The TONISinnen insulation system offers an intelligent solution for ecological interior insulation. It is particularly suitable for buildings with protected or valuable facades, providing a sensible way to insulate the building without altering its appearance. The system is based on various clay building boards. All boards consist of a soft wood fiber board that is pre-coated with clay plaster at the factory. An integrated reinforcement mesh prevents stress cracks. The boards are available with and without heating/cooling pipes, for self-installation or as a complete package with installation, and of course with all necessary accessories.