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FD Alu 1500SK vapour barrier
The sealing sheet (Sd value ≥ 1500 m) is a high-quality, cold-applied self-adhesive air and vapour barrier that is very quick to process. It consists of an aluminium film combined with an extremely tear-proof mesh to which an acrylic adhesive and a protective film are applied across the entire underside.
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Variants
The vapour barrier sheet is especially suitable for laying on steel profile sheets/trapezoidal sheets in flat sloping roof areas >2° angle of inclination.
If moisture is present during application, such as from condensation or rain, the overlapping parts of the membranes must not be opened up. This could compromise the adhesive strength of the acrylate adhesive. If heavy rain is forecast, the overlaps should be weighted down or covered to protect them.
The membrane fulfils the requirement for combustible vapour barriers according to DIN 18234-1 "Structural fire protection of large roofs, exposure to fire from below" with a required heat value/fire value of < 10,500 kJ/m2. According to the Industrial Construction Directive, this applies to roofs over 2500 m2 with a supporting deck made from trapezoidal steel profiles.
- For roofs with a pitch angle of >2°
- Must not be used as emergency sealing
- Longitudinal seam overlap: 10 cm
- Transverse seam overlap: 15 cm
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