Complete invisibility, thermal insulation, concealed buffer.

SEI SYSTEM prefabricated roller blind box with lower inspection and concealed buffer insulated with XPS 2cm. Made of expanded polystyrene externally reinforced with mortar, sand and additivated cement. Lower white ABS flanks with flap reference into the wall and lateral concealed buffer fixation. Lowered interior plaster profile to insert concealed ceiling. The vertical walls (internal and external) are available in thicknesses of 3 to 8 cm. The box is provided with accessories: ABS extremity flanks geared for various reversible engine operations, external mounting brackets for wall anchoring, supports for the roller made of nylon bushings and/or galvanized bearings, galvanized octagonal roller and ABS cap and pulley.