Thread: Insulation question for the shed??

Evening all

I have been able to find plenty of information on lining sheds. I have decided to go with Plywood for the internal linings. However the question I have is in relation to the insulation. My shed is about 8 x 5m in size so fairly reasonable and is timber frame, with fibre board (not asbestos) external lining. While it has sarking under the metal roof there is not other form of insulation. The frame is made from Oregon and is 75mm deep.

My question is basically should I retrofit some form of vapor permeable barrier prior to insulating the walls, or should I use a foil type insulation (perhaps foam core etc..) for the walls as given the minimal thickness (75mm) of the frame it is not likely I will be able to stuff in a decent thickness or R value rookwool etc..

I have some concerns that if I stuff it full of rockwool without a building wrap then I may suffer from mould etc.. in the future.

Also I would rather not have to remove the external fiber boards so does anyone have experience in installing a wall wrap on the inside of the frame, and basically running it around the internal side of the frame and then onto the inside of the external sheeting. I hope this makes sense.

Am I thinking too much and should I just stuff in some insulation and he line it with plywood?? I have plenty of room in the roof so that will take care of itself and as previously mention the roof already has sarking.

Any advice would be appreciated

Thanks

Stuart