In­su­la­tion helps save en­ergy, avoid dam­age to build­ings and de­liv­ers a healthy in­door liv­ing en­vir­on­ment. To en­sure this works re­li­ably and ef­fi­ciently over the long run, one design as­pect is es­pe­cially crit­ic­al in terms of build­ing phys­ics: The thermal in­su­la­tion must be pro­tec­ted on both sides.

The ideal structure is 3-ply

  • An air­proof­ing lay­er such as a va­pour re­tarder is loc­ated on the side of the in­su­la­tion fa­cing the room
  • The thermal in­su­la­tion ma­ter­i­al is in the middle.
  • On the ex­ter­i­or side, a wind bar­ri­er such as an un­der­lay or wall lin­ing mem­brane cov­ers the in­su­la­tion

This design en­sures that weath­er, con­dens­a­tion, mould and air flow do not neg­at­ively af­fect the per­form­ance of the build­ing com­pon­ent or even cause struc­tur­al dam­age.


Airproofing layer

Why airtight?

The air­proof­ing lay­er pro­tects the in­su­la­tion from mois­ture and con­dens­a­tion from the in­side, en­sures that the in­su­la­tion works ef­fect­ively and provides a healthy in­door liv­ing en­vir­on­ment.



System INTELLO Funktionsweise - 3D

Intelligent air sealing

Struc­tur­al dam­age is caused by ex­cess­ive mois­ture. In­tel­li­gent air seal­ing mem­branes of­fer sig­ni­fic­antly high­er pro­tec­tion for struc­tur­al ele­ments than con­ven­tion­al mem­branes.

Luftdichtung innen

Airtightness system

Intelligent, moisture-variable system solution for installation


outside windproof

Why windproof?

The wind­proof­ing lay­er pro­tects the thermal in­su­la­tion from rain, snow and wind from the out­side. It also en­sures that the in­su­la­tion will not be per­meated by cold air and hence can fully un­fold its ef­fect­ive­ness.




Moisture-activated windproofing

New, mois­ture-ac­tiv­ated mem­branes with a non-por­ous, mono­lith­ic func­tion film of­fer sig­ni­fic­antly high­er pro­tec­tion levels than con­ven­tion­al mi­cro­por­ous mem­branes.

Winddichtung außen

Windproofing systems

System solutions that actively manage moisture for external windproofing for

- pitched roofs
- walls