Building Facades Building coverings that can even provide energy production under diffuse lighting conditions and little solar radiation through thin sheet metal technology. This offers the optimum combination of ecological solar power generation and designer roof and facade architecture techniques.  Another unique design is using Heat-MirrorTM glass facades.  This  attractive alternative is attained by utilizing a  non-conventional  curtain-wall and point- supported structural  glazing system.  The difference in this facade design compared to other conventional structural facades, is that  these framed glass modules (cartridges), are then clamped to the substructure with pin-union  members. This results in building envelopes that are unmatched by any other structural facade system, when it comes to energy-efficiency, simplicity of installation, quality, durability, and aesthetic appeal.