Water Calculations

Looking for water efficiency calculations to satisfy Part G of the building regulations?  We can help.

Water Calculations – What Are They?

Water calculations or water efficiency calculations  provide you with results based on occupancy, fittings and flow rates.  

water calculations

When building or converting a home you need to comply with Part G of the building regulations.  This states that the water use should not exceed 125 litres per person per day. However, some developments may need to meet a tighter targets depending upon planning conditions.

If your property does not comply this will have a negative impact on your SAP rating and may stop your SAPS from complying.

This is why it is important to achieve water calculations standards.

How Are The Water Calculations Produced?

We base our water efficiency calculations on the methodology in the Approved Document G –Which is the Governments national calculation methodology.

When calculating water efficiency we will review your plans and use flow rate information from:

  • Toilet
  • Baths
  • Showers
  • Taps
  • White Goods

What’s The Process?

First, we take a look at your plans then using the information you give us above, we calculate the water efficiency of your dwelling.

Once calculated we will issue you with the required documentation for you to give to building control.

If your property does not comply with the regulations, we will offer our recommendations to enable a pass.

Ready To Discuss Your Water Calculations?

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