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Dampness in buildings if left untreated can lead to structural deteriation; it will result in decay of timber, spoil decorations and can have problematic health effects through the development of moulds and mites.
There are 3 main types of household damp which are detailed bellow along with the respective treatments to eradicate or remedy the effects.
Rising damp is water from the ground that enters a structure by capillary action. Most types of masonry used in the walls of buildings will allow some water movement by capillary action; however, this is usually controlled by a physical barrier or damp proof course. If this physical barrier is absent, has broken down or is damaged then it is often possible to install a new remedial damp proof course (DPC) to control water rising from the ground.
Only rising damp can be cured by the installation of a chemical or osmotic damp proof course. Which is where we come in!
Penetrating damp occurs as a result of problems with the fabric of the building that can allow water to leak into the walls or floors, so the first step is to check everything in and around the property. Examine gutters, downpipes, flashing, rendering and window frames in detail. Always make sure that downpipes are unobstructed, and if the guttering has seen better days, think about repairing or replacing it. Check the rendering to see if it's cracked, ensure pointing is in good condition and that there are no cracks visible.
An exterior waterproofing treatment is useful if your exterior brickwork has become porous. This will give it a new water-resistant skin. It only needs to be painted on when the brickwork is completely dry.
Water is deposited on the cooler surfaces in a building, particularly in winter. The first indication is usually black mould growth in the worst affected areas. This growth is characteristic of condensation because moulds need pure water for their growth and development. In severe cases the amount of water may be great causing pools of water on the floor, windowsills or on clothing and furniture.
Householders often find it difficult to believe that such severe damp problems can be caused by condensation alone. Often they believe there must be some sort of building defect which is usually not the case.
Loft ventilation units provides whole home ventilation using the Positive Input Ventilation principle. Essentially the concept is to introduce fresh, filtered air into the dwelling at a continuous rate, encouraging movement of air from inside to outside. Along with Mould Control Cleansers, anti-fungal paint additives for new paint and window trickle ventilators (where possible), the combination should eradicate condensation and mould for good.