Johnny i won't lie to you. Using hand saw as Sliding mitre not set up yet. Lost my vac hose somewhere. Been quite satisfying doing some old skool sawing
Breeze Blocks and Fasteners
- Thread starter Mark-UK
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Good for you.
I remember the days i used hand tools all day long without any pain...
I remember the days i used hand tools all day long without any pain...
Johnny tools are like anything else that have advanced. Love my mitre saw for the quickness and accurate cuts and it saves time. Not for me but time is money if you a tradesman.
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I'm going to use OSB over studwork but I'm not unsure about where the gaps should be.
Is this set up going to work? If the walls start rotting I'm going to cry (the green strip is a vapour barrier).
In case it's important, I will be dealing with the humidity using a dehumidifier (desiccant) and sealing up the place during winter. In summer, it'll be ventilation and fans.
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It's fine.
The only thing that it's a bit overkill is the vapour barrier; isn't this just a shed?
2 inches studs are what i said in the beginning and will provide enough ventilation.
But do you really need the wall boarded up?
As said, you will lose 68mm all around.
If you go for it, get your osb boards from wickes.
I had different sheets outside for a couple of years (wickes, sterling, selco, etc.) The wickes boards were perfectly intact, no discoloration and no water penetration, they seemed to be waterproof.
All the others were swollen with water and grey.
The only thing that it's a bit overkill is the vapour barrier; isn't this just a shed?
2 inches studs are what i said in the beginning and will provide enough ventilation.
But do you really need the wall boarded up?
As said, you will lose 68mm all around.
If you go for it, get your osb boards from wickes.
I had different sheets outside for a couple of years (wickes, sterling, selco, etc.) The wickes boards were perfectly intact, no discoloration and no water penetration, they seemed to be waterproof.
All the others were swollen with water and grey.
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Hi Johnny, thanks for the advice.
The shed is for woodworking so I'll probably be spending a good few hours in there and six days a week. It rarely drops below 9 degrees and after about 10mins at the workbench, I'm usually warm enough that I have to remove my hoodies. That said I definitely want to insulate the walls as it can only make things better, and painted OSB looks better (cosier) than painted breeze block. Otherwise, you're right, I wouldn't bother.
I'm probably being a bit thick here but, if the studs are 2" thick and the insulation is 2" thick, where does the venting occur?
As for the vapour barrier, I've watched a few YT vids and most of them seem to stick it on. I'm new to this though so I've no experience and therefore no preference on vapour barriers, either way.
The shed is for woodworking so I'll probably be spending a good few hours in there and six days a week. It rarely drops below 9 degrees and after about 10mins at the workbench, I'm usually warm enough that I have to remove my hoodies. That said I definitely want to insulate the walls as it can only make things better, and painted OSB looks better (cosier) than painted breeze block. Otherwise, you're right, I wouldn't bother.
I'm probably being a bit thick here but, if the studs are 2" thick and the insulation is 2" thick, where does the venting occur?
As for the vapour barrier, I've watched a few YT vids and most of them seem to stick it on. I'm new to this though so I've no experience and therefore no preference on vapour barriers, either way.
Ah, you're also insulating .
In that case i would either use rockwool between osb and wall or you'll need a bigger cavity.
To prevent moist being sucked by breeze blocks, treat the exterior with a waterproofer.
In that case i would either use rockwool between osb and wall or you'll need a bigger cavity.
To prevent moist being sucked by breeze blocks, treat the exterior with a waterproofer.
Water sealant goes on the outside, unless there's no dpc, in which case it would go on the inside
I would leave the interior so any moisture would be dried by cavity ventilation and blocks stay dry.
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Would I still not need a vapour barrier with Rockwool?
Also, you say go for Rockwool, is that because insulation panels (like Kingspan) are solid and would, therefore, prevent air circulation, thus causing moisture buildup? If so, I could get 1" thick panels, fit them in a 2" gap so there would be 1/2 inch gap either side of them.
Something like:
https://imgur.com/5WpyYAx
EDIT: Sometimes the images display, sometimes they don't, for some reason.
Also, you say go for Rockwool, is that because insulation panels (like Kingspan) are solid and would, therefore, prevent air circulation, thus causing moisture buildup? If so, I could get 1" thick panels, fit them in a 2" gap so there would be 1/2 inch gap either side of them.
Something like:
https://imgur.com/5WpyYAx
EDIT: Sometimes the images display, sometimes they don't, for some reason.
Kingspan are ok, but they need to partially fill the cavity; have a look online for full spec.
In my opinion they're hit and miss with cavity as I have seen lots of problems with the walls.
Differently from rockwool which not only is cheaper, easier to install and breathable, but it has the same insulating value of half thickness kingspan.
It is also fireproof, while some foam insulation are not, tried and tested they catch fire very easily.
Not all of them though, that's why I use a particular brand.
In my opinion they're hit and miss with cavity as I have seen lots of problems with the walls.
Differently from rockwool which not only is cheaper, easier to install and breathable, but it has the same insulating value of half thickness kingspan.
It is also fireproof, while some foam insulation are not, tried and tested they catch fire very easily.
Not all of them though, that's why I use a particular brand.
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