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Ampatop RF black (plus)
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Low-flammable wall membrane for façades with open joints

Two-layer, low-flammable black wind seal for façades with open joints.

  • Fleece consists 30% of recycled PET bottles
  • UV stable
  • Ten-year product warranty for joint width up to 50 mm / 40 %
  • Fire behaviour: B-s1, d0

Two-layer, low-flammable black wind seal for façades with open joints, consisting of a PET fleece with TPU coating. According to EN 13859-2 for walls with open joints, artificial ageing was carried out with 5000 hours of UV exposure (standard is 336 hours).


10 Jahre Ampack Garantie

CE 13859-2:2014

ISO 9001

Article NumberDescriptionRoll dimensions

7640442091216

Ampatop RF black

1,5 m × 50 m = 75 m2

7640442091254

Ampatop RF black

3,0 m × 30 m = 90 m2

7640442091230

Ampatop RF black plus
integrated tape

1,5 m × 50 m = 75 m2
Property Value Standard
Harmonised European Standard EN 13859-2:2014

Mass per unit area

225 g/m2

EN 1849-2

Fire behaviour

B s1 d0 EN 13 501-1 / EN ISO 11925-2

Resistance to water penetration

W1 EN 1928, procedure A

Water vapour permeability, sD value

0,15 m EN 1931

Width of overlap

15 cm

Temperature resistance

-40 to +80 °C

Maximum tensile strength longitudinal / transverse

370 / 370 N/5 cm

EN 12 311-2, without support liner EN 13 859-1, Appendix A, with support liner

Elongation longitudinal / transverse

30 / 30 %

EN 12 311-2, without support liner EN 13 859-1, Appendix A, with support liner

Resistance to tearing (nail) longitudinal / transverse

180 / 180 N

EN 12 310-1 without support liner EN 13 859-1, Appendix B, with support liner

Dimensional Stability

< 2 %

EN 1107-2

Cold bending behaviour (flexibility)

-40 °C EN 1109

Outdoor weathering

3 months (before installation of façade cladding)

UV stability

> 10 years

Gap width up to

50 mm / 40 %
5'000-hour test approved EN 13859-2:2014
Hazardous substances none
Visible defects none
Values after artificial ageing

Maximum tensile strength longitudinal / transverse

400 / 370 N/5 cm

EN 13859-1, appendix C, EN 1297, EN 1296

Elongation longitudinal / transverse

400 / 370 N/5 cm

EN 13859-1, appendix C, EN 1297, EN 1296

Resistance to water penetration

W1 EN 13859-1, appendix C, EN 1297, EN 1296
Technical data sheets
pdf Technical data sheet: Ampatop RF black (plus) Technical data sheet: Ampatop RF black (plus), black wind seal for façades with open gaps
Declarations of performance
pdf Declaration of perfomance: Ampatop RF black plus Declaration of perfomance: Ampatop RF black plus 1,5 x 50 m, black wind seal for façades with open gaps
pdf Declaration of performance: Ampatop RF black Declaration of performance: Ampatop RF black 1,5 x 50 m, black wind seal for façades with open gaps
pdf Declaration of perfomance: Ampatop RF black Declaration of perfomance: Ampatop RF black 3,0 x 30 m, black wind seal for façades with open gaps
Product inserts
pdf Product insert: Ampatop RF black Product insert: Ampatop RF black 1,5 x 50 m, black wind seal for façades with open gaps
pdf Product insert: Ampatop RF black Product insert: Ampatop RF black 3,0 x 30 m, black wind seal for façades with open gaps
pdf Product insert: Ampatop RF black plus Product insert: Ampatop RF black plus 1,5 x 50 m, black wind seal for façades with open gaps, with integrated adhesive tape
Product photos
jpg Product photo: Ampatop RF black Product photo: Ampatop RF black, black wind seal for façades with open gaps
jpg Product photo: Ampatop RF black plus Product photo: Ampatop RF black plus, black wind seal for façades with open gaps, with integrated tape

Ampatop RF black (plus) can be laid horizontally or vertically with the coated black side facing outwards. The laying direction must not be different on each side of the building.

Roll out the membrane, line it up, cut it to length, pull it tight and fix it in place, e.g. using stainless steel tacks (this should be invisible inside the overlap, which must be at least 10 cm). Always mount the final mechanical fixation after laying (e.g. counter battens)! Ampacoll ND Pads (nail seals) or Ampacoll ND.Band (nail sealing tape) should be used for this.

The integrated tape, Ampacoll Profix liquid adhesive or Ampacoll UV acylic tape should be used for the wind and waterproof bonding of the overlap. This best-practice method also applies to necessary penetrations (e.g. for air vents, balcony mounts and cable holes) as well as window joints. Visible leakage of the adhesive must be avoided.

Ampacoll Profix is also used to bond Ampatop RF black to metal furring within the insulation layer. The maximum distance horizontally or vertically is 1.45 m, and the minimum width of the profiles is 4 cm. The insulation must fill the entire cavity and be laid evenly and secured in place, so that the façade membrane is not negatively affected (no bulging, pushing out, etc.). When installing on wooden materials, pressure-resistant insulating materials or similar, it is recommended to bond using Ampacoll Profix every 70 cm horizontally and vertically, especially when only individual or sporadic brackets are installed for final fixing. The maximum distance between individual attachments is 70 cm (horizontal and vertical). N.B.: Protruding attachments must be split at insulation level and should not penetrate the membrane (e.g. two-piece brackets with clamping flanges).

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