This is filling the insulation material within the cavity created by two brick walls .More often these are the external walls of the premise.
Cavity wall insulation acts as a blanket to help stop heat escaping through the walls . It will keep your premise warmer in the winter and cooler in the summer and will help to create an even temperature . Filling the air space within the cavity with an insulation material immobilises the air within the cavity (air is still the actual insulator), preventing convection, and can substantially reduce space heating/cooling costs. This way it is helping you to save money on your energy bills year after year.
Suggested Material for False Ceiling Insulation:
- Fiberglass wool.
- XPS
- Non Crosslinked Expanded Polyethyene Foam
- PUF