We've added some links and document in this section that might be of use:Good practice and guidance for CfSH (new window).Cost Analysis of the Code for Sustainable Homes. (new window).Code for Sustainable Homes - Technical Guide. (new window).Greener Homes for the Future - a guide. (new window).
Eight inches of insulation in your loft can save around 20% of your heating costs.Source: Self Build ABC