Insulating your loft is a no-brainer, it will save you money on energy bills and up the value of your home. But the depth of loft insulation that you need is vital, as this has a significant effect on how effective it will be.

Building regulations now depth of loft insulation that loft insulation is installed to a minimum thickness of 270mm – and this is often higher in newer properties. However, even if your property is not required to meet this standard, it makes sense from an energy saving point of view for all homes to get their lofts fully insulated.

There are a few different options when it comes to the type of insulation you can choose from. The most popular type is blanket insulation, which can be purchased in rolls and fitted in between the joists of your roof. This will usually be a glass mineral wool or stone wool but there are other alternatives too. If you already have some blanket insulation laid and want to take it up to the optimum level, then you can either lay another layer of blanket insulation between the joists or use loose-fill that can be blown in at a right angle over the existing layer.

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Insulation boards or sheets are another option and these can be more easily fitted between the joists as they can be cut to size. These are usually made from EPS or wood fibre but can also be a more sustainable option using recycled materials such as cellulose. Alternatively, you could opt for spray foam insulation which is more expensive but can achieve in 150mm what blanket insulation can do in 270mm.