Big Smoky UL Vents

Specifications:

• Material:
• U-LP:14 gauge galvanized steel cover and 14 gauge galvanized steel curb with a 12 gauge galvanized steel curb cap
• U-LPA:.10 Aluminum cover and .10 Aluminum curb with .125 Aluminum curb cap
• U-LPAG:.10 Aluminum cover and 14 gauge galvanized steel curb with 12 gauge galvanized steel curb cap    
• Finish:
• Galvanized Steel: Mill Finish
• Aluminum: Mill Finish
• Cover: 
• High-strength composite construction with exterior cover and liner bonded to a 2” core of rigid foam-type insulation 
• Curb:
• 12 ½” in height with 3 ½” pre-drilled mounting flanges and counterflashing with 1” thick exterior fiberboard insulation
• Gasket: 
• Polyurethane Foam Gasket adhered to the entire perimeter of curb
• Hinges: 
• Steel Pintle Hinge
• Springs:
• Dampened Gas Springs to open against 10 psf snow or wind load at a safe controlled speed
• Latches:
• Latch designed to open automatically with parting of single 165 degree fusible link or manually with interior and exterior pull release handles without disturbing the fusible link. Designed to withstand 90 psf wind uplift for class 90 roof decks.
• Hardware: 
• All hardware is zinc plated (stainless steel hardware optional)
• Operation:
• Covers automatically spring open to approximately 90 degrees in the event of fire, being actuated by the parting of a single UL-listed 165 degree F fusible link, automatically locking in the fully opened position
• Certifications:
• UL 793 Listed
• UL 790 Certified