SLH Roof Hatch with telescopic or fixed runners

For Tall Buildings and High Wind Situations

Surespan SLH sliding roof hatches and sliding glass roof lights provide many advantages over standard roof access hatches. The sliding access hatch is ideal where there is a height restrictions or in areas with high risk of wind. They are also ideal for access to roof terraces via a staircase.

Surespan sliding covers are manufactured with a thermally broken lid and upstand as standard. The sliding mechanism can be sold with fixed rails or internal telescopic rails.

The lid is filled with 2″ of CFC and HCFC free insulation with a U-value of 0.43 W/m²K. Surespan can also provide custom solutions such as our glazed sliding hatch over a fixed roof window.

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+44 (0)1922 711185


  • Thermally Broken Lid and Upstand
  • Fixed Rails or telescopic rails
  • Custom made to any size
  • Insulation U-Value 0.43 W/m2K (See below)
  • Fully insulated and energy efficient
  • Secure rigid aluminium weather tight cover
  • ODP (Ozone Depletion Potential) of 0
  • GWP (Global Warming Potential) of 3

Fixed Rails

Fixed Rail Sliding Roof Hatch

Telescopic Rails

Insulation Options

InsulationU-Value Achieved
50mm Standard insulation0.43 W/m²K
50mm Premium insulation0.37 W/m²K
50mm Superior insulation0.20 W/m²K

Calculated to BS EN ISO 6946: 2007


  • 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.


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.


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.


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


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.

Fixed Rail

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.

Sliding roof hatch - examples


Sliding roof hatches can be sold with a glazed lid which provides excellent daylight for users below and provides an architectural talking point.

Contact us

Monday - Thursday 8:30 AM - 5:00PM
Friday 8:30AM - 4:30PM
Saturday - Sunday Closed
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

Electric control unit

Electrical Control Unit.

Push button for domestic use.

Key switch for domestic use.

Push button for industrial use.

Key switch for industrial use.

Roof hatch safety rail

Sureguard handrail

Roof Hatch safety grid retractable

Retractable safety grid

Roof Hatch folding post

Retractable handhold

Foldable hand hold

Retractable single post handrail.

Hand Hold on Roof Hatch

Fixed external handhold.

Standard ladder

Standard ladder.

Caged ladder

Standard ladder with cage.

Retractable ZIP ladder.

Retractable ZIP ladder.

Standard Ships Ladder

Standard ship ladder.

Extended skirt.

Extended skirt.

Extended skirt - angled.

Extended skirt – angled.

Louvered upstand

Louvred upstand.

Optional Features
Powder coated roof hatch

External powder coating to any RAL colour.

140 Automatic Opening Vent

Internal powder coating to any RAL colour.

Rain sensor

Rain sensor activated by rainfall.

Wind sensor

Wind sensor activated by wind.

Glass window

Sealed double glazed top.

Walk on glass

Rigid walk-on cover.

Stainless steel

Stainless steel access hatch.

Extended skirt for pitched roof

With an extended skirt.


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.

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