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Galvanized Steel Double Door AcousticMAX - 48 Smoke Vent, Rooftop Close With ElectricalOpening Mechanism - Babcock Davis will block external noise intrusion with sound transmission class ratings of STC 48 outdoor-indoor transmission class ratings of - OITC 36. It features superior thermal performance and innovative sound control. This prefinished black interior smoke vent has a stainless steel heavy-duty pintle hinge and zinc-plated steel rotary latch. This product is perfect for theaters and performing arts centers with a five-year warranty. 


Door: Double Leaf

Sound Rating: Sound Transmission Class (STC) 48

Outdoor-Indoor Transmission Class (OITC) 36

Material: Galvanized Steel: 14 gauge 

Inside Finish: Powder Coat, Black

Outside: Powder Coat, High Reflectance White

Cover: Metal with liner, withstands a live load of 40psf

Curb: Double wall curb with easy tab counter flash and mounting flange

Insulation: Mineral wool with sound mat in cover and curb; total R-10

Hardware: Stainless steel heavy-duty pintle hinge. Gas spring with damper open cover against 10psf load. Zinc plated hold open arm.

Latch: Zinc plated steel rotary latch designed to hold covers closed against 90psf wind uplift

Certification: UL 793 listed

Warranty: 5 years