For the first time, at the trade fair BAU 2009 in Munich, Remmers Baustofftechnik presented their product systems for insulating and restoring buildings to save energy. The main focus was on the iQ-Therm Interior Insulation Panel, presented as the "intelligent" interior insulation. The system consists of a polyurethane-rigid foam panel that is filled with a highly capillary-active, mineral material which is subsequently coated with a porous, mineral, light-weight mortar that serves as a moisture buffering sorption and installation layer.
With a thermal conductivity value of 0.031 W/mK, the requirements stipulated in the German Energy Saving Act can be met with a relatively thin construction height. Because of the panel's low weight of 1.6 kg, the iQ-Therm panel is easy to work, form stable and also reliably protects against mould.
The interior insulation system, iQ-Therm, received a patent for combining the reliability of proved calcium silicate materials based on capillarity with the high thermal insulation capacity of organic foams. Because its capillary forces are directed toward the interior and it has the capacity to conduct moisture through its pores, iQ-Therm is able to transport water from the structure back to the surface on the room side. From here it can enter the room by evaporating into the air of the room. This new mode of action solves the problem of moisture concentration in the cross-section of the wall. The material's capacity to store hygroscopic moisture buffers peak moisture loads in the air of rooms and regulates interior climate.
Since the middle of the 80's already, interior insulation measures have been intensively investigated from a technical point of view. To prevent moisture from penetrating from behind, vapour barriers were used. But connections between building elements, pipes passing through these elements and the deformation of the elements (e.g. beam ends in wood beam ceilings) presented a problem that was difficult to solve.
The susceptibility and poor service life of such constructions with vapour barriers or inhibitors is very much criticised today. Remmers claims that it has achieved a breakthrough for this problem with iQ-Therm. The system is permeable, capillary-active and thermally insulating, all at the same time, and thus the building elements dry out over the long-term, even elements that were already damaged. With these properties, the system makes it possible for the first time to insulate and restore approx. 40 % of the existing buildings that cannot be insulated by conventional means to save energy. With iQ-Therm, all buildings or building ensembles that are protected for historical reasons, with brick and natural stone facades as well as high quality stucco/render facades can be insulated according to the newest requirements of the German Energy Saving act without ruining the appearance of the facade. 
With the interior insulation iQ-Therm, all buildings that stand under historical or ensemble protection, with brick and natural stone facades as well as high quality stucco/render facades, can be insulated to save energy according to the newest requirement of the German Energy Saving Act. 
The panels are mounted on the surface of interior walls with a coordinated, mineral cementing mortar and then coated with a porous, mineral, light-weight mortar that serves as a sorption and installation layer.
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