Roof Access Hatch – Commercial (RAH-C)

Product features and details.
Product Overview

Roof Access Hatch – Commercial (RAH-C) are available in 10 standard sizes with special sizes available to order; up to a maximum size of 750 x 1500mm. The Ladderway access hatch provides access for vertical ladders, with the larger Ladderway sizes available to facilitate the easy movement of equipment into and out of a building. The Stairway access hatch provides access to stairs, and the length of opening provides headroom for use with stairways from 30° to 75°.

They may be supplied with clear or opal diffused polycarbonate, bringing the benefit of natural daylight into the building; or with a solid insulated cover available in mill finish aluminium or coated to any standard RAL colour. They are available with aluminium upstands 300mm high, finished white polyester powder coated internally as standard and insulated externally with PIR 60 mm insulation giving an exceptionally robust and thermally efficient performance. They are also available with an adaptor base to install directly to the top of a builders upstand curb.

Specific Features
  • Highly insulated upstand 0.36 W/m².K
  • Impact-resistant to EN1873 - 1200 Joules
  • Available in 10 standard sizes
  • Solid insulated cover or glazing
  • Locking or non-locking from inside and outside
  • Open hold and release arm
Thermal transmission

Polycarbonate Multiwall 20mm: 1.66

Solid Insulated Cover 20mm: 1.40

Upstand aluminium: 0.36


Impact Resistance – soft body: 1200 Joules

Impact Resistance – soft body: Class B

Sound Resistance: 28 dB

Upward Load: 1500 N

Downward Load: 1000 N

Water Tightness: Pass

Air Permeability: Pass

Size Guide
This product has a range of sizes, please speak with us for more detail.
ModelsMaximum SizeLid Finishes
10 Sizes750mm x 1500mmPolycarbonate or solid insulated
How to use a Sertus Roof Access Hatch - Commercial (RAH-C)
1.5 mins
For all information regarding this product please download its datasheet.

Installation Instructions

How to install the RAH-C, by the people who make it.
Form Upstand
Mount Vent
Complete Connections
Access, everywhere.
Roof access hatches are used on all types of buildings see some of our examples below:
Related Products
Roof Single Leaf - Residential (RSL-R)
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