NBS Source
Retrofit Conservation Roof Hatch

Application

Suitable for installation on landmark heritage buildings, the hatch is designed to provide a minimal sightline while still offering easy access.

Description

Thermally broken, low-profile roof hatch, manufactured in aluminum. Designed to be operated by one person, the gas spring-assisted opening lid is supported by heavy-duty stainless steel hinges and fixings with a safety hold-open stay.

General information

Finish

Aluminium

Mill finish.

Polyester powder coated

Material

Aluminium

Size

600 x 600 mm

600 x 900 mm

750 x 750 mm

750 x 1500 mm

900 x 750 mm

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Uniclass 2015

Pr_30_59_36_74 Roof hatchesPrimary

CAWS

L20/630 Hatches

Specification data - Roof hatches Enhanced data

Size

600 x 600 mm

600 x 900 mm

750 x 750 mm

750 x 1500 mm

900 x 750 mm

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Insulation

50 mm-thick premium insulation.

0.37 W/m²K.

50 mm-thick standard insulation.

0.43 W/m²K.

50 mm-thick superior insulation.

0.20 W/m²K.

Locking

None.

L01 Cablock.

Standard.

L02 Cablock with hasp and staple.

L04 Cablock with external padlocking handle.

Cover

The thermally broken lid incorporates a sandwich of 50 mm-thick CFC- and HCFC-free insulation. The hatch also incorporates a safety hold-open stay.

Upstand

The hatch sits on a slim aluminum frame which sits over a builder's upstand. The unit has an overall height of 110 mm when closed.

Operation

Complete with gas spring-assisted opening to ensure the minimum amount of effort to open the double-skinned aluminum lid. The lid has the provision to lock in the open position with a safety hold-open stay to prevent accidental closure.

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