
Protection
Heat weldable top layer bitumen membrane
Application:
- Top layer in multi-layer roofing and terrace coverings
- For every type of substrate
- Especially recommended for roofs with photovoltaic systems
- Single-layer renovation of bitumen coverings
Properties:
- Contains special flame-retardant additives
- Double SBS modification
- Durable and puncture-resistant
- Approved for use under heavy surface protection
- For use in reduced ambient temperatures
- Fixed by welding
Available packaging:
- 5 m
Type of reinforcement | non-woven polyester |
Top finishing | coarse grained |
Low temperature flexibility | ≤ -25˚C |
Width | ≥ 0,99 m |
Straightforwardness | ≤ 10 mm per 5 m roll length |
Thickness | (5,2 ± 0,2) mm |
Resistance to external fire exposure* | Broof(t1), Broof(t2), Broof(t3) |
Reaction to fire | class E |
Watertightness: |
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Maximum tensile force: |
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Resistance to root penetration | NPD |
Resistance to static loading | ≥ 20 kg (method B) |
Resistance to impact | ≥ 1750 mm (method A) |
Resistance to tearing: |
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Resistance of the joint : |
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Durability: flow resistance at elevated temperature | (100 ± 10)˚C |
Dimensional stability | ≤ 1% |
Reference document(s) | EN 13707:2004+A2:2009 |
Making an insulation using NEXLER Protection bituminous felt should be carried out according to the technical design, in accordance with the current building regulations and the detailed guidelines for the design and execution of insulation contained in NEXLER Insulation Systems and the Technical Data Sheet.
The bituminous felt should be installed in ambient temperatures of above 0°C, this requirement applies to the time of day and night.
Do not carry out insulation work during strong winds and precipitation.
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What bituminous felt should you choose for photovoltaics? Discover NEXLER Protection
Photovoltaic systems are becoming increasingly popular on Polish roofs. For investors, they are not only an ecological source of energy, but also a real opportunity for savings and a step towards energy independence. However, in order for photovoltaic panels to work effectively for many years, it is essential to prepare the roof properly.
See also

BITFLEX Primer
Quick-drying bituminous and anionic primer (concentrate)
Find out more SYSTEM
Penetrator G7
Quick-drying primer modified with SBS for under bituminous felt
Find out more SYSTEM