This is not an exhaustive or a complete subject. It is likely to change over time, with edits, additions and deletions, and is simply a collection of my thoughts based on many years of experience. You should follow your instincts, and you must always seek your own professional advice.
There are an increasing number of failed fully funded Ec04 retrofit projects. This one related to a substantial project undertaken to a traditional stone built farmhouse in North Wales.
This is a substantial project which should never have happened at all. There was never a ‘do nothing’ scenario.
The PAS 2035 procedure was followed, but it is flawed and does not place adequate attention to the condition of the building before anything starts. In this case, there was always a presumption that the project would go ahead.
8 months after completion, the first signs of dry rot were seen, resulting is a major strip-out of the affected area. The SWIP internal wall insulation should never have been used and it was not installed correctly.
Update: February 2025
This hearing on Parliament tv is well worth a watch for an insight into the reality of failed retrofit projects..:
Parliament hearing about failed retrofit
Disclaimer: Anything posted in this Blog is for general information only and it is not in any way intended to provide any advice, legal or otherwise, on any general or specific matter that you can rely on. You should always seek your own legal and surveying advice.