Loft insulation

A quarter of a home's heat is lost through the roof, so insulating the loft can make a big difference to your thermal comfort and to your heating bills.

The recommended depth for mineral wool insulation – the most common material, pictured left – is 270mm (about 1ft), but there are other materials (usually more expensive) which require different depths. Even if you have some insulation in your loft you may benefit from a top-up to bring it up to an efficient standard.

Lofts need to be cleared of any belongings before the insulation can be laid out.