Capillary rising damp occurs in buildings without a damp-proof course. The main building material is porous, and the surface tension of ground water causes it to rise through tiny capillary pores
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What is capillary damp?
Capillary rising damp occurs in buildings without a damp-proof course. The main building material is porous, and the surface tension of ground water causes it to rise through tiny capillary pores
Health hazzard
The odour of dampness and spoilt water is created through fungi and mould, emitting millions of bacteria in the room. Mould can produce toxic substances known as mycotoxins
References
PROsystem is the world's leading systems. A large number of reference objects invaluable cultural and historical value and satisfied customers confirm the commercial success
Other damp
Not all dampness in buildings is due to rising damp. Leaking water pipes or failed roofs and gutters may allow water to percolate through masonry
What exactly is capillary damp?
Capillary rising damp is characteristic of old buildings, built at a time when builders were unaware of waterproof materials such as bitumen and the like, which are now used for waterproofing. Moreover, old buildings are often built without foundations, directly on the ground.
Since the basic construction materials (brick, stone, mortar, concrete...) are to a greater or lesser extent porous, through them, that is through microcapillaries existing in their structure, damp gradually moves upward from the soil.
The "culprit" for this is the surface tension of water, which occurs due to the polarisation of water molecules, and its direct consequence is capillarity. Due to capillary action, water "climbs" up the wall, and while moving, creates an additional electromagnetic field in the wall, which enhances the capillary effect.
Given the structural and static characteristics of these facilities, in capillary rising damp sanation the appropriate method must be carefully chosen. Classical methods, that is, construction (physical) methods of sanation - "pressure injected systems" and "slot sawing", are very aggressive to the static of the building. Therefore, when it comes to old buildings, such sanation methods are not recommended either by the civil engineering profession, or the institutions dealing with the protection of cultural and historical heritage.
Capillary damp may also occur in newer buildings, which were waterproofed during construction. With such buildings the problem lies in damaged or deteriorated waterproofing.
Moreover, in the case of floods, capillary damp often remains in the walls due to waterproofing crack bridging.
Since the basic construction materials (brick, stone, mortar, concrete...) are to a greater or lesser extent porous, through them, that is through microcapillaries existing in their structure, damp gradually moves upward from the soil.
The "culprit" for this is the surface tension of water, which occurs due to the polarisation of water molecules, and its direct consequence is capillarity. Due to capillary action, water "climbs" up the wall, and while moving, creates an additional electromagnetic field in the wall, which enhances the capillary effect.
Given the structural and static characteristics of these facilities, in capillary rising damp sanation the appropriate method must be carefully chosen. Classical methods, that is, construction (physical) methods of sanation - "pressure injected systems" and "slot sawing", are very aggressive to the static of the building. Therefore, when it comes to old buildings, such sanation methods are not recommended either by the civil engineering profession, or the institutions dealing with the protection of cultural and historical heritage.
Capillary damp may also occur in newer buildings, which were waterproofed during construction. With such buildings the problem lies in damaged or deteriorated waterproofing.
Moreover, in the case of floods, capillary damp often remains in the walls due to waterproofing crack bridging.
Featured
PROsystem
The activity of PROsystem is based on the fact that water moves within the electromagnetic field due to internal tensions caused by different poles between the wall and the soil.
The activity of PROsystem is based on the fact that water moves within the electromagnetic field due to internal tensions caused by different poles between the wall and the soil.
Dehydration
Firstly, water from the highest levels of the walls to which it has risen slowly begins to move towards the lower parts. In the initial phase of the system, when the damp inside the walls starts moving, it can result in an increased evaporation of damp into the space that causes increased atmospheric humidity.
Firstly, water from the highest levels of the walls to which it has risen slowly begins to move towards the lower parts. In the initial phase of the system, when the damp inside the walls starts moving, it can result in an increased evaporation of damp into the space that causes increased atmospheric humidity.
