NonDrip™ was tested on its reaction to fire according to EN 11925-2:2002 / EN 13823:2002 and classified according to EN 13501-1:2002.
The results showed that there was no reaction of the material at an attempt to ignite the surface. With a side ignition and a flame growing at a height of max 3cms, the burning stopped after max 2 seconds.
NonDrip™ fire behaviour is classified as B, no flashover possible. The classification in relation to smoke production is s1, the lowest smoke production level. The classification in relation to flaming droplets / particles is d0, no dripping.
The full fire classification is B-s1, d0, the best classification possible for this type of product.
To prevent damage to the NonDrip™ coating, avoid rubbing the sheets together and / or against the roof structure.
If the sheets are to be fixed on a timber structure, a strip of roofing felt should be placed between the sheet and the structure.
Ensure that the bottom of the sheet is capable of draining condensed water into a gutter. The metal sheet that is draining condensed water into the gutter should be installed in such a way that the NonDrip™ is clearly overhanging into the gutter.
To prevent deterioration caused by contact with wet, green or treated timber due to direct or indirect contact with corrosive materials, a DPC barrier must separate roof cladding material when fixed to timber purlins.
NonDrip™ does not support fungus growth.
Application conditions and restrictions:
To ensure proper functioning, NonDrip™ should not be used in climate zones or in buildings where relative humidity approaches saturation for extended periods.
In certain environments in particular, the function of NonDrip™ can be affected, e.g.: In buildings with humidity production, buildings with poor ventilation, buildings with presence of corrosive gasses or rooms with a dusty atmosphere, etc.
It is the designer/specifier’s responsibility to ensure overall compliance with the Building Regulations.