Mr Karol from near Krakow used Unifit 33 wool to insulate a suspended ceiling. This product has an exceptionally low lambda of 0.033W/mK.
Wool for suspended ceiling Knauf UNIFIT 33 150mm, Raciborsko, Poland
Features:
The thermal conductivity coefficient lambda λD is 0.033 W/mK and the density of this wool is 29 kg/m³. Stone wool boards for use on the exterior and interior of buildings for thermal, acoustic and fire insulation. Other available thicknesses in mm: 50, 80, 100, 120, 140, 150, 160, 180, 200
Usage:
LOFT
Mineral wool for thermal insulation and insulation in usable and non-usable attics and lofts: above the rafters, between the rafters, under the rafters as well as suspended ceilings and knee walls (so-called dry construction).
PARTITION WALLS
Mineral wool for insulation and insulation of walls from the inside, construction of partition walls, pre-walls, partition walls and industrial pre-walls.
FRAME CONSTRUCTIONS, CEILINGS, FLOORS ON JOISTS
Mineral wool for insulation and insulation of: floors on a grid, industrial ceilings, ventilated flat roofs, floors on joists on a wooden or steel structure, suspended ceilings, external and internal walls of frame houses and wooden houses.