Getting to Grips with U-Values

What happens when you put two energy experts in a room and ask them to explain the mysterious world of U-values? Oh yes, you guessed it, this week we delve even deeper into the wonderful world of insulation calculations and what they mean for you. Why do you need a U-value and why doesn't it matter? More importantly, what is why and how do you figure it out?!
After that, we discuss the climate change protests sweeping the UK and James drops a B-bomb on Nick. You've been warned, watchers!

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WHAT IS A U-VALUE?
The U-value signifies the heat lost through a given thickness of a particular material. The best insulating materials have a U-value of close to zero – the lower the better. The environmental temperatures inside and outside a building play an important role when calculating the U-value of an element.

WHAT ARE THE MINIMUM U-VALUE REQUIREMENTS FOR NEW BUILDS?
Wall – 0.3 W/m2k
Roof – 0.15 W/m2k
Windows – 1.6 W/m2k

HOW CAN I GET AN OFFICIAL U-VALUE CALCULATION FOR MY PROJECT?
Get in touch with the GreenAge. Give us a call on 0208 144 0897 or send an email to mailbox@thegreenage.co.uk and we'll get back to you as soon as we can.

e it written about all the often, water source heat pumps are indeed part of the RHI scheme. In all the paperwork they fall under the umbrella of a ground source heat pump, but this is very poorly explained so it’s often missed.

SOLAR THERMAL
Also known as solar heating, solar thermal harnesses the energy provided by the sun to provide thermal energy to heat water. Only flat plate and evacuated tube solar panel systems are eligible.

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Read more:

Getting to Grips with U-Values
Thermal conductivity, R-Values and U-Values simplified
How can I improve the thermal comfort of my home?
Demystifying U-values and their effect on the heating demand of your house