CC45 Posted October 23, 2016 Posted October 23, 2016 Hi, Need to think about the vapour barrier soon - the options seem to go from Visqueen up to far more expensive Tyvek airguard etc. The price of the latter scares me, so I'm considering using Visqueen - does anyone know of a good tape to go with it? What about tapes designed for dpm? Thanks CC
pmcbythesea Posted October 24, 2016 Posted October 24, 2016 Aluminium tape from Toolstation (other suppliers are available) does for me but I've only been using it round window reveals on top of Spacetherm.
CC45 Posted October 24, 2016 Author Posted October 24, 2016 OK, will that be still stuck on in a few years time?? I will mechanically fix as many of the joints as I can but still need to tape quite a few areas. Someone has suggested Ever build tape - the stuff that's used for jointing Dpm. It would be interesting to know what others on here have been using. Don't be shy! Cc
ProDave Posted October 25, 2016 Posted October 25, 2016 Use proper air tightness tape, sold for the job. It is not cheap, but you can reasonably expect it to stay stuck.
Crofter Posted October 25, 2016 Posted October 25, 2016 Is there anything wrong with just using a polythene vapour barrier?
Onoff Posted October 25, 2016 Posted October 25, 2016 I know that when I boarded my bathroom ceiling (where the new joists were pretty much bang on level), I attempted to use "proper" double sided membrane tape. It was so thick it threw the ceiling boards out where the VCL joined so I gave up and am relying on silver tape and good old mechanical compression! The tape I used was from TP. Took the far boards down in the picture and got rid of the (black) tape.
ProDave Posted October 25, 2016 Posted October 25, 2016 The "proper" air tightness tape I am talking about is very much like duct tape in it's dimensions and is single sided, but obviously has a much stronger adhesive that is expected to last a long time.
CC45 Posted January 22, 2017 Author Posted January 22, 2017 Resurrecting this post due to wanting some advice on my VCL. The attached picture shows upstairs - celotex as insulation, green VCL & the 'Tony tray' from the room below. I'm taping all the joins when two strips of plastic overlap; horizontal battens to go on top yet - to give a services cavity. My query is this - should I also tape the 'Tony tray' to the insulation? I intend to tape the plastic to the floor (Siga tape used throughout) - so I'm not too sure taping the 'Tony tray' is necessary but I'd welcome you thoughts. Cheers CC
ProDave Posted January 22, 2017 Posted January 22, 2017 I am doing much the same, but do not tape the VCL to the floor, cut it a bit shorter, and tape the VCL to the tony tray. You can save quite a bit of material, the VCL only needs to come just below the top of the tony tray, say 100mm overlap. Why horizontal battens for the service void? that will make fitting the PB a bit harder won't it? I am having vertical service void battens following each wall stud.
CC45 Posted January 22, 2017 Author Posted January 22, 2017 Hi Dave, Going to bring green vcl down to virtually the floor (timber frame errectors were a but careless in a few places and put holes in the tony tray material, I'm happy to use a bit more vcl to get peace of mind. Horizontal battens to minimise cold bridging, no other reason. Like you I'm doing the lot on our build so I'm willing to spend a bit more time on the boarding. Cant wait for that day to arrive to be honest, progress is slow when you're on your own and have a full time job as well. Cheers for replying.
Declan52 Posted January 22, 2017 Posted January 22, 2017 Don't forget to put a fold in it before you attach it to the floor. It will allow the floor and roof to shrink and expand and not rip the vcl. 1
Onoff Posted January 22, 2017 Posted January 22, 2017 2 minutes ago, Declan52 said: Don't forget to put a fold in it before you attach it to the floor. It will allow the floor and roof to shrink and expand and not rip the vcl. Bu**er!
Nickfromwales Posted January 22, 2017 Posted January 22, 2017 A, er, friend of mine wanted to know what a Tony Tray is? Thought id ask, being a good mate and that
TerryE Posted January 22, 2017 Posted January 22, 2017 8 minutes ago, Nickfromwales said: A, er, friend of mine wanted to know what a Tony Tray is? Thought id ask, being a good mate and that Gotcha!!! Not paying attention! http://www.tonyshouse.readinguk.org/tony.htm Not sure Tony invented it, because this sort of wrap is pretty standard on timber constructions, though most block-built houses are just allowed to leak from what I see 1
Nickfromwales Posted January 22, 2017 Posted January 22, 2017 5 minutes ago, TerryE said: Gotcha!!! Not paying attention! http://www.tonyshouse.readinguk.org/tony.htm Not sure Tony invented it, because this sort of wrap is pretty standard on timber constructions, though most block-built houses are just allowed to leak from what I see Thanks. My mate says hi. 1
ProDave Posted January 23, 2017 Posted January 23, 2017 My builder thankfully incorporated a tony tray, before I had even heard of it, and I am sure they would not have referred to it as such. Another new build up here didn't and I watched slightly smug when I saw them taping the VCL around every single joist.
CC45 Posted January 23, 2017 Author Posted January 23, 2017 Our frame has been up nearly 2 years - not too sure it will shrink any more but the fold is a good idea. Thanks.
oranjeboom Posted January 23, 2017 Posted January 23, 2017 22 hours ago, Nickfromwales said: Thanks. My mate says hi. Thank your mate for raising this question...as I think one of my mates may have asked the very same question!!! 1
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