PAROC® Air™ ventilated roofs increase the safety and soundness of flat roofs. Through grooves in the insulation, PAROC Air ventilates and dries moisture very quickly and provides an effective and simple solution to avoid moisture in structures.
Moisture in structures is a major risk factor that you want to avoid. If moisture stays in the structure for an extended period of time, mildew may form in the material that is in contact with stone wool. A ventilated flat roof reduces moisture already at the construction phase and buildings can be brought into use earlier since problems related to moisture can be avoided.
The ventilated solution uses natural draught to quickly transport moisture away from the flat roof. To protect from outer moisture leakage, in the form of rain and snow, use a normal roof membrane. To protect against moisture from the inside air being collected and built in to the structure, place the vapour barrier around 50 mm up in the insulation, which is protected itself by the under layer slab. The tightening of the roof structure maintains the balance of inside and outside temperature, moisture and pressure.
Moisture in buildings
- bad indoor air qualities that affect the occupants' health and comfort
- deterioration of building materials and structures
VTT research report on critical performance parameters in ventilated roofs (pdf, size 1 Mb) >>
The roof slabs and boards are non-combustible stone wool insulation for use as a load bearing thermal insulation layer of existing and new flat roofs. The roof insulation slab is developed to provide sustainable, hard and fire safe bedding for rigid top insulation layers as well as insulating the bearing layer in renovation sites. The suitable roof slab for flat roof will be chosen based on the product's mechanical properties and thermal conductivity.