Ever find yourself asking the question – do I need to insulate my basement walls? In an era of energy price hikes, considering whether your existing insulation is functioning effectively is paramount-and can ultimately save you money.
Let’s imagine the outside temperature is -5°C on a blistering cold Winter’s day. Ground temperature below the frost line is around 10°C, and the temperature in your toasty house is around 20°C.
As we all know, heat travels from warmer areas to cooler areas, therefore your conditioned heat will travel to colder areas of your house – i.e. the basement or loft.
Your basement will then slowly radiate heat into the soil outside, through its concrete walls. This thermal bridging will happen aggressively too as the heat attempts to reach the -5°C air outside.
Even in the warmer months of Summer, ground level below 4 feet tends to stay around the 10°C mark, meaning the soil outside your basement walls is colder than your interior.