Apprentice question
Stop and ask
Stop. Get direction before you touch it.
Trim flanges are not the structural support for big wind-loaded louvers. Stop and add the approved structural mounting angles/brackets into the building frame.
['Large exterior louvers take wind load across a big surface area. Decorative trim flanges may finish the opening, but they may not be designed to hold the frame under wind, vibration, or fan pull.', 'Check the louver submittal, wall opening detail, and structural anchorage path. If the frame is bowing, hold the install and add approved internal angles, clips, brackets, bolts, or blocking per the louver manufacturer and structural detail.']