We apply Thermal board (27mm) to the walls to give extra insulation and a warmer surface to the wall. Thermal insulation is basically insulation to reduce the flow of heat. It keeps hot things hot and cold things cold. Insulation is basically anything that conducts heat slowly, also this helps with condensation problems.
Thermal Insulation Boards are manufactured from different types of thermal insulating material. They are sheets which have insulating qualities, and are placed into buildings where heat loss can be a problem, causing unnecessary economical costs.
They are available in many different sizes, and can be simply cut to fit the desired space, then laid, glued, or fixed into place with the appropriate fixings i.e. nails or screws. Insulation boards are made from various insulating materials, and very commonly manufactured using rigid insulating foam with a thin sheet of reflecting foil adhered to one or both sides.
The areas of a building usually requiring thermal boards or similar insulation applications are the roof, floor and exterior walls. They are generally fixed into the building at the time of construction; however boards are generally not fitted into floors or roofs, and can be applied later on in the buildings development if so desired.