Insulation drying
The insulation layer drying or flat roof insulation layer drying is a renovation technique with which dampened insulation layers on flat roofs can be dried due to damage to the roof skin . This makes it possible to renovate damaged roof surfaces without the expensive removal and reinstallation of the thermal insulation.
When the insulation layer is dried, dry air is passed under the roof membrane on one side of the roof and discharged again at a second point after it has absorbed the moisture in the roof structure. This means that almost all of the moisture can be removed from the insulation layer step by step.
In the case of flat roofs, it is not easily possible to dry off moisture penetrating from the outside by means of rear ventilation. In contrast to most pitched roofs, they are therefore made completely waterproof. Likewise, the resulting condensation can only be removed with difficulty through ventilation. If an inside vapor barrier is not installed completely tightly or if it later leaks, larger amounts of water can collect in the insulation material over the long term.
Work steps
Insulation layer moisture measurement
Before a flat roof insulation layer is dried, a moisture measurement of the insulation layer must be carried out. The result of this forms the basis of the flat roof insulation layer drying.
Flat roof evacuation
With flat roof evacuation, the water in the insulation layer is removed from the roof surface using special pumps . It is thus possible that the insulation layer can be dried in the next step. A flat roof evacuation is the basis for professional insulation drying.
Flat roof insulation drying
Drying the insulation layer on flat roofs ensures that moisture damage in the insulation layer of flat roofs can be removed at low cost. The drying time can be reduced by 50 to 70 percent. The insulating properties of the insulating layer in the flat roof are thus restored. Consequential damage caused by moisture and costly renovations or insulation layer replacement can largely be avoided - the prerequisite for this is of course that the cause of the moisture has already been eliminated. This can be checked by a leak detection .
literature
- Jürgen Knaut, Alexander Berg: Manual of building drying: causes, diagnosis and restoration of water damage in buildings. Fraunhofer Irb, Stuttgart 2013, ISBN 3-816-78449-6 .
- Bernhard Metzger, Helmut Aschenbrenner, Georg Hopfensperger, Stefan Onischke: Construction defects and structural damage. Haufe-Lexware, Freiburg i. Br. 2014, ISBN 9783448097641 .