Project and production of curtain walls, building envelopes and aluminum frames since 1971. ISA has heavily invested in technology and applied research, aiming to achieve the following objectives: - Identification of new technological solutions - Achievement of high performance targets, respecting the surrounding environment - Great expressive and technical versatility for the design freedom of designers and clients These objectives, in compliance with the reference regulations, have been achieved using envelopes that: - ensure excellent light transmission - guarantee valid thermal insulation and excellent acoustic insulation - allow the use of low consumption air conditioning systems, with limited maintenance costs and reduced polluting emissions