Vicoustic Wall/Ceiling Flat Panel VMT with Concrete, Pattern 1 (46.85 x 23.43 x 0.787", 8-Pack) - Manual (Page 7)

EN For the installation of Flat Panel VMT on the ceiling, we recommend
using Flexi Glue Ultra.
!
Do not apply Flat Panel VMT behind radiators or too close to a heat
source.