Cavity Wall Insulation Damp

Can cavity wall insulation cause damp?

Damp Cavity wall insulation

Can cavity wall insulation lead to damp problems? If the insulation is not properly installed, then cavity wall insulation damp problems can occur. That said, cavity wall insulation, when done correctly, can be a cost effective way to reduce heat loss from your home, and can be a wise investment for a lot of properties.

Firstly what is cavity wall insulation?

The walls of most buildings will either be constructed with solid walls or cavity walls. A cavity wall has a gap (usually 50mm wide) between the outer and inner wall. Cavity wall insulation refers to the process of filling this gap with insulation material such as mineral-wool fibre, beaded polystyrene or foam.

If the property is already built, installing cavity wall insulation typically involves drilling holes of around 25mm through the outer walls and pumping in the insulation material to fill up the cavity wall. The holes are then filled with materials that should match your properties brickwork. 

Cavity wall insulation may take several hours to install depending on the size of the property. 

What causes cavity wall insulation to become damp?

Any problems with cavity wall insulation typically arise due to poor installation or a lack of attention to the properties suitability in having the cavity wall insulation fitted in the first place.

Cavity wall insulation works by reducing heat escaping from a property home, as one third of heat within homes is lost through the walls. However, if gaps are left in the insulation, then these gaps will remain cold. The moisture in the warm air trying to escape your property will rest in these cold patches potentially resulting in condensation problems like black mould  developing inside the cavity wall. Overtime, this build up of moisture may migrate to the inner walls of your home causing symptoms akin to penetrating damp.

To add further misery to the situation, if the insulation within cavity wall becomes damp, then it will start to draw heat from your property. Damp insulation is worse than no installation at all.

Contact a Damp specialist

Here at Wise Property Care we can remedy damp problems that occur from poorly installed cavity wall insulation. If you are suffering from cavity wall insulation damp, contact Wise Property Care today on 0800 65 22 678. Alternatively, click the button at the bottom of the page to request a property survey online.

We will arrange for one of our fully qualified damp specialists to visit your property and assess the damage before providing you with damp treatment options.

We are the country's leading damp specialist and the only one in the UK to be regulated by the RICS so you can be assured you are dealing with a reliable, reputable and professional group of tradesman.

Arrange a property survey today