Cavity wall insulation extraction is a system where previously fitted insulation is replaced by a more modern and energy efficient product from the cavity wall of existing houses and buildings.
We can extract a variety of inferior insulation products such as glass fibre and bead from your cavity walls. These insulation products may absorb shrink and settle which reduces the insulations performance, creates thermal bridges within the wall.
The first step is for us to come out to survey your walls with a borescope and advise you on your extraction and re-insulation options. We use a videographer to monitor and record the extraction process to monitor and to ensure that the cavities are clean. We offer a certificate of cleanliness afterwards.
Extraction can generally be done within one or two days with minimal disturbance to you or your home. After extraction our trained and experienced technicians will be able to install the latest highly efficient silver bonded bead to bring your building in line with SEAI Standards.
Extraction process:
If the property is of brick construction we remove a brick at the bottom of the walls to allow the extraction machine to vacuum out the old insulation material. If the property has a render finish we drill a core at the bottom of the walls for this purpose.
Some of the initial holes previously drilled for the insulation install can be re-drilled and used for the extraction process.
We insert pressure lines to blow the insulation down to the vacuum points at the bottom of the walls. A whip hose is also used to break up the old insulation.
After each section is cleared we use the videographer to survey and record making sure the cavity is clean.
Once the process is complete we reinstate the removed bricks or cores drilled.
All waste materials are removed by us and disposed by a registered waste company.
The property is now ready for re-insulation with our NSAI approved high density silver bonded bead
