The loft is one of the loft insulation building regs areas where heat is lost from your home – without insulation, up to 25% of your heat can escape from your roof. As such, it’s vital to make sure it is well insulated. This not only helps to reduce your energy bills but also improves the quality of your living environment.

If you’re in the process of a loft conversion then it is advisable to follow building regulations and meet the recommended standards for thermal efficiency. Part L of the building regulations covers loft insulation and sets out the minimum requirements for a given U-value.

Whether you’re in the process of a new build or renovation, the aim should be to achieve a U-value of 270mm for blanket loft insulation (mineral wool or glass wool) or greater. This ensures that your roof space is well insulated to minimise heat loss and help to lower your energy bills.

From Standards to Savings: How Building Regulations Impact Loft Insulation Projects

There are a number of different options for insulating your loft. They can be rigid or semi-rigid, such as the familiar rolls of insulation which are stuffed between the rafters or more loose-fill materials like cellulose, polystyrene beads and cellulose foam which are blown into place. For larger gaps, there are also spray insulation options such as Celotex and Kingspan which are gas based and can insulate more effectively than blanket type materials.

For the best results, it’s worth making sure the loft hatch is also insulated as this will help to further minimise heat losses. This can be done using a Kooltherm K107 Pitched Roof Board and again, this will help to create a continuous insulation layer throughout your loft.