Rheinzink, Burnaby, BC, Canada, offers the new AERO 63 perforated sheet. A 63 percent free ventilation cross-section guarantees an approximate 25 percent improvement in ventilation compared to commercially available perforated sheets. Designers’ concepts and the demand of building physics are now easier to combine. The advantages are: optimized air intake, simple installation, dimensional stability and durability. The product is also maintenance-free and environmentally friendly.