What is Internal Insulation?

Also known as ‘dry lining’, this is an alternative and cost-efficient method where insulation is applied to internal walls, floors and ceilings.Up to 35% of heat loss from the average home escapes through wall spaces if not properly insulated. Internal insulation is a suitable solution for many homes in particular older homes with solid walls where cavity wall insulation is not an option. In recent years this method is also being increasingly employed on new builds over standard skimming/plastering to further improve energy performance.

Typically, this system involves installing thermal insulation between either metal stud or timber stud supports attached directly to your internal walls, which is then covered by foil-backed plasterboard. Types of insulation material used include expanded polystyrene, fibreglass and polyurethane boards. Alternatively, composite boards of insulation and plasterboard are glued/fixed directly to your internal walls.

Grant Info

Why choose internal wall insulation?

  • External walls are not insulated or badly insulated
  • External walls are not weather-tight resulting in draughts/heat loss
  • Your home is cold and prone to condensation & mould
  • Your budget does not stretch to cover external insulation
  • Where installing external insulation would adversely affect the appearance of the building

Benefits of internal wall insulation

  • Improves your BER energy rating
  • Significant reduction in heat loss
  • Homes are easier to heat thus lower energy bills
  • Eliminates condensation and mould growth
  • Gives walls a fresh new look
  • Covers up uneven walls or unwanted building features such as arches