Insulation

Garage conversions typically need extra insulation as the garage space will be changed into a habitable room, and consequently needs to comply with 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 adhere to building regulations the garage conversion must meet the U-values in all of these areas, but supplementary insulation can be installed to exceed these values and increase energy efficiency. Wall insulation for garage conversions is normally performed by making use of internal wall insulation, which adds insulated plasterboard to the existing walls. This will add thermal insulation and prevent heat from dissipating through the walls. Insulation must also be installed around doors and windows as these areas can leak heat especially severely. Roofs for garage conversions will additionally require insulation. Pitched roofs need insulation to the same standard as the rest of the property. Flat roofs also require insulation. This can be performed using a cold roof system, where insulation is fixed between the roof joists along with ventilation to avoid condensation forming. The other possibility is a warm roof, where insulation is added above the roof joists. Floor insulation is also required in garage conversions. This is easier if the floor level of the garage requires lifting 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 elevated it might be necessary to dig out the floor to add the necessary insulation.