SHELL by Celenit is the acoustic design solution for buildings. In particular, Shell is a double or triple layer load-bearing panel that combines acoustics and mechanics, ideal for structural applications. The external layer, in structural colaminate, has a high compressive strength, can be walked on, is non-slip and has high traction. The inner layer is our TETRYS panel, a thermal and acoustic insulation panel in extra-thin spruce wood wool, mineralised and bonded with white Portland cement, the surface of which can be customised and perfectly adapted to the style and aesthetic needs of the environment in which it is installed, guaranteeing an internal aesthetic effect. This multi-layered panel is particularly suitable for the renovation and redevelopment of premises, for residential constructions, for the construction of walls, floors and roofs, and for green building. It ensures fire protection, moisture resistance and good acoustic performance, maximising the natural sound-absorbing and thermal properties of the wood.