Renovation of a wooden ceiling with POLITERM BLU lightweight fill

Composition

1. Laminate or laminate parquet, loosely laid
2. ρ = 300 kg/m³, mesh-reinforced lightweight concrete, thickness ≥ 8 cm (approx. 25 kg/m²), levelling of the surface with mortar and fitted POLITERM BLU facade mesh if necessary POLITERM BLU
3. Vapour permeable felt separating layer, 300 g/m²
4. Wooden ceiling joist
5. STIROTRAK