Integration of an external wall air diffuser within an external thermal insulation composite system

External wall air diffusers have been installed in facades for quite some time. In many cases, this led to an impairment of the facade design due to more and more frequent moisture damage caused by use. With the Energy Saving Ordinance in some countries (for ex. Germany), the requirements for the watertightness of buildings have been drastically tightened. Due to this fact, the demand for an economical building ventilation system that blends in with the individual facade design has increased.

Insulation

Simple & safe to the goal

1. A borehole is drilled in the area above or next to the windows. The pipe sleeve of the Lunotherm external wall air diffuser is inserted into this opening.
2. The external wall diffuser, which is tailor-made for the installation situation, is plugged into the pipe sleeve. The Lunotherm external wall air diffuser is bonded with the high-performance mineral bonding mortar weber.therm 370, using the bead-point method and then additionally mechanically fastened with four weber.therm screw anchors.
3. The remaining facade surface is levelled flush with a weber.therm external thermal insulation composite system with the outer wall air diffuser (refer to point 4.4 of the Weber Application tips "Bonding the insulation boards within the weber.therm External Thermal Insulation Composite Systems".
4. This reinforcement layer is applied as described in the weber.therm external thermal insulation composite systems, using the thick-layer reinforcing mortar weber.therm 300 in a thickness of 5 - 8 mm. After the appropriate standing time, the overlay render is applied.
5. So far, the weber.therm ETICS (external thermal insulation composite system) offers the possibility of integrating the Lunotherm external wall air diffuser into the facade design.