mrbig
West Midlands
Semi-professional Procrastinator
Posts: 505
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So I've been collecting materials to start panelling out my single skin brick built garage. I want to make it warmer, but primarily want to reduce the level of dust that accumulates over everything. My plan to do the walls is a CLS frame, with celotex inside and then board over the top. Someone suggested instead of plasterboard that OSB would be good then I can easily attach things to the wall. This is a great idea as I have a big collection of number plates, signs and various car related things I would like to display. Before I start on sunday, a couple of questions: Should I use a vapour barrier? If so what should I use and should it go between the frame/celotex and the OSB? Will this stuff work ok? www.screwfix.com/p/capital-valley-plastics-ltd-vapour-barrier-green-300ga-20-x-2-5m/12869If so, and then I screw into the OSB does it matter if the screw punctures the vapour barrier. I've only got 9mm OSB and I can't really afford to replace it now! Apologies for the lack of pictures so far, hopefully I'll be able to bring you some over the weekend! Thanks in advance, Craig. |
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1969 German Look Beetle - in progress
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Vapour barrier is always placed on the warm side ie. insulation behind or in the stud work, VB then the OSB planted on to the studding. I think thats what you described. Screws going through the OSB no problem, the VB will be sealed closed by the OSB onto the studding.
Unless you are going to heat the garaged as you would your house there is some debate regarding the value of a VB. The idea is that the warm air inside the building carries more moisture and this must be stopped from migrating through the internal finish (OSB in your case) and condensing on the cold outer skin / wall. The choice is yours but compared to the cost of everything else in the project the cost is peanuts and it can be tacked to the studding with a staple gun before putting up the OSB in a few minutes.
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mrbig
West Midlands
Semi-professional Procrastinator
Posts: 505
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No plans to heat the garage at the moment, although I may well put a dehumidifier in and I believe those tend to have a slight warming effect as well as drying the air. I may as well do a VB now as its easier than refitting it later!
Thanks for your reply, much appreciated!
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1969 German Look Beetle - in progress
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Vapour barrier is always placed on the warm side ie. insulation behind or in the stud work, VB then the OSB planted on to the studding. I think thats what you described. Screws going through the OSB no problem, the VB will be sealed closed by the OSB onto the studding. Unless you are going to heat the garaged as you would your house there is some debate regarding the value of a VB. The idea is that the warm air inside the building carries more moisture and this must be stopped from migrating through the internal finish (OSB in your case) and condensing on the cold outer skin / wall. The choice is yours but compared to the cost of everything else in the project the cost is peanuts and it can be tacked to the studding with a staple gun before putting up the OSB in a few minutes. Spot on advice here. Only comment to add is we would use a min 500 gauge vapour barrier (normally 1000 gauge). But as it’s an unheated space I’m not sure I’d go to the trouble of the extra expense. We generally tend to use this novia.co.uk/vapour-control-layers/500G-vcl |
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Mar 10, 2022 11:28:28 GMT
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If you are using Celotex/kingspan type insulation, this stuff looks great (I didnt even know it existed until last week)
I have a similar project to the video coming up so will be looking into using it. Some good tips on there as well, cutting kingspan is not fun & I always end up covered in the dust lol.
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Mar 10, 2022 20:54:29 GMT
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Quickest way to cut kingspan is with a table saw, just set your guide to the required width, ideally use vacuum dust extraction.
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mrbig
West Midlands
Semi-professional Procrastinator
Posts: 505
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Mar 15, 2022 15:34:47 GMT
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Unfortunately I don't have a table saw, or dust extraction. So what I actually have now is a driveway that looks like it belongs in Verbier  |
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Last Edit: Mar 15, 2022 15:35:05 GMT by mrbig
1969 German Look Beetle - in progress
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I did use a table saw with dust extractor to cut some of the Kingspan that I got for my garage but found the pipe got blocked too easily and the resulting mess was worse than using a dedicated handsaw for insulation to cut it.
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