external shutter Germany

...Grupor® Roller Shutter Box KOMBI-Renovation System, highly efficient sound and thermal insulation for existing roller shutter boxes. In contrast to the renovation mat mentioned above, the focus of the KOMBI renovation mat is on reducing disruptive external noise. A quiet and warm apartment is essential for a comfortable living environment. The development of the Grupor® combination insulation mats complies with EnEV2009 and reduces sound and heat leakage at the roller shutter box in older buildings. Cold and noise stay outside - warmth, tranquility, and comfort remain inside.

...Rectangular damper blades made of galvanized steel for volume flow and pressure adjustment, as well as for airtight sealing of air ducts in air conditioning systems. Frame in galvanized execution, hollow body blades made of aluminum profile, with external aluminum gears, counter-rotating, axis 10 x 10 mm and mounting plate AP2 made of galvanized steel, connection frame on both sides made of air...