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DELTA®-NOVAFLEXX

Variable-Sd vapour retarder for converting roofs from inside or outside

Thanks to its highly robust and tear-resistant cloth, the installation of DELTA®-NOVAFLEXX is quick, safe, and cost-efficient. The new screen printed surface supports precise and quick installation.

For converting a roof from the inside.

Interested in DELTA®-NOVAFLEXX?

Ask us about the right build-up, quantities, availability and delivery for your project.

Features

DELTA®-NOVAFLEXX may be installed either parallel with or across the rafters. Fix it easily and cost-efficiently with staples or clout nails. Overlaps of DELTA®-NOVAFLEXX are sealed with DELTA®-MULTI BAND . The DELTA®-TIXX cartridge adhesive may be used to make airtight connections between the sheet and smooth surfaces in gable walls, interior purlins, chimneys, etc. On rough walls, seams are made with DELTA®-KOM BAND and contact bars or with DELTA®-LIQUIXX .

For re-roofing or converting a roof from outside:

Remove the roof covering and the old insulation. Cover any nails or screws protruding from the interior lining with an insulation panel. Otherwise, attach DELTA®-NOVAFLEXX directly to the interior lining: roll out along the gutter and across the rafters and fill in the rafter spaces without putting tension on the material. Fix along the rafters with espalier laths. Sheet overlap: 10cm. Seal seams with DELTA®-MULTI BAND or DELTA®-THAN plus espalier laths. Cut insulation to rafter space width (+ 1cm) and put in.

Where to Use

  • Airtight vapour control membranes

Product Data

Material
Polyamide film with laminated special fleece..
Application
Air and vapor control layer for pitched roofs, walls and floors
Fire resistance
Class E, EN 13501-1
Tear strength
approx. 150/130 N/5 cm,
Sd value
approx. 5.0 m. in a dry environment approx. 0.2 m in a humidity environment
Service Temperature range
-40 °C to +80 °C
Weight
approx. 90 g/m²
Roll weight
approx. 6.8 kg
Roll size
50 m x 1,50 m (40 rolls / pallet)

Typical values. Always check the current Dörken data sheet before specifying.

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