• Insulate your attic well and save up to 20% on your home heating bill. If your attic insulation is currently less than 200 mm, then you should add further layers. There are a variety of suitable materials including mineral wool, rock wool, sheeps wool, polystyrene, cellulose fibre and multi-layered foil.
  • Wall insulation can be increased in a number of ways. The pay-back period is dependent on a number of factors including type, thickness and quality of existing insulation. The most popular types of insulation systems are, (i) insulated dry lining, (ii) blown mineral or cellulose fibre or polystyrene beads into the cavity, or (iii) rigid external insulation with render or brick finish. Specialist advice should be sought in all cases.
  • Choose double glazed units when replacing windows. Much of the heat loss from a house occurs through the windows particularly if they are single glazed. Significant energy savings can be achieved if double glazing has Argon fill and low-emissivity glass.
  • If replacing the hot water cylinder, a cylinder with factory applied insulation should be considered. Such insulation is more effective at retaining heat than a lagging jacket, is less easily damaged and cannot be pulled out of place.
  • A lagging jacket on your hot water cylinder will keep water hotter for longer and pay for itself in 2-3 months
  • Keep curtains closed at night and ensure that the curtains don’t hang over the radiators.
  • A reflective foil, backed by insulation if space permits should be fixed behind radiators mounted on external walls

Got an insulation question? Visit the SEAI website for Frequently Asked Questions regarding insulation.