Elmhurst Energy Consultancy provides bespoke Psi-Value calculations which can increase the chances of your SAP/SBEM assessments achieving Building Regulation/Standards compliance and can create greater energy savings for your property.
Organising a Psi-Value calculation is quick and easy and is explained in greater detail below.
If you require a SAP or SBEM assessment of your property and do not include a separate Psi-Value (Ψ-value) calculation, then a default Psi-Value will automatically be assumed. This can be typically worse than a property's actual Psi-Value score and may affect whether your property complies with regulations.
Conducting a separate Psi-Value calculation as part of your assessment will provide greater accuracy than the assumed Psi-Value and should increase the chance of your property meeting compliance first time around.
Regardless of whether you include a separate Psi-Value or not, The Building Regulations/Standards stipulate that all SAP and SBEM assessments must include a thermal bridging component, and it is especially important if you are trying to meet higher levels of sustainability.
Psi-Values are used to calculate a building's overall heat loss at a junction (also referred to as non-repeating thermal bridges). This differs from U-Values which only determine the heat loss through thermal elements (walls/floors/windows etc). A thermal bridge is an area of a building that can have significantly higher heat transfer than the surrounding materials and occurs where two thermal elements meet.
The typical 'junctions' that often present greater heat loss include:
Psi-Value Calculations are desk-based, and are created through specialist thermal modelling software.
Call us now on
and discuss your project with us, there’s no obligation and we’re happy to advise you.
Or why not complete our 'Get a quote' form