Cavity Wall Insulation Extraction
Cavity wall insulation is removed by using an industrial vacuum type machine; the nozzle will be positioned in the brick wall using the drilling pattern the contractor used when installing the insulation.
For the removal of insulation contractors will start from the base of the property, working their way up in the drilling pattern from the install.It’s important to check that all the insulation has been removed and that the cavity wall is free from any materials and that an active damp course is in place.
Cavity wall extraction usually takes around two days to complete although it would depend on the size of the property.
There are certain materials than can be extracted from cavity walls which are:
- Expanded polystyrene beads
- Rockwool mineral fibre
- Whitewool glass mineral fibre
- Loose/bonded urea formaldehyde insulation
The cost to complete an extraction and re-install can cost several thousands of pounds, always check your contractor has the right certification to do this work and is registered with www.ciga.co.uk
This process will typically be done when it has been proven the install was incorrect, is causing damp or other issues, and generally will require a full extraction, clean, and reinstallation if required.
9 Comments
Should cavity wall insulation be installed into a house built out of stone?
Hi. There is a BBA certificate for stone properties. Many properties should be assessed on individual circumstances on location, condition of property etc.
It is always best to ensure you seek proper professional advice.
http://www.networkenergyltd.co.uk/images/pdf/SIG%20CWI.pdf
http://www.oscar-onsite.co.uk
I need advice on how to remove , do I have a claim ? And what does your service entail ?
Your help would greatly be appreciated
Hi Amran
If you have faulty insulation the first thing to do is to report it to CIGA ‘ https://ciga.co.uk who should send an inspector to check and see if the insulation has failed. Depending on their view after the survey depends how you proceed. https://oscaronsite.co.uk offer a CAVITY WALL INSULATION CONDITION INSPECTION SURVEY for £295 including VAT, and a Chartered Surveyors survey and report on the insulation and the condition of the external walls are all reviewed and gives you best advice, which may conflict with CIGA, but RICS – Royal Institute of Chartered Surveyors are very well placed to support on an independent and professional level.
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