SIP Panel U-Value Calculator
Calculate the thermal performance of your UltraSIPs panel
Select the thickness of OSB board on each side
Choose the PIR insulation core used in your SIP panel
Only stocked UltraSIPS PIR core sizes are shown. Example: 172mm SIP panel = 150mm PIR core + 2 x 11mm OSB.
About U-Values
The U-value measures how well a building element transmits heat. Lower U-values indicate better insulation performance. Our SIP panels combine Sterling OSB structural boards with Celotex Sopratherm or IKO Enertherm PIR insulation for exceptional thermal efficiency.
Technical Specifications
- Celotex (Sopratherm PIR): λ = 0.022 W/mK
- IKO Enertherm ALU: λD = 0.022 W/mK (EN 13165)
- Sterling OSB: λ = 0.13 W/mK
- Calculation Standard: BS EN ISO 6946