Converting a loft for energy efficiency

The process of converting a loft usually falls into the following stages.

1. Reviewing the options, and preparing an outline design.

2. Obtaining planning permission.

3. Preparing a detailed design and specification.

4. Obtaining building regulations approval.

5. Selecting a builder.

6. Construction.

The main opportunity to ensure a high standard of energy efficiency occurs at stage 3, when the detailed specifications for materials and products are prepared. However, it should also be borne in mind at stage 1, because the form of the conversion affects its energy efficiency. The quality of the builder's work (stage 6) can have a significant impact on the effectiveness of the insulation and the degree of air-tightness, which will in turn affect both energy efficiency and comfort.

When converting a loft, it may be worthwhile to improve the energy efficiency of the rest of the house at the same time.