Cavity Wall Insulation
Using the cavity wall insulation method means the insulation material (glass wool, rock wool, EPS granules or mineral granules) are blown into a double brick wall construction (cavity wall) through a very thin injection hole. In general, the cavity is filled up from the bottom to the top with insulation material. This behaviour depends on the insulation material and it must be filled in according to the manufacturer's specifications.
In the best case, the insulation material fills the cavity completely, free from gaps and with a consistent density. Now the thermal insulation is finished. The consistent allocation and density are of vital importance for the insulation qualities and settlement safety.
The blowing injection tools are injection nozzles with diameters from 18 to 25 mm. They can be equipped with rotatable nozzle heads and special formed nozzle outlets.
Typical blowing insulation materials
- Glass wool
- Rock wool
- EPS granules
- Mineral granules