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Bilco F-50TB 48×48 Thermally Broken Roof Hatch


**In stock and ready to ship!***

Bilco F-50TB 48×48 Thermally Broken Roof Hatch

The Bilco F-50TB 48×48 Thermally Broken Roof Hatch features added insulation a frame and cover design that minimizes heat transfer between interior and exterior metal surfaces. The result is a product that resists harmful condensation and provides superior energy efficiency.


  • Thermally broken cover and curb reduces heat transfer between interior and exterior surfaces to resist harmful condensation
  • Ozone-friendly polyisocyanurate insulation (R-18) provides superior energy efficiency
  • Special EPDM gasketing with enhanced weather and wind resistance
  • Meets LEED® standards for recycled content
  • High solar reflective index (SRI)
  • Available in all Bilco standard roof hatch sizes and special sizes are available upon request


  • Inside curb to curb measurement of 48″ x 48″
  • Material: Cover and frame are 11 gauge (2.3 mm) aluminum.
  • Cover: Brake-formed, hollow-metal design with 3″ (75 mm) concealed polyisocyanurate insulation (R Value of 20+), 5″ (100 mm) beaded, overlapping flange, fully welded at corners, and internally reinforced for 40 psf (195kg/m2) live load. (See note below for Type GS-50-TB models)
  • Curb: 12″ (305 mm) in height with integral cap-flashing, 3″ (75 mm) polyisocyanurate insulation (R Value of 20+), fully welded at corners, and 5-1/2″ (114 mm) mounting flange with 7/16″ holes (11 mm) provided for securing frame to the roof deck.
  • Gasket: Extruded EPDM rubber gasket permanently adhered to cover.
  • Hinges: Heavy-duty pintle hinges with 3/8″ (9 mm) Type 316 stainless steel hinge pins.
  • Latch: Slam latch with interior and exterior turn handles and padlock hasps.
  • Lift Assistance: Compression spring operators enclosed in telescopic tubes. Automatic hold-open arm with grip handle release.
  • Finish: Mill finish aluminum
  • Hardware: Engineered composite compression spring tubes and steel compression springs packed in grease. Type 316 stainless steel hinges. All other hardware is zinc plated/chromate sealed.

Model# F-50TB

**In stock and ready to ship!**


Architect Drawing

Product Data Sheet

Installation Instructions

Click ‘here’ to see more Bilco roof hatches and accessories available through CRS and ‘here’ to go to the manufacturer’s site!

If you have any questions about this item or would like special pricing for bulk orders or custom sizes, please call Commercial Roofing Specialties at 1-(800) 267-2308 and ask for an E-Commerce Representative.


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