Internal insulation on external wall

[chriseastlondon]

Hi. I live in a Victorian terrace house. I've got builders starting in a week. They're going to strip some damaged plasterboard off an external brick wall, which has been applied by dot and dab. I had a survey recently and the surveyor recommended adding insulation.

This is the product I thought I'd order:

https://www.insulationshop.co/62.5mm-unilin-safe-r-sr-tb-composite-plasterboard-dot-dab.html

Does that look like a reasonable choice? Grateful for any advice. Thanks.