Celotex Isover

External Wall Insulation

U-value Calculator
Start your U-value calculation >
Use the calculator

The external walls of a building are an important part of a building’s overall design, and since there are a variety of different ways to construct an external wall with a range of building materials it should come as no surprise that there are many different ways to insulate them.

External walls make a vital contribution to the thermal, acoustic and fire performance of the building envelope. Depending on the exact performance requirements dictated by the building’s design and intended use it may be that one particular method of constructing the external walls is required – and this in turn may mean that one particular type of insulation would be the preferred choice for the external walls of the building.

Saint-Gobain Insulation UK manufacture and supply glass mineral wool slabs and rolls, stone mineral wool slabs and rolls along with rigid Polyisocyanurate (PIR) boards that can be considered suitable for a wide range of applications across solid masonry walls, masonry cavity walls, timber-framed walls, steel framed walls, rainscreen cladding walls and prefabricated walls.