Existing comment:
Existing Condition
The cavity between the existing precast panels and the back-up structural wall varies. The maximum existing average dimension is one inch.
Proposed New Precast Panels with 3" Offset:
The proposed 3" facade offset results from a minimum cavity width of four inches to accommodate 2" thick insulation, a 1" air gap, and 1" for the anchor attachments as well as unforeseen conditions. The new precast panel attachment details will meet blast requirements. |