Custom fabricated aluminum sill pans are used in various window and door installations. Customers ask about these pans and below are a couple photos showing what a pan looks like. This particular pan was used in a commercial aluminum storefront installation. It was constructed of matching anodized aluminum material in a bronze finish to match the bronze aluminum storefront system that it was installed with.
These pans are constructed of .040 aluminum and had upturned legs to provide a water dam. The pan turns down to be properly flashed to the building envelope.
For more information of sill pans, see our other blog posts on the subject.