Lots of older properties have lath and plaster external walls, which can easily become damp, and let cold air into the home.
Exterior walls of this type aren’t ideal, and aren’t often installed anymore, but there are ways to ensure homes like this don’t become too cold or attract damp and mould – and that is to install specialist lath and plaster walls insulation.
Insulation on the exterior of a house works differently than that internal equivalents. Applied by industrial equipment as a chemical spray, exterior wall insulation is sprayed directly onto the wall – be it brick, plaster, lath, concrete or stone.
The spray is invisible, and forms a thermal barrier against the wall; preventing moisture from passing through.
The pores in porous materials normally hold air within them, but in countries like the UK, where there’s lots of rainy weather, these pores are often filled with water instead, which conducts through cooler temperatures, and can accumulate dust, dirt, allergens, algae and mould.
External Wall Insulation Offers Additional Protection
Exterior wall insulation spray reduces the thermal conductivity of a wall by over 95%, acting instead as a terrific thermal barrier.
You should still look to have insulation installed in your internal wall, floor and ceiling cavities, but having an external protection as well as internal ensures that your existing insulation can work to its full potential.
The difference in temperature will be noticeable almost immediately, and will continue to drive down your bills.