Non-exposed wood joist ceiling - insulation over partly insulated substrate
![](fileadmin/_processed_/csm_6-3-konstruktion_dd8df5b4a1.jpg)
Construction
- Sub-floor board ≥ 13 mm
- GUTEX Thermosafe-homogen
- Vapour retarder/ Air barrier
- Original boarding / Sub-floor board
- Joists
- Original cavity insulation 100 mm
- Original wood wool board w. render
Top storey spaces whose ceilings are insulated with Thermosafe-homogen are not suitable for use as living areas.U-value requirements (as per EnEV 2014): ≤ 0.24 W/m²K
Application
- New building
- Refurbishment