Damp & Mould Problems

Damp & Mould Problems2021-12-06T15:23:37+00:00

Cavity Wall Insulation (CWI) Damp & Mould Problems, Defects Investigations

There has been growing concern amongst individual homeowners that inappropriate installation of cavity wall insulation has seriously damaged their homes. This is gaining coverage in regional and national press and is regularly debated within Westminster.

Fig 1. Internal Damp and Black Mould

Fig 2. Internal Damp and Black Mould

The Telegraph reported on February 14th 2015 that the cavity-wall insulation crisis may hit three million homes and commented on a Parliamentary debate about the extensive problems of dampness and mould caused by cavity wall insulation (CWI); and suggested that the retro-fitting of CWI might come to rival the endowment mis-selling scandal, or even Payment Protection Insurance.

The funding mechanisms over the years have had historically excessive peaks and troughs in the amount of money available, this feast or famine pattern has encouraged the growth of unscrupulous contractors who saturate the market with inappropriate sales techniques and poor workmanship.

Fig 3. Terraced Housing in Severe Wind Driven

Fig 4. Cavity Wall Insulation & Saturated Brickwork

Much of the housing stock in the United Kingdom is made up of large numbers of pre-1919 terraced housing and many are in poor condition and were built with uneven and narrow cavities, without damp proof courses within flood planes or in regions of severe exposure to wind driven rain and have corroded or missing wall ties or are of coursed stone construction. Large numbers of these homes have had cavity wall insulation measures installed and considerable numbers are now experiencing severe internal dampness that is directly attributable to the installation of an insulation product that is not suitable in these types of homes.

Health Issues

Cavity wall insulation is designed to improve the internal comfort, save money and assist residents to keep warm. If the insulation is damp, instead of improving the thermal insulation, it actually makes the situation exceptionally worse, the heat loss is far greater and the dampness caused can have considerable impacts on residents with health conditions that are impacted upon by cold and dampness.

Cold damp indoor environments are known to increase the likelihood of respiratory illnesses such as influenza, pneumonia, and bronchitis. In addition, cold damp conditions in homes can promote the growth of fungi and house dust mites, which have been linked to respiratory conditions such as asthma.

If you have had cavity wall insulation (CWI) carried out on your home which has caused damp, black mould, or health related issues, etc, and you require the assistance of a chartered building engineer please click here to contact us.

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Cavity-wall insulation crisis may hit three million homes