Paulussen timber trade is characterised by a constant search for optimisation in terms of fire reaction class, durability, ecology, acoustics, etc.Our latest product - Flashing profile in the corner - is a very interesting development that is currently patent pending.The metal inner corner optimises any cladding in its fire reaction class.

Putting together some scientific research, Paulussen's latest product was developed.
Mounting a non-combustible, intelligent profile in an inside corner optimises the fire reaction class.

Whereas we like to compare a flame with aerodynamics, it is by now clear that an inner corner of a cladding is usually the most fragile point with regard to fire of the cladding.

With an exterior corner, the flame will slip away along the corner and distribute its heat over a larger area.
This distribution of heat ensures low impact and slow ignition.

With an interior corner, however, this is the opposite.
The same flame as described above will see its heat and energy centred at an inside corner.
This (radiant) heat will reach much higher temperatures and consequently have a much higher impact on the cladding.

Where a flame will glow along the outer corner, a flame in an inner corner will begin to fester.
The different aerodynamic lines will collide and consequently the flame will also strike the surface harder.

So our latest invention is an intelligent, non-combustible corner profile that realises optimal aerodynamics in the inside corner.
Consequently, the fire will proliferate less and thus realise less impact in the corner.

Besides the aerodynamic part, the inside corner has some other (major) advantages.
A non-combustible profile in the corner prevents (rapid) burn-through in the corners.
If the corner is not installed, the fire will centre here and achieve an accelerated breakthrough into the cavity.
A breakthrough thus creates a cavity fire that is unquenchable by the ventilated cladding and usually even strongly fuelled by the ventilation.
A cavity fire is also very difficult to extinguish by the fire brigade, so this is highly to be avoided.

Preventing a cavity fire, greatly reduces combustible surface area (backside) and thus improves fire performance.

The corner width can be adjusted according to technical desire or aesthetic reasons.
A wider corner has a better result than a smaller corner.
This is because the combustible surface is slightly reduced and a flame returning aerodynamically will thus have more space to move smoothly.

This profile will optimise any façade system towards fire safety.

To all competitors:
This new invention is the result of thorough scientific research and has recently been Patent Pending.