I wasn't planning to, only because i had read on here that it wasn't required. I hadn't taken in to account geographical differences and whether it would be accepted or not. I will speak to my father in law who is a retired architectural technician and get his views. We haven't discussed it much with him yet as we are trying to source land first. And unfortunately despite what we have been told by the agent, the owner may not want to split up his land!
Through my work i occasionally have dealings with a large cladding contract in council houses. They use a grey polystyrene product, they usually use 100mm then render on top but i am not sure i would need that with what is in the Kit already. Is there such a thing as too much insulation though? I have only had a couple of emails from scotframe, really about it, i liked what they offered in theory. I will learn more about the details and check things with them before proceeding. I also liked that they have a house design "off the shelf" which we liked and on paper could afford... However they don't erect so Vat payable (claimed back at the end) The kit we liked was Scotframe forth
I would want the kit erected and then do everything else myself, we have just completed a large extension at home and did the same thing, so i know what i would be letting myself in for except on a much larger scale.
There are another couple of things that people have commented on and i will comment myself later, but splitting childcare while we both work from home, so i am about to go and play with a Thomas the tank train set...