U-Value Calculator
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U-VALUE CALCULATOR
VERSION 1.5.4
Construction Types
Ground Floors
Suspended - Timber
Step 3.
Construction build-up for calculations
Suspended - Timber
Floor deck - timber
Polythene, 500 gauge separating layer
--- please select insulation between joists @ 400 ctrs ---
Celotex TB4000 20.0mm
Celotex TB4000 25.0mm
Celotex TB4000 30.0mm
Celotex TB4000 40.0mm
Celotex GA4000 50.0mm
Celotex GA4000 60.0mm
Celotex GA4000 70.0mm
Celotex GA4000 75.0mm
Celotex GA4000 80.0mm
Celotex GA4000 90.0mm
Celotex GA4000 100.0mm
Celotex XR4000 110.0mm
Celotex XR4000 120.0mm
Celotex XR4000 130.0mm
Celotex XR4000 140.0mm
Celotex XR4000 150.0mm
Celotex XR4000 165.0mm
Celotex XR4000 200.0mm
Spacesaver 100mm
Spacesaver 150mm
Spacesaver 170mm
Spacesaver 200mm
Spacesaver Lite 100mm
Spacesaver Lite 150mm
Spacesaver Lite 170mm
Spacesaver Lite 200mm
Spacesaver Plus 100mm
Spacesaver Plus 150mm
Spacesaver Plus 200mm
OR
Timber joist depth (mm)
Ground