Insulation

[welshwarrior]

What's the best material to put on a single brick skin workshop to keep in the warmth next winter?

 

I'm thinking the foil coated foam stuff but know very little about building.

[Alex C]

Kingspan or Celotex is the most commonly used. Its not cheap but does work. Should be stocked by most builders merchants.

[stubby]

we use 8x4 x 2" sheets of polystyrene

[welshwarrior]

Kingspan is what I meant, I looked at polystyrene sheets but don't want to find little white balls every where for the next year.

[Bluebarrels]

Kingspan is what I meant, I looked at polystyrene sheets but don't want to find little white balls every where for the next year.

And if you decide on using sheets of kingspan and need to cut it to size don't mess about with a Stanley knife etc ,get a full size wood saw on the job and it can be a very messy/dusty job BB

[bullet1747]

Kingspan is what I meant, I looked at polystyrene sheets but don't want to find little white balls every where for the next year.

Stick ply on top some were to hang tools on ,no white balls all over ,had a few linters do this while a wired the concrete garages up

[Asa Bear]

we use 8x4 x 2" sheets of polystyrene

Much cheaper than Celotex and more than adequate for a workshop. As has already been said cover with ply, job done.

[WGD]

Polystyrene will be cheaper but will not perform as well. Don't get stuck on Kingspan, get prices for celotex, quinntherm, recticel etc. 50mm should be thick enough for a workshop, thicker the better but the price builds up pretty quick with that stuff!

[mark@mbb]

Google 2nds kingspan there is a company in north wales that deliver all over the country it as cheap as chips pm me if you want there telephone number

[VINCED 686]

As most of the posts say kingspan or any form of ridgid insulation. Make sure all your joints are tight and you leave an air gap between the insulation and external wall. 25mm will do it. You can get an insulation saw as well....... no dust !! There is nothing worse than getting that stuff all over you, it itches like hell and if you get it in your eyes ... If you hunt on line ther are companys that sell damaged boards at a big discount. They are not badly damaged just a bit scrached or the foil is pealing off. If your covering it in ply put a vapour barrier on first (1200guage poythene) otherwise it will sweat. Other than that your good to go.

 

Have fun !!

[welshwarrior]

That seconds looks good I don't need a huge amount as its only a little workshop. But I'm abit concerned about loosing 6 inches on all width and length if I need to give a 25mm air gap then 50mm insulation that's 3"

 

Now the work shop has only one fully external face 2 other but onto other shops and one to a covered alley. Can I reduce my coverage?

 

What's more important the air gap or an extra inch of insulation?

[VINCED 686]

the air gap (belive it or not) makes the insulation more efective as it reduces condensation and creates a cold surface break. Think of how the double glazing in your house works......... same principle. If your worried about space you could try Tri-iso or another multi quilt foil insulation but you will need the air gap still. Another solution is to liquid dpm all the walls and dot n dab thermo board (quite expensive)

I would put more insulation on the external walls and go thinner on the internals. Also concentrate on the ceiling and any door ways. make sure your air tight. Youll be amazed how much heat you will lose with draugths.

That seconds looks good I don't need a huge amount as its only a little workshop. But I'm abit concerned about loosing 6 inches on all width and length if I need to give a 25mm air gap then 50mm insulation that's 3"

Now the work shop has only one fully external face 2 other but onto other shops and one to a covered alley. Can I reduce my coverage?

What's more important the air gap or an extra inch of insulation?

Edited May 7, 2013 by VINCED 686