Hi,

I would like some advice please?

I have a completely open loft (no wooden beams etc across the space)
with concrete floor and no insulation or cladding (you can see the
underside of the tiles etc...)

I'd like to use this space as an office but the temperature varies a lot
with no insulation etc.

What's the cheapest way to sort this out. I have been told that
cardboard makes a reasonable choice, but I guess it doesn't look good
and is certainly a fire risk. I don't want to spend much money as the
house isn't mine...

Would some insulation material and a load of plasterboard do the job?

Thanks for any advice..

Alex