High performance floor perimeter upstand insulation Celotex US4025 is suitable for concrete slab, beam & block and underfloor heating flooring applications when using Celotex FI5000
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IMPORTANT: We have recently identified a compliance issue relating to our calculation and testing of the lambda value of products in our 4000 and 5000 range and the Crown-Bond and Crown-Fix products within Crown Flat Roofing range. Please note that US4000 manufactured after 15 December 2017 will be marketed from January as Celotex US3000 with a declared lambda value of 0.023 W/mK.
Please use the link below to read our full statements regarding declared lambda:
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Celotex US4025 is our premium performance PIR solution for floor perimeter upstands suitable for use with Celotex FI5000.
Celotex US4025 is manufactured from rigid polyisocyanurate (PIR) using a blowing agent that has zero ozone depletion potential (ODP) and a low global warming potential (GWP).
- Board size: 1200 x 2400mm
- Thickness : 25mm
- Lambda: 0.022 W/mK
- Facer: bi-laminate
With Celotex US4025 you are specifying an insulation board that achieves the following:
- Low thermal conductivity value of 0.022W/mK
- Designed to limit the thermal bridge at floor junctions
- Has a compressive strength value of ≥120 kPa
- Is easy to cut and install