Insulation

Garage conversions typically need extra insulation as the garage space will be converted into a habitable room, and consequently needs to adhere to building regulations for insulation in this type of space. These regulations set a U-value for insulation, which measures the rate of heat loss. These are set differently for walls, flooring, and roofing. To comply with building regulations the garage conversion must meet the U-values in all of the areas, but extra insulation can be added to surpass these values and improve energy efficiency. Wall insulation for garage conversions is typically performed by using internal wall insulation, which adds insulated plasterboard to the pre-existing walls. This will add thermal insulation and prevent heat from dissipating through the walls. Insulation must be installed around doors and windows as these areas can leak heat especially severely. Roofs for garage conversions will also require insulation. Pitched roofs will require insulation to the same level as the rest of the property. Flat roofs additionally require insulation. This is achieved by using a cold roof system, where insulation is fixed between the roof joists along with ventilation to avoid condensation forming. The other option is a warm roof, where insulation is added above the roof joists. Floor insulation is also needed in garage conversions. This is easier if the floor level of the garage requires elevating in order to meet the rest of the house as an additional layer of insulation can be easily added to either a lifted concrete floor, timber joists or a floating floor. If flooring does not need to be raised it might be necessary to dig out the floor to add the required insulation.