
Firecertificate (SWE)
Firecertificate (ENG)
ASTM E-84 Fellert Alpha
ASTM E-84 Fellert Ultra
Ultra – Our premium acoustic system for ceilings and walls
Fellert’s Premium System is named Ultra. This product’s surface structure is remarkably smooth, in principle like a gypsum board. It is made to improve acoustics, to be applied in ceilings and on walls.
Apart from that the surface structure is “painted”; Fellert Ultra has the same acoustic and physical properties as Fellert Alpha. The Ultra is entirely independent of exterior conditions regarding sound absorption, it could be applied in ceilings and on walls and shaped into vaults, cross-vaults, arches etc. and be painted in optional colour within the NCS-, or RAL-scale.
Surface structure:
The Ultra is available in the following surface structure. Please observe that the photo is taken in ca X2 enlargement, and that it also has a slightly grey shade. In the original photo it is completely white.



