are joined to achieve the desired length and turns. Many times, water is leak through the joint’s moisture is produced in the building components.