There are various depths of insulation available ranging between 100-300mm.The studies show that up to 35% of heat is lost through your roof. This figure directly relates to 35% of your heating costs.So stop your money going out through the roof now!! You can easily reduce this loss of heat and money by insulating your attic with up to 300mm of Earthwool insulation. A return on your investment is instant. We have different insulation packages available to you, from just 380 euro for a 3 bed semi detached house.