Upgrading the thermal insulation of a building
Initially a choice needs to be made regarding where to position additional insulation in the structure.
Common issues and queries you can face
Internally
Insulation here encroaches on the usable space and causes major disruption to tenants in refurbishment situations. It does not address cold bridging where floors are supported on the external walls. There is a high risk of condensation at these locations as a result. The main external envelope ends up considerably colder than before and as a consequence is vulnerable to freeze thaw degradation.
In the cavity
Popular over the years, cavity insulation is limited due to available space. The external leaf ends up considerably colder than before and therefore vulnerable to freeze thaw degradation. It does not address cold bridging where floors are supported on the external walls. There is a high risk of condensation at these locations as a result. Fully filled cavities may provide a bridge that carries moisture between the wet external and dry internal leaves that wets the insulation and turns it, contrary to purpose, into a very effective cold bridge.
Use External Wall Insulation (EWI) System
External wall insulation arguably provides the technically best option for upgrading thermal insulation in existing construction and for simplifying new construction.
Contact us
If you have any questions or would like assistance, please feel free to get in touch with us.
Find all our products near you in more than 1,000 branches