It is an innovative, vacuum system of moisture removal from damp thermo-insulations, allowing for drainage of very damp thermo-insulations without the necessity of their replacement.
The idea relies on creation of sucking power converting air kinetic energy into underpressure. This allows for a constant ventilation and removal of moisture gathering in thermo-insulation.

ADVANTAGES:

• Application of ESTRAER at roof repair eliminates the necessity of removing old, damp roofing and thermo-insulation layers.
• WIn the case of damping of newly-mounted thermo-insulations ESTRAER gives a full guarantee of moisture removal
• Possibility of assembly on already mounted chimneys.
• Multiple application. After roof drainage ESTRAER may be replaced with a traditional cover plate (item im0341).

In order to increase ESTRAER functioning effectiveness, it is recommended to use a ventilation chimney together with a sewerer.
ESTRAER should be mounted on an axis of most frequently occurring winds in a given area (in Poland 90% cases are western winds).

1) Sucking hole
2) Inlet chamber
3) Underpressure chamber
4) Striker