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Thermal Bridge Analysis (Psi Value Modelling)

Bespoke 2d & 3d Psi Value Modelling & Calculations

Thermal bridging is a major contributor to heat loss within buildings, typically as much as 30% heat loss occurs through thermal bridges in typical construction methods. Our assessors are able to design out thermal bridges and provide solutions to any junction or thermal bridge that will help lower heat loss, improve your SAP rating and of course improve the indoor thermal comfort levels for the occupants.

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With the removal of Accredited Construction Details (ACD's) in 2022 designers and builders are now required to provide independent third party calculations for the proposed junctions and thermal bridges within the dwelling. Failure to do so will result in poor default values having to be assumed within the SAP calculation which will most likely cause most SAP assessments to fail the minimum fabric efficiency standards.

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Typical thermal bridges included in most newly constructed homes include:-

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  • Ground Floor / Wall Junction

  • Window & Door Openings (head, jambs & cill)

  • Intermediate Floor Junctions

  • Roof at Eaves

  • Roof at Gable

  • Flat Roof Perimeters

  • Internal & External Corners

  • Parapets

  • Party Wall Junctions

  • Party Floor Junctions

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If you want to know more about Psi Value visit our Psi Value Explained page for a greater in depth look at the benefits of using Bespoke Psi Values.

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What's Involved?

Why Use BEAT?

  • Discounts for multiple junctions

  • We can provide both 2d & 3d Psi Value calculations

  • All calculations are in accordance with BRE BR 497

  • Experienced and qualified assessors

  • Expert Advice for best results

  • Fast turnaround available (ask about our express service)

  • Detailed reports provided in pdf format

  • A dedicated assessor from start to finish

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  • When should I get my SAP?
    Quite simply, the earlier we are involved, the more influence we can have on easily incorporating small changes with minimal cost which can make big impacts and huge savings in build cost and carbon.
  • How long does it take to get a SAP calculation?
    Generally a SAP calculation takes about 2-3 days to produce, we suggest however you allow 1 week from appointment to allow for busy periods.
  • What do you need to produce a SAP?
    We require drawings including plans, sections, elevations and site plan together with a proposed specification for the materials and insulation together with the heating and hot water appliances.
  • What happens if my design fails?
    Even if your proposed design and specification fails we will provide you solutions and recommendations to successfully achieve a PASS free of charge!
  • How to get a quote?
    Just send us your project drawings via email to info@beatsolutions.co.uk or use our quote request form and we'll send you an electronic quote by return.

Frequently Asked Questions

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