Exposed floor 3: non-visible joists

Construction
- 25-mm particle board fastened via screws
- Joists 220/60 mm; on-centre 62.5 cm
- Cavity insulation 100 mm, e.g. GUTEX Thermoflex
- Battens 41.5 cm on-centre, fastened via screws
- 12.5-mm plasterboard board fastened via screws
Application
- New building
- Refurbishment