nod Posted February 14, 2021 Share Posted February 14, 2021 Pet hate I can’t see the point in making a house airtight and having Dozens of these things all over the house I pointed this out to BC While he agreed he did say that I must include them We hate the look of them and they are not airtight when closed We visited a friend who has almost finished his third self build The last one being 20 years ago While this one hasn’t been signed off yet He hasn’t any trickle vent for the above reasons Or MVRH Has anyone else omitted trickle vents? Link to comment Share on other sites More sharing options...
HerbJ Posted February 14, 2021 Share Posted February 14, 2021 MVHR and no trickle vents. 1 Link to comment Share on other sites More sharing options...
ProDave Posted February 14, 2021 Share Posted February 14, 2021 No trickle vents, air tight house and MVHR. do you have something against mvhr? Your friend might have issues with no trickle vents and no mvhr, BC might not sign that off. My pet gripe is my three roof windows all have trickle vents that are never opened because of the ridiculous situation you have to pay a LOT MORE to get a roof window without a trickle vent. I object to paying more for them to NOT fit something. Link to comment Share on other sites More sharing options...
PeterW Posted February 14, 2021 Share Posted February 14, 2021 10 minutes ago, nod said: Has anyone else omitted trickle vents? Yes - but you have to install alternate ventilation so either MVHR or Single room units. MVHR every time for me now. Link to comment Share on other sites More sharing options...
nod Posted February 14, 2021 Author Share Posted February 14, 2021 (edited) 16 minutes ago, ProDave said: No trickle vents, air tight house and MVHR. do you have something against mvhr? Your friend might have issues with no trickle vents and no mvhr, BC might not sign that off. My pet gripe is my three roof windows all have trickle vents that are never opened because of the ridiculous situation you have to pay a LOT MORE to get a roof window without a trickle vent. I object to paying more for them to NOT fit something. Nothing against MVR Just thought it my might be a way around trickle vents Thought I’d just get in first Perhaps I should have stated Bo other means of ventilation I think the question is Was my original BC incorrect in stating we must have trickle vent to ALL windows to comply with Building Regs Where in sat at the moment I’m looking at 16 trickle vents Excessive Edited February 14, 2021 by nod Link to comment Share on other sites More sharing options...
ProDave Posted February 14, 2021 Share Posted February 14, 2021 Yes BC is wrong to insist on trickle vents if you have mvhr. On my recent inspection by BC they were happy to see the MVHR system and tick the box as we have no trickle vents (other than those in the roof windows) Link to comment Share on other sites More sharing options...
nod Posted February 14, 2021 Author Share Posted February 14, 2021 I’ll have to see if BC picks up that he’s no trickle vents Link to comment Share on other sites More sharing options...
ProDave Posted February 14, 2021 Share Posted February 14, 2021 11 minutes ago, nod said: I’ll have to see if BC picks up that he’s no trickle vents A guy near here planned on no trickle vents and central extraction only and when BC saw his air test result said it was "too good" he either had to fit trickle vents or full mvhr. He went for full mvhr. Link to comment Share on other sites More sharing options...
Mr Punter Posted February 14, 2021 Share Posted February 14, 2021 The likes of Velfac and IdealCombi do trickle vents that are not visible at all outside, and quite neat inside. Link to comment Share on other sites More sharing options...
SimonD Posted February 14, 2021 Share Posted February 14, 2021 (edited) You don't need trickle vents, that's just the default assumption. I don't have trickle vents as there's no way I'm putting them in expensive 3g windows especially when some vents would sit 3.6 meters above floor level. You can simply install natural background wall vents and/or alternatively passive stack. It's all in the building regs. I got my acoustic cntrollable ones directly from Rytons - https://www.vents.co.uk/pdf/BROCH_Rytons_Background_Ventilators.pdf And yes, I'm not into MVHR as after my research I decided against it. Edited February 14, 2021 by SimonD 2 Link to comment Share on other sites More sharing options...
nod Posted February 14, 2021 Author Share Posted February 14, 2021 18 minutes ago, SimonD said: You don't need trickle vents, that's just the default assumption. I don't have trickle vents as there's no way I'm putting them in expensive 3g windows especially when some vents would sit 3.6 meters above floor level. You can simply install natural background wall vents and/or alternatively passive stack. It's all in the building regs. I got my acoustic cntrollable ones directly from Rytons - https://www.vents.co.uk/pdf/BROCH_Rytons_Background_Ventilators.pdf And yes, I'm not into MVHR as after my research I decided against it. We were in a similar position Spent 20k (supply only) on sash windows and spoiled them with trickle vents We also researched MVR and decided against it My wife is pretty set against it for the next one So isn’t looking likely for that one either Thanks for your reply 1 Link to comment Share on other sites More sharing options...
Oz07 Posted February 14, 2021 Share Posted February 14, 2021 My old window guy stuck the trickles on his new place, took them off after sign off. Link to comment Share on other sites More sharing options...
craig Posted February 14, 2021 Share Posted February 14, 2021 (edited) The regulations do not “insist” on trickle vents in windows, what it refers to is controllable background ventilation and talks about trickle vents as that’s the most common method. If you have for example “night ventilation” within the window, which is common in European tilt and turn windows. You can argue your case. You can also argue your case on how that background ventilation is occurring. Reference Scottish Building Regulations https://www.gov.scot/publications/building-standards-technical-handbook-2019-domestic/3-environment/3-14-ventilation/ Reference English Building Regulations Approved Document F https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/468871/ADF_LOCKED.pdf @Oz07 happens more often than you think. They are never checked, they are eye balled. Edited February 14, 2021 by craig Link to comment Share on other sites More sharing options...
newhome Posted February 14, 2021 Share Posted February 14, 2021 12 minutes ago, craig said: @Oz07 happens more often than you think. They are never checked, they are eye balled. I have MVHR everywhere but the sun room / extension that was added later. Building Control picked up on it and said that I had to put trickle vents in 2 of the windows unless the windows had night ventilation (they didn't). I argued that the vents would be closed 24 x 7 and that there were 2 set of internal double doors into the room so there was a ton of ventilation already. Didn't matter I had to have them retrofitted. In the end I could have just stuck them on because they never came out to check - they just wanted a photo. I have never opened the trickle vents in 5 years. Link to comment Share on other sites More sharing options...
SuperJohnG Posted February 14, 2021 Share Posted February 14, 2021 13 hours ago, ProDave said: My pet gripe is my three roof windows all have trickle vents that are never opened because of the ridiculous situation you have to pay a LOT MORE to get a roof window without a trickle vent. I object to paying more for them to NOT fit something. Right at this point it the moment with Fakro....what a joke. For reference for others though, easy to block on Fakro apparently but not possible on Velix I believe as vent is in the handle...thats what the sales guy told me anyways. ? Link to comment Share on other sites More sharing options...
Big Jimbo Posted February 15, 2021 Share Posted February 15, 2021 I am another who hates trickle vents. Expensive windows with sodding holes in. I found an artical several years ago stating that trickle vents were to ensure that gas, etc could escape from a house. I also demonstrated by way of a mates couple of pages of complicated Maths , how many times the air would be changed by people going in and out to work, the bins etc. The BC guy thought trickle vents were also rubbish, and looked crap. He was happy to accept all my justification for not fitting them, and signed me off. 1 Link to comment Share on other sites More sharing options...
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