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GS-50TB Skylight Roof Hatch
Ladder Access Roof Hatch
GS-50TB 915x760mm

The GS-50TB is based on the S-50TB Roof Access Hatch with the added benefits of a skylight.

Features include a Polycarbonate Dome Cover, Aluminium construction and easy one-hand operation. (Patent pending)

Illustration of roof access hatch open and in use with ladder


Features / Benefits

Thermally broken cover and frame design provide superior thermal performance.

Engineered with compression spring operators to provide smooth, easy, one-hand operation, regardless of size.

BILCO hatches meet the requirements of Manual Handling Regulations.

Automatic hold-open arm locks the cover in the open position to ensure safe egress. Grip handle allows for easy, one-hand release and closing

Overlapping cover design, fully welded corners on cover and curb, closed-cell EPDM rubber gasket, and fully insulated cover and curb ensure weathertightness and energy efficiency.

Constructed from aluminium to provide many years of trouble-free, dependable service.

Heavy gauge construction and positive latching mechanism maintain building security.

Curb features the Bil-Clip® Flashing System, an innovative method to quickly and easily secure single-ply roofing material to BILCO roof products.

Performance Standards GS-50TB

ENERGY EFFICIENCY Thermally broken cover and frame
AIR LEAKAGE 4.83m³/hr/m² @ 600Pa Tested to BS EN 12207: 2000

Downloads GS-50TB

Specification (.doc)

External Resources / Links

Guide Specification GS-50TB

MATERIALCover and frame are 2.3mm Aluminium
COVERAluminium extrusion with built-in condensation drainage channel and clear Polycarbonate double domes. Domes are coated for UV-resistance.
CURB305mm in height with integral capflashing, 75mm polyisocyanurate insulation, fully welded at corners, and 140mm mounting flange with 11mm holes provided for securing frame to the roof deck.
GASKETExtruded EPDM rubber gasket permanently adhered to cover.
HINGESHeavy-duty pintle hinges with 9.5mm Stainless Steel Type 316 hinge pins.
LATCHSlam latch with interior and exterior turn handles and padlock hasps.
LIFT ASSISTANCECompression spring operators enclosed in telescopic tubes. Automatic hold-open arm with grip handle release.
FINISHMill finish Aluminium
HARDWAREPlated steel compression spring tubes with steel compression springs packed in grease. Stainless Steel Type 316 hinges. All other hardware is zinc plated/chromate sealed.

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