Insulating conservatory floor..

Well, not insulating it as such.. been making some mods to make it more winter friendly, the idea being that it wont be as cold this year so can be used by our young boys more..
Have sealed, insulated and plasterboarded the roof/ceiling, windows and doors have been re-sealed to cut down on drafts, and have fitted blinds and curtains.
Was looking at vinyl flooring on top of the solid concrete and tiled floor, prob with a ply subfloor between them. Was looking to try and keep it warm so was wondering if theres some sort of foil mid-layer we could use just to prevent a bit more heat loss? We’ve only got scope to raise the height by about 10mm or so so not much room to play with.. any thoughts? Anyone done something similar?

althepal – have you got any pics of the work you have already done?

We had a specialist firm round who quoted us over £12k to replace our plastic roof with a more insulated model

After spraying the salesman with coffee , he left a bit miffed

Foam tiles? Very cheap, go down in 5 mins and can be taken back up again for summer. Ebay

Superfoil?[/url]

To be honest mate its still the polycarb roof thats on there.. have made sure its totally watertight though.
Reflective foil attached to the underside, bit of an airgap then 150 foil blanket loft insulation we had spare between joists, then foil-backed plasterboard attached to form a vaulted ceiling. Skimmed it yesterday but didnt do a great job so still some sanding to do. Could have used kingspan or something similar for insulation but money was tight and had the loft stuff spare. Its an old wooden framed wickes one so needs the outside maintained but meant it was easy to screw stuff onto it.
I saw a thread somewhere on thr web where a guy had done something similar but in a alu framed one.. reflective foil, lightweight kingspan (or similar) then pvc cladding boards… looked good actually!

Wrightyson.. aye saw that but wasnt sure if it was only to be used with yhe rest of the sytem..?
Ski, sorting some pics now.. will have a look on screwfix for the thread where the guy did it with the alu framed one..

That looks pretty neat, however (sorry in advance) will condensation not be your enemy due to a lack of ventilation between the insulation / polycarbonate sheets?

Wooden battens between it and the roof to keep the air moving.. hopefully.
Like I said.. wish id just bought kingspan or something but money and time were tight.
If I have to do it again in a few years thats the way I’ll go and get a plasterer to skim it properly this time!

I stuck soace blanket between my concrete floor and my wooden floor

You can feel the temp difference when you walk from one to tuther in bare feet

Space blanket even. The foil bubble wrap

When laying our wooden floor in the light room about 6 years ago I drawn to a thin rubber underlay, it was foil backed and supposedly super stuff, cost a heck of a lot though.

On this basis I’d suggest looking at the options for thin foil backed underlay that is sold with laminate flooring.

Regarding the comments on ventilation just having a void won’t deal with it, you’d need some sort of venting to let air pass in and out.

It was pretty drafty to be honest so im not to concerned about air circulating.. if I get a couple of years out it I’ll be happy I suppose!
Cheers for the suggestions folks!

Log burner and/or socks.

Try fibreboard underlay under laminate? I fitted it in my daughter’s bedroom and the floor always feels comfortable on bare feet.

Wooden battens between it and the roof to keep the air moving.. hopefully.

How do they keep the air moving then?

You need some ventilation to either exterior or interior to allow circulation.