5 Basic Do’s and Don’ts when having CWI and EWI insulation retrofits. - CIT

5 Basic Do’s and Don’ts when having CWI and EWI Insulation retrofits.

Guidance on CWI and EWI insulation retrofits for Local Authorities, Housing Associations, and homeowners facing difficulties.

While there is no one size fit all to CWI and EWI insulation retrofits, there are some basic do’s and don’ts which can help remove the complications many face with this sometimes complicated procedure.  

Currently in the UK, many Local Authorities, Housing Associations, and homeowners are facing difficulties maintaining and improving properties that have become seriously damaged by the effects of poor insulation retrofits installed many years ago. Unfortunately, as these inadequate installations becoming more commonplace and affects the value of properties, this ends up causing issues with insurance claims, and impacting on the health of the occupants.

To help guide you on this complicated issue, we have put together a list of Do’s and Don’ts which should help being making your Cavity Wall and External Wall Insulation retrofit more understandable and easier to navigate.  

Top 5 Do’s

  1. Always ensure that the building is in suitable condition; for example, the walls should have no holes, no rotten windows, and no cracks
  2. Make sure that the assessment is completed by a suitability qualified Assessor, they should be a member of a scheme such as the BBA Cavity Assessment Surveillance Scheme (CASS)
  3. For Cavity Wall Insulation, make sure that the assessment is Lodged and assessed by an accredited 3rd party. For External Wall Insulation, ensure that the products to be installed holds the appropriate Certification such as a BBA Agrément Certification
  4. Always ensure that the installing company is suitability competent, qualified and accredited. For example, they should be a member of a scheme such as the BBA Assessment and Surveillance Scheme for Installers of Cavity Wall Insulation
  5. Make sure you receive a guarantee of works completed and that you understand it. Not all guarantees will cover everything, you may have responsibilities as well

Top 5 Don’ts

  1. Don’t allow a system to be installed if the outside of the building isn’t suitable. E.g. holes, rotten windows, and cracks
  2. Don’t take the assessors word for it. Get a written copy of the assessment, including any photographic evidence. This report should detail exactly what you have agreed to have installed
  3. Don’t allow work to go ahead if you feel the property needs remediation, for example, to fix windows or cracks
  4. Don’t let the installers “get on with it”. Watch them and ensure that they take you through the process – pre, during and post installation
  5. Don’t forget to read your guarantee and understand it. Don’t assume that it covers everything, understand your responsibilities

While this list is not exhaustive, the above can begin helping you better understand what to look out for in this complicated arena.

If you are ever unsure about the advise you are receiving, be sure to ask your assessor or installer questions and, if appropriate, seek a second opinion.

Published 15th August 2018