More homes today are opting for improved loft insulation, and this is hardly surprising, considering that with loft insulation, you have the opportunity to have lower energy bills – as shown by energy experts like npower. Another factor that makes enhancing loft insulation more popular is that it’s a job that’s easy to do – if you are good with DIY projects, you can do it yourself, but if not, a professional installer can generally do it for you in less than a day.
But even if you are not laying down loft insulation yourself, it always pays to know more about the different loft insulation materials that are available. This way, you can make a better decision when it comes to the right material for your needs.
The four kinds of loft insulation material
There are basically four types of material you can choose from: matting, loose fill, blown, and rigid boards.
The first type, matting, is also referred to as quilt or blanket insulation, and can arguably be considered the most common and easiest to lay down. The matting comes as a roll with various thicknesses, and it also comes in materials such as mineral wool or sheep’s wool. Matting is ideal for insulating a loft which is empty, as it just needs to be laid on the floor.
Loose Fill Insulation
The second material is loose fill insulation material, which is commonly comprised of mineral wool, cork, vermiculite, or cellulose fibre pieces or granules that come in bags. This material is poured in between the loft’s joists, and works well with lofts that have irregular joisting or obstructions.
Blown Loft Insulation
Blown loft insulation is another option when it comes to materials, and it is made often from cellulose fibre which is also fire-retardant. It can also be made from mineral wool or recycled paper. The thing about blown insulation is that it can only be installed by a professional installer, as it makes use of special equipment which blows the material over the area until it reaches the ideal depth.
Rigid Boards Insulation
The fourth option with regards to loft insulation materials is rigid boards, which are also used for the insulation of ceilings and walls apart from floors. These boards are comprised of polystyrene or other foamed plastics like polyurethane or polyisocyanurate. If the loft space or area is limited, a rigid insulation board can be the best choice. You just have to make sure that the installer does a good job of fitting the boards to just the right size according to the space.
How thick does the insulation need to be?
The general idea is that thicker insulation (around 270 millimetres) is better than thin insulation. With thicker insulation, your home will not only lose less heat. If you have existing loft insulation which is around 100 mm thick or less than 270 mm, it would be a good idea to add to it until it reaches 270mm.