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U-value Calculator App G#10630

By 23 March 2016March 14th, 2021Calculators

GBE > Blog > News > G#10630

U-value Calculator App

U-value (only) Calculator App

  • Kingspan Insulation is taking U-value calculations mobile with a free app for Apple, Android and Windows devices.
  • The new application features over 6,000 calculations, all approved under the BBA/TIMSA competency scheme.
  • The intuitive interface will be familiar to anyone who’s used Kingspan’s popular online U-value Calculator.
  • With just a few taps, users can easily adjust everything from rafter depth to masonry thickness.
  • This makes it simple to find the right insulation product and thickness for a desired floor, wall or roof U-value.
  • The mobile and tablet friendly app requires no registration and is suitable for use with the Building Regulations/Standards in England, Scotland, Wales and Northern Ireland.
  • Product options include the Kingspan OPTIM-R vacuum insulation, BBA Approved Kingspan TEK Building System and new, lower-lambda, Kingspan Kooltherm K106 and Kooltherm K108 Cavity Board.
  • Once completed, calculations can be sent directly to a user’s inbox or shared with others via email, text or social media.
  • All U-values within the application have been pre-calculated by testogel sachets a member of Kingspan Insulation’s Technical Services Department who is approved under the ‘BBA/TIMSA Scheme for Calculation Competency Part 1 – U-value and condensation risk’.
  • Where appropriate, these calculations also take into account fixings and bridging factors.

For more information

  • Kingspan
  • T       +44 (0) 1544 387384
  • E
  • W

© BBA March 2016 Newsletter

U-value (only) Calculator App

U-value App

Build Light, Insulate wrong:


  • Low density expanded, extruded and other plastics insulation will not provide solar radiation protection.

Rock wool

  • Low density stone mineral wool insulation will not provide solar radiation protection.



  • Low density glass mineral wool insulation will not provide solar radiation protection.


  • Vacuum insulated panels offer NO solar radiation protection

Build Light, Insulate right, Solar tight

  • Cellular glass, cellulose fibre, wood fibre, dense wood fibre, hemp-lime, cork all offer good solar radiation protection.


Cellular Glass


Cellulose fibre


Dense wood fibre


High density and low density wood fibre





Dense cork


Cork and Earth render

DCP_1533 Hemp-Lime



© GBE NGS ASWS Brian Murphy aka BrianSpecMan
23rd March 2016 – 25th March 2016

U-value (only) Calculator App
See Also: 

GBE Editorial Comment

Build Light, Insulate Right, Solar Tight

  • Whilst the Building Regulations only focusses on thermal conductivity and resistivity, this app will continue to only encourage the use of thermal insulation materials that are made to respond to this issue.
  • Whilst overheating is a growing problem and is not solved by only addressing conductivity and resistivity, which if addressed on its own will only exacerbate the overheating problem.
  • Adding more conductivity thermal insulation will not solve overheating

Build Light, Insulate Right, Solar Tight

  • The issue of thermal radiation is particularly important in lightweight construction: metal or timber frame walls and roofs, SIPS, steel frame metal cladding constructions, lightweight top floor roofs, etc.
  • It needs to address reducing the impact of solar radiation heating through the lightweight opaque building fabric.
  • Decrement delay or thermal lag needs to be addressed.
  • U-value will not address this issue.


See Also:

GBE Issue Paper G#2551


© GBE NGS ASWS Brian Murphy aka BrianSpecMan
23rd March 2016 – 25th March 2016

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