shed insulation, advice please

[Imalumberjack]

I run my business from my shed (I like to call it a studio - but you get the picture). In the winter it's freezing so I'm looking into insulating it.

I'd like to put rockwool and then kingspan on top. Question is, I don't really want to pay for plasterboard to be put on top (materials and labour) and I think the rockwool and kingspan will suffice. However, the reflective surface will not work in terms of aesthetics, and I wondered, can I paint directly on to the kingspan? Has anyone tried this?

Many thanks, all input appreciated.

 

[foxhole]

If it's a shed then plasterboard will get too damp, I line my garage with 12mm ply, less work , and provides sound surface to mount shelves etc.
What are you heating with?, insulation will not make it warmer unless you have a good heat source.

 

[Imalumberjack]

it's fully fitted for electric so I have electric heaters. It's just at the moment all the heat escapes so quickly.

Why is 12mm ply less work? Is it also less expensive?

thanks.

 

[foxhole]

Ply does not need to be skimmed like the plasterboard and is much more resilient to damp conditions.I bought mine on ebay £7 a sheet delivered.