Hi guys,
Pictures of the shed I finished building at last: http://imgur.com/a/IU8gI
Floor joists and roof joists are 6x2, studs are 4x2. All wood is C24. Cladding is 27mm x 144mm weatherboard. All pressure treated. Flooring is 18mm marine plywood and roofing is 12mm marine plywood with felt on top.
Size is 4.8mx3m (a bit less than 15sqm). Height is 2450mm.
My follow up question, after I built it and checked out how to insulate a workshop instead of a shed, I read about the need for the breathable mebrane and vapour barrier for constant-temperature buildings.
Basically:
Cladding -> 25mm Air Gap -> Membrane -> 75mm Insulation -> Vapour Barrier
Since I already built it, I can't do the trick with the batons to keep the air gap between the cladding and the breathable mebrane. I was reading about stapling the membrane to the joists, but that can't be too accurate. Any advice how to do this post-build without taking the whole thing apart again?
Follow up questions:
1) My roof is ventilated, so I dont need a breathable membrane in the roof. Do I literally just put 100mm Celotex, leaving a 50mm gap above for the air to flow, and then use a vapour barrier around the whole shed?
2) Since my cladding is weatherboard and thus not air tight, does that mean it also doesn't need a breathable membrane but a bigger air gap? Not sure how this works...
3) I understand the breathable membrane is suppose to somehow protect the insulation from outside moisture and the VB protects from inside moisture / vapour. If you install an airtight VB, and your shed is windowless... And it's heated but you don't visit every day in order to open the door... How do you get rid of the trapped vapour? Are you suppose to add vents? Wont the vents help the heat escape faster too?
Pictures of the shed I finished building at last: http://imgur.com/a/IU8gI
Floor joists and roof joists are 6x2, studs are 4x2. All wood is C24. Cladding is 27mm x 144mm weatherboard. All pressure treated. Flooring is 18mm marine plywood and roofing is 12mm marine plywood with felt on top.
Size is 4.8mx3m (a bit less than 15sqm). Height is 2450mm.
My follow up question, after I built it and checked out how to insulate a workshop instead of a shed, I read about the need for the breathable mebrane and vapour barrier for constant-temperature buildings.
Basically:
Cladding -> 25mm Air Gap -> Membrane -> 75mm Insulation -> Vapour Barrier
Since I already built it, I can't do the trick with the batons to keep the air gap between the cladding and the breathable mebrane. I was reading about stapling the membrane to the joists, but that can't be too accurate. Any advice how to do this post-build without taking the whole thing apart again?
Follow up questions:
1) My roof is ventilated, so I dont need a breathable membrane in the roof. Do I literally just put 100mm Celotex, leaving a 50mm gap above for the air to flow, and then use a vapour barrier around the whole shed?
2) Since my cladding is weatherboard and thus not air tight, does that mean it also doesn't need a breathable membrane but a bigger air gap? Not sure how this works...
3) I understand the breathable membrane is suppose to somehow protect the insulation from outside moisture and the VB protects from inside moisture / vapour. If you install an airtight VB, and your shed is windowless... And it's heated but you don't visit every day in order to open the door... How do you get rid of the trapped vapour? Are you suppose to add vents? Wont the vents help the heat escape faster too?