External Wall Insulation 2017-08-17T13:13:54+00:00
  • Expanded Polystyrene Boards
    While these are suitable for insulating floors, they do not insulate as effectively as other materials when used for external wall insulation, so a greater thickness is required to insulate an external wall. This type of insulation material can give off toxic gases in the event of a fire, so particular care must be taken to ensure it is sealed in correctly, which is difficult around door and window frames.
  • Phenolic Foam Boards
    Phenolic foam boards offer better insulation than expanded polystyrene, so a thinner layer of insulation can be used to offer the same amount of insulation which is particularly important when retro-fitting homes.
  • Mineral wool
    This material is rather like the fibreglass roll in your loft, but compressed into hard workable pads or panels. Mineral wool has a similar thermal rating to polystyrene but has much better fire proofing qualities.
  • Polyisocyanurate Panels
    Polyisocyanurate, also referred to as PIR, polyiso, or ISO, is a thermo set plastic typically produced as a foam and used as rigid thermal insulation. It has a high thermal efficiency, so the panels are relatively thin.
  • Fixing External Wall Insulation
    On level walls, the boards can be fixed using plastic plugs and anchor bolts. On walls which are not even and level, a bonding adhesion coat is used to level the boards. Once the bonding has been left to set for 24 hours, plugs and pins are used to further secure the boards.

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