Don’t know if your house qualifies for standard cavity insulation? Scroll down to learn about the criteria for cavity wall insulation.
Why Consider Cavity Wall Insulation?
Most houses in the UK that were built after the 1920s have cavity walls. A cavity wall is different from a solid brick wall in the sense that it is made up of two walls and sports a gap (cavity) in between. Cavity walls help prevent inner wall dampening but the problem is, heat can escape through the cavity. Cavity insulation helps reduce this heat loss, thereby resulting in lower energy and heating bills. Generally speaking, most houses built from 1990 onwards feature wall insulation to keep the heat in.
Condition of Brickwork and Cavity
Consult a registered to determine whether your property is eligible for cavity insulation installation. The registered installer will use a boroscope to determine if walls are hollow or filled. He will also check if your property meets other criteria – for example, if the cavity is clear or rubble and if it is at least 50 mm wide. For standard cavity wall installation, the masonry of your property should be in good condition. The installer will also want to determine if walls are exposed to driving rain and if your house is at risk of flooding.
Issues That May Need Resolution
Registered cavity insulation installers conduct an initial survey to determine if issues such as damp walls or debris in cavities need to be resolved before the installation process. Also, there are different materials that can be used for cavity wall insulation such as mineral wool, polystyrene beads and polyurethane foam – a survey will help determine the best solution. For example, if your house is at risk of flood or the walls are exposed to driving rain, polyurethane foam insulation is a better option than standard cavity insulation.
Independent or Adjoined?
Another factor that’s taken into consider is whether the property is an independent one or adjoined. If the outside walls of your house are adjoined to the walls of your neighbour’s house, the installer may recommend installing a cavity barrier to ensure neighbours aren’t affected. If you reside in a flat, you will probably need the permission from all the owners of your block to insulate the entire block.
Make sure to hire a registered and certified installer for the best guidance, application and after-service support!