Insulation boards are often formed from PIR sheets, polystyrene, wood fibre or phenolic foam. These insulation sheets are often large and ideal for wall and floor insulation.
PIR insulation is the most efficient insulation material used in construction. Can also be known as 'polyisocyanurate'. PIR offers high thermal performance and there are products available now which give fantastic thermal conductivity from thin boards.
PIR comes in easy-to-install boards that are simple to work with and easy to cut.