Air-injected insulation
Air-injected insulation is a solution for homeowners and other building operators looking to insulate their properties. It is a method of applying insulation that uses specialist equipment to blow the insulation into spaces between structural timber studs, joists or rafters. STEICOzell and STEICOtimberfloc air-injected insulation are blown-in insulation products suitable for buildings of all types that provides a range of benefits.
What is air-injected insulation and how does it work?

Air-injected insulation refers to the process of filling a space or cavity with loose-fill insulation, for example a timber wall system or in between joists in the loft of a house. It can be used in conjunction with rigid insulation boards and is especially useful when you want to insulate a space which is unusually shaped or hard to reach.
The process of installation is simple and quick but needs to be carried out by an expert with the right equipment. It is ideal to use in new build construction between timber frame studs or rafters.
The potential benefits of blown-in insulation
Air-injected insulation can offer a range of benefits when specified and installed correctly. Some are similar to other types of insulation; others are unique to air-injectedsolutions. They include:
- Thermal efficiency – Blown-in insulation can improve the thermal efficiency of your home.
- Acoustic insulation – It has the potential to improve the acoustic performance of your home.
- Insulate any space – Blow-in insulation can be used for cavities of any size or shape, as well as hard-to-reach spaces.
- No joints or seams – There are no joints or seams in blown-in insulation which could potentially reduce thermal performance.
The key features of STEICOzell and STEICOtimberfloc air-injected insulation
STEICOzell and STEICOtimberfloc are air-injected insulation products made from wood fibres which can be blown in to any wall or loft cavity in need of insulating. It’s suitable for both new builds and renovation projects, with the following key features:
- Responsible sourcing – All timber used in STEICOzell and STEICOtimberfloc is sourced from PEFC-accredited forests (PEFC/04-31-2550).
- Carbon storage – Each cubic metre of STEICOzell andSTEICOtimberfloc binds 71kg CO2eq and 65kg CO2eq respectively at Lifecycle Stage A1 as defined in EN 15804+A2, helping it contribute to the overall sustainability goals of your building.
- Insulates cavities of all shapes and sizes - Free of joints and waste once blown in.
- Cost-effective – Low density thanks to three-dimensional interlocking of the wood fibres which means material requirements are optimised.
- Suitable for on-site assembly and prefabrication – All types of builds can use blown-in insulation.






