The code for sustainable homes is the national standard for the sustainable design and construction of new homes. It aims to reduce carbon emissions and promote higher standards of sustainable design above the current minimum standards set out by the building regulations.
Although only a ‘zero rated’ certificate is required which is usually ignored by everyone, many local planning departments are imposing regional requirements, such as a CfSH level 3 or level 4 rating.
The CfSH is an environmental assessment method for the rating of new homes, covering nine categories that must be assessed:
- Energy and CO2 emissions
- Surface water run off
- Health and well being
Each category is further sub divided into issues, of which there are 39 in total. Each issue earns credits. The credits in each category are converted into points, based on a weighting factor.
Consequently some categories credits score more points than others, for example one energy credit is worth 1.17 points whilst a materials credit is worth only 0.3 points.
The total number of points (not credits) determines the final ratings, i.e. 57 points is level 3, 68 points is level 4, 84 points is level 5 and 90 points is level 6.
To further complicate things, there are some mandatory credits required to attain various rating levels.
Hibec Ltd are experienced assessors with a practical understanding of the Code, category weightings and the difficulty of achieving various issues. Consequently we can help you target the easiest, cheapest and highest scoring issues to ensure you get the required rating as cost effectively as possible.
We can also co-ordinate the Part L compliance documentation, Part G water calculations and undertake the compilation of Home User Guides to make compliance as easy as possible.
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