All air sealing will be conducted from the inside of the building unless otherwise noted.
1. Main School – Exterior wall transition to roof deck air sealing (red line)
A. Air seal the top of the precast panel or CMU block wall to the underside of the metal structural decking with closed cell foam, fill top cell of CMU if needed.
B. Some areas of the school will require air sealing the horizontal transition between the CMU block wall to the precast panel with closed cell foam.
C. Air seal completely around all structural penetrations with closed cell foam including between parallel flanges of metal beams that pass over the wall.
D. Air seal around any electrical conduit or other penetrations observed through the exterior precast concrete band or CMU block wall above the suspended ceiling system with closed cell spray foam.
E. All exposed areas air sealed with closed cell spray foam shall be coated with ignition/thermal barrier as required by the NC Building Code.
2. Main School 2nd Floor - Insulating the precast band joist (blue line):
A. Spray 2-inches of closed cell spray foam on the precast band joist around the perimeter of the 2nd floor (approximately 2 feet vertical dimension).
3. Main School – Blocking and air sealing the soffit overhangs above the exterior doors
(yellow line)
A. Install 2-inch foil-faced Thermax board to insulate and block the opening above the exterior doors to the soffit overhang. Use closed cell fire foam to air seal the perimeter and all seams in the Thermax board to create an air tight system.
**As of December 9, 2021, project will rebid. Plans are available after November 9, 2021. construction of the Air Sealing Repairs at Burns High School (Package 1) Bids will be received for a Single Prime Contract. All proposals shall be lump sum. Cleveland County Schools reserves the unqualified right to reject any and all proposals
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