Fixed Rails
Fixed rails are generally used for larger sizes up to 3000 x 3000 however we can manufacture larger sizes in certain circumstances. The fixed rails provide a maximum clear opening ideal for equipment, tools and personnel access. The external rail is fixed down onto the roof and provides structural support fotr the lid.
Telescopic Rails
Telescopic sliding covers are ideal for smaller sizes that only require access for maintenance personnel or end users. These are available in sizes up to 750 x 2500. Perfect for manual operation, the sliding cover easily and smoothly opens to provide maximum clear opening for easy access.
Downloads
Fitting
On Request
Thermally Broken Sliding Hatch
Supplied to California State University, USA. This 3302 (130″) x 1016mm (40″) solid top electrically operated thermally broken sliding hatch travels its length on tracks fixed to the roof.
LARGE EXTERNAL RAIL SLIDING HATCH
Supplied to Qatar, United Arab Emirates for the Car Building Extension Works Project. This 3144 (123″) x 1235mm (48″) solid top electrically operated sliding hatch travels its length on tracks fixed to the roof.
GLAZED SLIDING SMOKE VENTILATORS
Surespan manufactured an electrically driven 4610 x 1955 SLHGE/AOV Glazed Sliding Smoke Vent for Great Portland Street, London. The large covers provided a 7m² free air flow according to Approved Document B (Fire Safety) paragraph 5b diagram C.7.
FIXED RAIL SLIDING ACCESS
Supplied to Gartsherrie Engineering Ltd. Coatbridge, Scotland. This 3500 (137″) x 4000 (157″) biomass sliding cover features fixed external rails and electric operation. A further two sliding covers were supplied sized 2500 x 4000 and 1500 x 4000mm
Control Options
Electric Operation
Electrical control systems can be based on standard configured systems or completely bespoke to suit the customers wants and needs. A battery backed power supply is standard for all essential systems (e.g. AOV’s) and as an option for non-essential systems.
Additional Electric Features
Electrical Control Unit.
Push button for domestic use.
Key switch for domestic use.
Push button for industrial use.
Key switch for industrial use.
Locking Options
DBH Lock
Deadlock with internal handle.
EDH
Deadlock, internal and external key opening.
Electrical locking
Electrical locking.
Extensions
Retractable safety grid.
Retractable ladder extension.
Retractable ladder extension.
Retractable ladder extension.
Retractable ladder extension.
Standard ladder.
Standard ladder with cage.
Retractable ZIP ladder.
Standard ship ladder.
Extended skirt.
Extended skirt – angled.
Louvred upstand.
Optional Features
External powder coating to any RAL colour.
Internal powder coating to any RAL colour.
Rain sensor activated by rainfall.
Wind sensor activated by wind.
Sealed double glazed top.
Rigid walk-on cover.
Concealed gas spring.
Stainless steel access hatch.
With an extended skirt.
Aligned with roof line.
Variable upstand.
Sliding Roof Hatch with ladder
SLH Roof Hatch with SLC/RH Vertical Fixed Ladder with Retractable Handhold.
SLH Roof Hatch with Zip Retractable Ladder with Extended Skirt Liner and Ceiling Drop Down Door.
SLH Roof Hatch with Ships Ladder.
