Loft insulation: up to a quarter of your home’s heat escapes through the roof; you can solve this by laying mineral wool under the rafters.
- Roof and loft insulation @ Energy Saving Trust
Excerpt: Heat rises, and in an uninsulated home a quarter of your heat is lost through the roof. Insulating your loft, attic or flat roof is a simple and effective way to save that waste and reduce your heating bills – you can even do it yourself. Loft insulation is effective for at least 40 years, and it will pay for itself over and over again in that time.