Why Cavity Wall Insulation Doesn’t Cause Damp
Most properties built after thirties in the UK were built with a difference or cavity between the two layers of the external walls. The reason for building the properties like that was to reduce building costs also to create a natural air flow into the property. Many people think the cavity was introduced to prevent water passing from the outside to the lining and filling them with insulation will allow this to happen and thus, creating damp. spouwmuurisolatie
However, there was a few cases when after having the cavities protected, the walls started getting damp. There are a lot of reasons why damp was caused and these might have recently been:
the insulation was created by unauthorized/unexperienced installers who did not follow a specific style and left spaces in the cavity unfilled;
there was already damp in the cavities that the property owners are not aware of;
the guttering, drainpipes or brickwork were in poor condition and not remedied before the padding was done.
If only those properties have recently been professionally surveyed previous to the cavity walls protected and the right steps have been taken then damp would have not been caused.
That’s why as part of the CERT scheme before having any insulation done to the property a study is being arranged, wherein a surveyor will exercise a tiny hole in each wall to ensure there are not any obstructions or trash inside the cavity. Likewise, the surveyor will check the drainpipes, guttering and brickwork and advise fixes where is essential which will have to be done BEFORE filling the major with insulation.
The building regulations installed into impact in 1982 specify that all new properties are fitted with cavity wall membrane insulation. If insulating the cavity walls really induced problems, then building rules probably would not make it required plus the utilities companies reinforced by the federal government would not be spending millions of pounds insulating the properties built before 1982 as they may have done since late 1990’s.
Although why should you insulate your cavity walls?
The material used for tooth cavity wall insulation is watertight so damp cannot be caused particularly if the workers follow the recommended style and if the study is properly done before.
Also, condensation problems triggered by excess water or poor ventilation can be prevented or eliminated by insulating the cavity wall surfaces.
In addition, insulating you tooth cavity walls will reduce around 25% of your twelve-monthly heating bills and lower up to 1000kg of carbon dioxide.