Shed insulation

[antihero]

Hi Guys,
First thread here so bear with me.
Shall be ordering my shed/workshop in the next few days and need some advice with regards to insulation.
Its going to be a small 8x14,3/4" T&G,3x1and1/2"framing,apex roof,your basic B+Q type thingy but hopefully the build quality will be much better,stronger.
Its going to be used for hobby use(evening and weekends)but as my hobby is building/repairing guitars its important that the working enviroment is as stable as possible.
I cant afford to have the company do the full insulation but is there anything I can have them do as they build that wont cost to much and will save me time/money later on or do I just wait until i have the pennies and perfrom the full insulation at a later date by myself.
With regards to the insulation,can someone take me through the layers so to speak as I'm in a little confusion as to what order they go and what exactly I need.
Finally I have a 4x6 double glazed window donated by my brother and was thinking of having this installed into the shed as natural light will be important when working with finishes etc.Do you guys think this window will be to big?
Sorry for the long winded questions but if you don't ask you'll never know.
Thanks for any help.

 

[OLD]

Breathing felt could be installed between the cladding and the frame but its quite expensive this will allow you to install insulation between the studs later.You will need a lintel above the window to take the roof load which may bring the bottom of the window below bench height .

 

[antihero]

Hi Old,
Thanks for the reply.Excuse my ignorance but what exactly is this "breathing felt" and how expensive is it?

 

[OLD]

Here is a ebay link
I use B&Q similar stuff its a little cheaper.

 

[antihero]

Is this also suitable?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... :IT&ih=001

 

[OLD]

Yes just ebay what you donot use.

 

[Escudo]

Hello there Anti, I am also interested in this subject. I was wondering if this material was suitable for insulating my workshop?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... :IT&ih=019

Is it appropriate to just fit this between the frame sandwiched between the outer T & G boards and the internal cladding? Does this have to be a tight fit to be fully effective? - Does it matter if the thickness of this material is less than the width of the frame?

I have seen some insulation material that does not have foil on the outside is this an inferior product and worth avoiding?

I think I am right in saying that insulation can help keep the workshop cool in the summer as well as warm in the winter months.

Thanks for any help comments, Regards, Tony.

 

[Mark Hancock]

Tony

I have the Kingspan as ceiling insulation in my workshop and it's very effective. Fitting it between the studding/frame of your shed should work well. It's easy to cut to size and only needs to be a push fit. I used a similar method on a wooden shed I bought to use as a timber store/ drying room except then I used jacobite (?) polystyrene sheets. It worked great by maintaining a pretty constant temperature inside the shed regardless of the outside weather conditions.

 

[antihero]

Spoke to the company building my shed and they won't perform the installation of the breather felt unless I pay them to use there own material at cost,so looks like I'll be doing this myself once I get the shed.
Obviously this will mean the breather layer will not be between the cladding and frame but on the inside over the frame....will this still be effective???
Also,I know I'm supposed to include an air gap between the vapour layer and insulation....how much of a gap should I leave and how is this acheived?(how do I stop the insulation filling the air gap?)
Thanks again for any replys.