Wellhofer - Airtight Attic Access Hatch

Product Description

The Wellhofer attic hatch is pre-insulated and pre-sealed for airtightness. Manufactured and engineered in Germany the unit has been tested to stringent DIN standards to comply with airtightness and insulation requirements. The Wellhofer hatch remains airtight under blower door test conditions.

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Technical Detail




Ceiling Opening (WxLxH)

60 x 60 x 8.5cm

Finished Measurement

The finished measurement of the casing is 1.5 cm smaller in length and width than the ceiling.

Attic Ladder

not included



Wellhofer Airtight Access Hatch description

Thermal protection

WS3D Blower-Door T Material:

Insulation 32 mm polyethylene-thermodeck, airtight sealing system for the gap between ceiling and casing: double faced adhesive tape and insulation braid

Test results:

Tested as complete constructional element: Insulation U=1,0 (DIN EN ISO 12567) Airtight sealing system a=0,02 (DIN EN 1026) Incl. WS installation kit (contains all the required materials) and the certified sealing system for airtight installation

Data Sheets