Insulating Walls

Turbo-fill for wall insulation

Internal and External Walls

Both internal and external timberframe walls can be insulated with cellulose fibre. Typically we use ‘dry injection’ to insulate a wall closed with plasterboard, plywood, OSB or a flexible membrane. Holes are cut to allow insulation to be blown into each cavity. Once insulated, holes are patched. 

If required, we can use a damp-spray method to insulate an open wall. Cellulose fibre is blown though a fine mist of water allowing it to adhere to the inside surfaces of the wall. Excess is scraped off and plasterboard can then be tacked to the studs.


Can I use cellulose in a brick-and-block cavity wall?

Putting cellulose fibre betwen two masonry walls creates a high risk of condensation. Damp can collect in cavities on the inner face of the brickwork. Although cellulose can safely take up and lose high humidity levels, it should not get soaking wet. So it should not be used in this situation.

About Devana

We are specialist installers of cellulose fibre insulation, installing all over the country from our Cambridgeshire base.

With a wealth of experience covering insulation, building and design; we would love to find out how we can help with your project.

Latest Articles

Get in touch

Devana Insulation Limited 
81A Fred Dannatt Road
IP29 7RD

01638 501069

Retrovive Floor

Retrovive Floor is the only system that can install insulation underneath your traditional suspended wooden ground floor WITHOUT taking up all the floorboards.

Visit our Retrovive Floor website for details.