Insulating Wooden Summer house

[Wordy]

Hi,

I am looking to insulate my wooden summer house / log cabin to be able to use it all year round for a kids playhouse. Presently the building is completely uninsulated.

I am thinking of screwing some battens to the walls & ceiling, filling the gaps with foam or glassfibre insulation and then attaching plasterboard over the top. Would this cause any damp issues ?

What would provide the best insulating properties without me losing too much internal space in the room ? As with everything I am on a budget, and I am guessing that the foam insulation is more expensive ? The building is about 19' x 12', so I am looking at quite a large area.

Thanks in advance,

Paul...

[Christian McArdle]

Use celotex or kingspan. I did something similar to my shed (but it was only

10' x 12'). Insulation was obtained from The boards are very easy to work with and have the best insulation u-Values for the thickness.

Christian.

[Jim Alexander]

The easiest way is just to friction fit celotex/kingspan between the studs. Not cheap but unlike glassfibre or rockwool won't be bothered by moisture. There are a couple of Ebay outlets which appear to offer good value compared with builders merchants.

Jim A

[Chris Bacon]

Jablite and similar are much cheaper, although they don't have the same insulation value. It doesn't suffer from being wet, either. He could use

50mm or 75mm, or a combination of thicknesses, and overboard inside with something.

[John Rumm]

Places like seconds and co are handy. Also note that there are plenty of other brands of PIR foam than just celotex and kingspan - many of which are very much cheaper. Ecotherm is usually about half to a third the price.

[Chris Bacon]

So how does "Ecotherm" compare physically, and in price, to Kingspan? Jolly interesting.

[John Rumm]

Physically it looks and feels pretty much the same - foil either side, foam in the middle. Pretty ridgid but cuts with a knife.

The local Jewsons wanted about £32/sheet for 8'x4' sheets of 50mm celotex, I was getting ecotherm at £14/sheet for new, and £12/sheet for seconds.

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