The Home Is Where The Groom Is
I have recently moved my groom to a slightly larger area

No complaints here, barr the fact I have had a few leaks and the day after moving my ladies in, we had a months of rainfall in one day!

Who sang the rain dance....?
I have partly planned, designed and priced (roughly) for the job. Although I don't think it will be quite the same as Keeno's loft build, it will be different so may give all you guys a new angle of appraoch...?
I looked at using kingspan type insulated sheeting as you can obtain various sizes and thickness to suit. This does surprisingly come very expensive though and also by the time you have installed it and banged against it a few times with various items alomng the years there won't be much left of it.
So, trawling through the depths of the internet last night I had a brain wave

why hadn't thought of this before....?

Anyway,
cold room insulation sheet which has a UPVC type skin and comes 50mm to 100mm thick. This would be perfect, not only this, you can get it fairly cheap as there is a competitive market it seems, but iv differing lengths. Lovely Jubbly.
After having this idea I thought starting a discussion here would mean others could follow along or steal my idea/s
Enjoy and await the pictures, tips and tricks as I build my sealed groom in a room.
Treat people as if they were what they ought to be and you help them to become what they are capable of being.”
JOHANN WOLFGANG VON GOETHE
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"Insects and disease are the symptoms of a failing crop, not the cause of it. It's not the overpowering invader we must fear but the weakened condition of the victim."
William Albrecht
https://www.organacanna.co.uk/