Do you need to provide water calculations for building regulations or the Code for Sustainable Homes?
Building regulations demand that new builds meet the minimum 125L litre per-person-per-day limit. If the development is subject to the Code for Sustainable Homes, you will also be required to reduce internal potable water use further through the Wat 1 category. Each Code level sets a mandatory limit on internal water consumption – this is demonstrated by producing calculations, based on occupancy, fittings and flow rates within the water efficiency calculator.
The current limits are set as follows:
There are also credits available for meeting these targets.
A number of measures can be taken to reduce indoor water use. Flow restrictors are a convenient means to retrofit existing fittings. Low flow shower heads, low flush wc’s or even smaller baths may be fitted. Efficient appliances, grey water and rainwater recycling can also be specified. We can suggest solutions and products which are efficient, practical and cost effective.
Our bespoke Part G water calculations are based on “The Water Efficiency Calculator for New Dwellings” – The Governments national calculation methodology. This provides clear, concise information for both you and Building Control – meaning that you get signed off quickly and easily. We will receive:
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We understand the building compliance process can be confusing. To discuss and advise on your project requirements call us on 0161 7060057.