Head insulation in house separating cavity walls. With the Airtight, an airtight as well as a thermal and acoustic seal between building parts is realized surprisingly easily in one operation. The Airtight consists of a vacuumed strip of mineral wool wrapped in a vapor barrier PE-foil. After placing and puncturing the vacuum foil, the wool expands and the Airtight completely fills the entire space.
The realized connection is thermally insulated, airtight and fireproof. The Airtight can be used for variable cavity widths and ensures a guaranteed airtightness of the floors. For an airtight seal of class 3 'passive construction', the mineral wool must be twice as thick as the connection to be closed. The Airtight is light and thin and therefore easy to assemble. It is resistant to all weather influences and after application has a high mechanical resistance and will not be damaged as a result.
The mineral wool is vacuum-sealed for airtight applications. After installation, the mineral wool can expand in a controlled manner by puncturing it to fill the space separating the house between the hollow-core slab floors. The mineral wool base falls into the highest fire class (A1, according to NEN-EN 13501-1). The PE-foil is flame retardant.
Advantages
No internal condensation, thermally sealed
Airtightness of the composite structure, airtight
No impact sound etc., soundproof
Very easy and fast assembly
No propellants or chemicals
Ready immediately without waste, easy to separate at demolition
Applicable for variable cavity widths, such as those encountered in prefab construction
