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The consultant expressed concern related to a transition of the curtain wall system assembly to the precast panel. There may have been a gap for air flow at this transition and wanted shop drawings to incorporate an extra measure of protection to seal any gaps below the sill track. There was even more concern pertaining to air flow and the possibility of condensation through the gap transferring to the inside of the building.
To address these concerns, Dynamic Glass the Houston-based glazing firm was contracted to fabricate and install roughly 110,000 square feet of glass, about 80,000 square feet of it being pre-fabricated ribbon windows and the remainder unitized curtainwall as well as some stick-built areas.
Dynamic Glass worked with the consultant to incorporate a solution that would cover the air gap. It would need to adhere to and be compatible with the silicone sealant and be easy to install. Tremco recommended Spectrem Simple Seal a silicone extruded sheet in a 3" width to adhere with silicone sealant to the precast panel on one side and the metal panel connection on the other.
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