Dear Mr Elmer, i do sincerely apologise for your experience with us, having looked into this matter, you originally contracted us, as you had sprayfoam in your loft. We then made you aware of the issues that this could cause, we do believe that you was somewhat aware of this already, An assessment of your rafters and loft was carried out, an you agreed with our finding that a re roof was needed, we then discovered that you had sprayfoam, sprayed directly on to your roof tiles. We gave you a price on the cost of re roof, we you agreed to and paid a deposit. On the day we started work, we discovered that your rafter and joist had more damage to them. we then gave you a price the extra work that needed to be carried out, you then agreed to get the extra work to be completed. Photographic evidence is there for you to see as to why we recommended the extra work to be carried out. I am fully aware of the mess that was created as a result of this work bring carried out, for which i cant apologise enough. I do believe that a number of trips were made by our staff to clear this mess up. We did then compensate you on this with the price. We have below left a link that shows the dangers and problems sparyfoam can cause.
https://www.bbc.co.uk/news/business-63607793