Bespoke Sizes National Domelight

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Thermadome Commercial Access hatch units  are supplied with 232mm high aluminium upstand and aluminium flasing fot fitting to a builders kerb. Polyester powder coated white internally as standard.  Insulated externally with rockwool insulation giving exceptionally robust and thermally efficient performance.

Supplied with a solid insulated cover in mill finish aluminium. The Ladderway access hatch provides access for vertical ladders, with larger Ladderway sizes available on request to facilitate the easy movement of equipment into and out of a building.

Supplied with an Internal and external locking handle.

Thermadome Commercial access hatch units offer a means of escape/access to flat roof areas and are particularly suited to industrial premesis.

  • Highly Insulted Upstand U value of just 0.36 W/m²K
  • Solid Insulated Cover Supplied as standard
  • Impact Resistant to EN1873 – 1200 Joules
  • Telescopic Gas Struts Opening to 70°

4 sizes avilable from stock, larger sizes allow equipment to be moved to the roof with ease.  Gas assisted struts mean even the largest sizes are easy to operate.

Lead time available on request

Daylight Length/Width = Roof Opening Size

Flasing Length/Width = Roof Opening Size + 400mm

Hinge Side

Size Hinge Side
900mm x 750mm Short
750mm x 1500mm Long
1000mm x 1000mm -
1200mm x 1200mm -

Thermal Transmission

Values shown below are calculated U-Values, unless denoted otherwise. Complete unit U-Values are available on request.

Typical Values W/m2K
Solid Insulated Cover Rockwool 1.40
Upstand aluminium 0.36


Fire rating to BS 476: Part 3  AA
Impact resistance - soft body 1200 Joules
Impact resistance - soft body Class B
Sound resistance 28dB
Upward Load 1500N
Downward Load 1000N
Water tightness Pass
Air Permeability


Delivered with full fitting instructions [available to email on request] 

5 Year warranty, movable components such as handle/gas struts have a warranty of 12 months.

Thermadome Commercial Access Hatch


£1,565.00 Ex VAT



£1,878.00 Inc VAT

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