Air shafts
Thermal insulation solutions for concrete air shafts that that provide resistance to the formation of condensation assuring the integrity of surrounding wall structures and guaranteeing the overall air quality. Our air shaft insulation systems are non-combustible and will not produce any smoke or fumes in case of a fire.
Ventilation moves outdoor air into a building or room, and distributes the air. The general purpose of ventilation in buildings is to provide healthy air for breathing.
Therefore, it is essential that fresh air is brought into/out of the building via separate shafts and channels. The intake openings are generally located on roofs or in the upper part of the façade, because the air is relatively clean and less likely to be influenced by vehicle exhaust gases.
The fresh air is pushed through concrete shafts to the basement where extensive air treatment or cooling systems are located. The tempered fresh air is led through branched systems into the different rooms. The replaced air leaves the rooms through different channels that lead to an air shaft the pushes it out of the building.
To insulate these shafts, it is beneficial to have an insulation material that is vapor tight and does not absorb moisture. Depending on weather, the air can be cold, warm or humid.
A closed cell insulation material like FOAMGLAS® insulation helps limit condensation penetrating the system and possibly the walls of the adjacent rooms, bringing risk of fungus or mold influencing the air quality.
These concrete shafts run through highly populated buildings so opting for a completely incombustible material is a safety advantage. In case of a fire, FOAMGLAS® insulation is non-combustible and will not produce toxic smoke, adding to the overall fire-safety of the building.
Typical configuation
for air shafts:
- A primer.
- A single system of FOAMGLAS® insulation.
- The insulation system shall be fully bonded to the substrate with PC® adhesive appropriate for the application conditions.
- A reinforced glass mesh.
- Additional coating.
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