Air, water, and wind come from the specification
This website does not publish a curtain-wall performance number. The project specification does.
Related scope
Curtain walls
Curtain wall installation under a Class 2 professional contracting qualification, including mixed facade packages.
Copy the clause, do not invent a class
Ask for the air permeability, watertightness, and wind-load clauses, plus the design wind pressure for the plot. A national standard name without the project values is not enough to test a sample. The product page says the same thing in the draft performance line.
Testing is a separate instruction
A mock-up test, a site hose test, and a laboratory certificate are three different costs. Say which one the developer requires before the wall is priced as a tested system.
Deflection is not the same as wind pressure
Design wind pressure sizes the members. The deflection limit decides whether the glass edge and the gasket stay sealed. Ask for both numbers. A passed air test at a lower pressure does not prove the deflection clause.
