In the course of improving the living quality, the regulation of the room-climate becomes more
important. A very comfortable way, gentle on resources and effortless, is the use of moisture
controlling materials like lumber soft fiber plates, zeolithes, loam and porous glasses. Porous glasses
of the Vycor type show some unique properties like low production cost, no inflammability and the
adjustable porosity, pore-structure and –shape, which qualify them for a very attractive alternative
to other inorganic and organic materials.