Why use cork for insulation?
If you are looking for a sustainable insulation material with fantastic pedigree that’s 100% natural then look no further than Cork.
It is considered a renewable material because it comes from the bark of the cork oak and which can be repeatedly harvested without killing the tree for over 200 years. While cork has long been an attractive choice for flooring, it is now being used to provide building insulation boards.
The cork granules are treated under pressure and heat to release a natural binder for the expanded cork which is formed into boards and then cut to size. The expanded cork has an insulation value which is very good but isn’t quite as good as the highest performance materials, but is comparable to fiberglass batts.
Expanded cork insulation is at present a comparatively expensive material when compared with other insulation materials. However cork does not rely on petrochemicals for its manufacture, and offers an all-natural insulation product that will definitely appeal to sustainable builders and building owners.
In addition to its energy performance cork insulation is highly flame resistant, helps with sound absorption, and does not off gas any significant VOCs.
Cork as an insulation for external renders is well tried and tested and is well worth your consideration.
- Internal Wall Insulation (Can receive direct plastering, no plasterboard required)
- External Wall Insulation (With or without External Rendering)
- Acoustic Insulation
- Warm-Roof Insulation
- In-Roof Insulation
- Floor Insulation (ontop of or under slab)
- Floor Insulation on top of floorboards
- Light Weight Insulation Screeding System
If you need to know more about insulation, especially about insulating central heating pipes, click here!