aluminum frame with hangers placed on beams in the attic for mounting plasterboards, visible roof window.

aluminum architecture attic barrier beam beams bevels build ceiling construction cord crossbar energy fiberglass flat frame glass hanger hangers home house inside insulate insulating insulation insulator isolation membrane mineral mounting oblique placed plaster plasterboard plasterboards polypropylene profile protection rack rafters roof roofing rooftop room saving slanted string timber truss trusses usable vapor visible window wood wooden wool