Apron Upstands

The minimum cover of the updated of an apron flashing varies depending on whether the upstand is hemmed or unhemmed, and the covering cladding is smooth or profiled. Profiled claddings require more coverage because they allow vertical air movement through the voids of the profile.

Revision Category: 
4 - Clause Inserted
Revision Detail: 

New clause created from Flashing Cover 5.2.1.