Technical Guide
BEFORE you spend big on the efficiency of your dream home, MEASURE!
Building performance measurement can help you understand heat loss, insulation, air leakage and ventilation - so you can tackle the right problems, make better choices and check that completed work delivers the improvement you expected. Whether you're building a new home or improving an existing one, knowing how it's actually performing helps you make better decisions, fix the right problems and spend your money where it matters most.
What brings you here?
- Self Builder: Check your new home’s performance.
- Home Improver: Make your renovation budget go further.
- Property Professional: Give your recommendations the evidence they deserve.
Self Builder: Will my home perform as well as it should?
Good design deserves proof. You have invested time, money and care in creating an energy-efficient home. Measurement helps you check whether the finished building delivers the performance you planned.
Testing at suitable stages can help identify issues while they are easier to address, with further checks once your home is complete or occupied.
What can you check?
- Insulation performance: Investigate whether elements of your home are performing as expected.
- Airtightness: Measure air leakage and use diagnostic checks to investigate unwanted leakage paths.
- Ventilation: Check that installed systems deliver the intended airflow.
- Overall heat loss: Understand how the completed home performs in use.
Find a tester for your new home
Home Improver: Where will my money make the biggest difference?
New insulation, replacement windows or a heat pump can be a significant investment. Understanding your home’s current performance gives you a stronger starting point for deciding what to do first.
Measurement can help distinguish between problems that feel similar such as a room that loses heat through poorly performing fabric, and one affected by draughts which may need different solutions.
Before you spend:
- Understand your home’s heat loss.
- Investigate insulation performance and unwanted air leakage.
- Consider ventilation alongside draught-proofing and insulation.
- Give your adviser or installer measured evidence to inform their recommendations.
Find a tester to help guide my retrofit
Property Professional: How can I give my clients greater confidence?
Your clients want to know that your recommendations are right for their property and that their investment will deliver value.
Measured evidence helps you explain the starting point, support your recommendations and demonstrate changes after the work.
Whether you design, build, install or advise, building performance measurement can help you:
- Support insulation and heating decisions with evidence.
- Investigate comfort and performance concerns.
- Check airtightness and ventilation.
- Demonstrate the results of completed improvements.
- Develop an additional testing service or work with a testing partner.
Help me deliver building performance measurement to my customers
What do I need to measure?
