AluK's 58BD window range further endorses its position as the most pioneering and benchmark setting aluminium window system by achieving Level 4 - Code for sustainable homes. Level 4 requires a system to offer a 44% reduction in carbon emissions.

As from the 27th February 2008 the Government confirmed that from 1st May 2008 it would be mandatory for all new homes to have a rating against the Code for Sustainable Homes.

The Code for Sustainable Homes (CSH) has 6 levels. Each level is an increasing reduction of carbon emissions, for example, Level 1 requires a 10% reduction of the Target Emission Rate (TER), Level 3 requires a 25% reduction, and Level 6 requires a 100% reduction and is deemed a 'zero carbon' structure.

Under the new CSH rules, a local Planning Officer has likely requested your planning application complies with one of the 6 Levels mentioned above. In fact many Local Authorities have by-passed Levels 1 and 2 and have a minimum requirement of Level 3 on all Applications. To submit a planning application, you will need to either supply 'Pre-Assessment CSH' or, a full CSH to the required Level (1-6). Your Planning Officer will be able to inform which option is best.

The Code aims to protect the environment by providing guidance on the construction of high performance homes built with sustainability in mind.