Are you experiencing problems?
Sometimes, your cavity wall insulation can develop and show signs that they are faulty. Damp could occur in properties as a result of cavity wall insulation if there is a combination of these factors:
• Your home is exposed to severe weather conditions
• Your home is located in an unsheltered position, e.g. not protected by other buildings or by trees
• The external walls are poorly built, e.g. cracks in the brickwork
If you had cavity wall insulation installed a long time ago, it could be possible that Urea-formaldehyde may have been injected into your cavity wall. This is a type of foam which, over a number of years, degrades and can become harmful to your health through a combination of gas released from the foam and damp – most properties have had this removed, but this can be very dangerous if it is left to stay.
There have been a number of occasions where the cavity wall insulation has been fitted into houses which aren’t suitable, like steel or wooden framed properties. For properties constructed with brick which are in poor condition or are in areas subject to wind-driven rain, e.g. near the coast, problems caused by cavity wall insulation can also occur as it is believed that properties near the coast should not have insulation installed in the first place.
There can be an increased risk of rain penetration if a cavity is fully filled with insulation. Rainwater can penetrate the outer layers of brick leading to the cavity insulation becoming wet. This then leads to the moisture transferring to the inner leaf of the cavity and causes it to become wet. This then leads to reduced heat and damage to internal furnishings in your home, especially if they are close to the wall.
When a property has been flooded, the cavity wall insulation can become wet and is likely to dry out leading to problems of damp inside a property. Similarly, in the event of a fire, the high levels of water used to extinguish the flames may also water-log the cavity wall insulation, as well as the fire damaging the insulation itself in the blaze. This may be potentially dangerous, as the material may emit gases as it is burned.
If the insulation has been installed poorly, there can be gaps where the insulation hasn’t reached as not enough was pumped into the cavity. Some problems which you may have noticed include:
• Cold spots on external walls
• Internal damp problems
• Mould growth
• Damaged cavity wall insulation
• Wet cavity wall insulation
If your cavity wall installation has any of these problems, contact us today for help and advice.