Exterior Wall Insulation

External insulation involves fixing insulating materials such as mineral wool or expanded polystyrene slabs to the outer surface of the wall. The insulation is then covered with a special render to provide weather resistance. A steel or fibreglass mesh is embedded in this render to provide strength and impact resistance.

External wall insulation systems are protected with a weatherproof finish, usually a render, but can comprise brick slips, tiles and decorative boards. Insulating render can also be an advantage in certain locations.

The use of external, rather than internal insulation offers a number of practical advantages:

• There is little or no disturbance to the occupants and the possible additional cost of temporary re-housing is avoided.
• The problems of insulating around or behind internal fittings eg. in kitchens and bathrooms, but also cupboards, shelves, power points etc are avoided.
• Potential cold bridges at all internal/external wall and ceiling junctions are reduced.
• In a complex building, it is easier to ensure that the whole of the external surface is insulated, thus increasing thermal efficiency.

Acoustic Insulation	Airtightness Products	Aluminium Foil	Batt Insulation	Blanket Insulation
Cavity Closer	Cavity Wall Injection	Dry Lining	Foam Spray Insulation	Insulation and Timber Composite
Rigid Board Insulation