eandg Posted June 12, 2023 Posted June 12, 2023 On 12/06/2023 at 09:02, Iceverge said: You'll need to seal them for the test. Either cap them or put a plastic bag over the top and seal with tape temporarily. You're unlightly to cause any damage IMO. Expand Our airtightness test will be done after sheeting - not concerned in terms of pass/fail as we've been fairly meticulous (all windows compribanded, airtight membrane seal and then airtight taped from frame to membrane, grommets on all service penetrations etc) but hadn't thought about AAVs (or the soil vent pipe which goes to the atmosphere), which will be boxed in. Is there much of an issue not having these sealed off and/or how do you go about doing that after the fact?
Nickfromwales Posted June 12, 2023 Posted June 12, 2023 On 12/06/2023 at 09:52, eandg said: which will be boxed in Expand These need to remain accessible?
Nickfromwales Posted June 12, 2023 Posted June 12, 2023 On 12/06/2023 at 07:23, Thorfun said: Qq on AAVs (maybe @Nickfromwales is best to answer?). Do I really need to remove them and cap the pipes for the Airtightness test? Aren’t they valves? so aren’t they closed until air is required? How do they behave when the internal air pressure of the house is reduced? Do they stay shut or open up as the air pressure in the pipe is higher than in the house once it’s depressurised? Expand If it was my house, I'd cap everything and go to the nth degree to get the actual ACH of the fabric. What is the point in doing all of the work up to that point, if a slightly faulty / leaky valve then gives you a shite ACH score!?!?! 1
Thorfun Posted June 12, 2023 Author Posted June 12, 2023 On 12/06/2023 at 11:32, Nickfromwales said: If it was my house, I'd cap everything and go to the nth degree to get the actual ACH of the fabric. What is the point in doing all of the work up to that point, if a slightly faulty / leaky valve then gives you a shite ACH score!?!?! Expand yep. it's a very fair point thank you. consider it done! 1
eandg Posted June 12, 2023 Posted June 12, 2023 On 12/06/2023 at 11:30, Nickfromwales said: These need to remain accessible? Expand They've not been boxed in yet but presumed they would be - plumber had previously said about access for rodding eyes and the like so we'll catch that when finishing sheeting this week. Cheers. 1
Thorfun Posted June 12, 2023 Author Posted June 12, 2023 On 12/06/2023 at 11:30, Nickfromwales said: These need to remain accessible? Expand On 12/06/2023 at 12:35, eandg said: They've not been boxed in yet but presumed they would be - plumber had previously said about access for rodding eyes and the like so we'll catch that when finishing sheeting this week. Cheers. Expand i think @Nickfromwales was talking about the AAVs needing to be accessible rather than the soil pipe? could this possibly be a crossed-wires situation? 1
eandg Posted June 12, 2023 Posted June 12, 2023 On 12/06/2023 at 12:54, Thorfun said: i think @Nickfromwales was talking about the AAVs needing to be accessible rather than the soil pipe? could this possibly be a crossed-wires situation? Expand I think he is - and it's a good reminder before we finishing sheeting not to box anything in that we need access to but can't get to. (Think AAVs are to be hidden in cupboards, rather than sheeted, anyway but shall confirm with the principal interior designer). 2
Nickfromwales Posted June 12, 2023 Posted June 12, 2023 On 12/06/2023 at 12:54, Thorfun said: i think @Nickfromwales was talking about the AAVs needing to be accessible rather than the soil pipe? could this possibly be a crossed-wires situation? Expand On 12/06/2023 at 12:57, eandg said: I think he is - and it's a good reminder before we finishing sheeting not to box anything in that we need access to but can't get to. (Think AAVs are to be hidden in cupboards, rather than sheeted, anyway but shall confirm with the principal interior designer). Expand Cheer for the clarity. Rodding points not so much of a worry, and usually just a tick-box for BCO's. AAV's defo need access or locating strategically Good that you have that in hand already.
Thorfun Posted June 14, 2023 Author Posted June 14, 2023 and the results are in.............. ........0.98ACH! i'm very happy and hit my target of 1ACH. could we have got it lower? maybe, but we calculated the internal volume at just over 1400m3 over 4 stories (basement, ground floor, first floor and loft) and it's got some interesting junctions between sections of the buildings so i think to get in below 1ACH is a job well done. 8
SteamyTea Posted June 14, 2023 Posted June 14, 2023 On 14/06/2023 at 14:27, Thorfun said: .0.98ACH Expand Well done. Will keep the pollen out and my fag smoke in. Be like a pub in the 90s. 1
Thorfun Posted June 14, 2023 Author Posted June 14, 2023 On 14/06/2023 at 14:42, SteamyTea said: Well done. Will keep the pollen out and my fag smoke in. Be like a pub in the 90s. Expand just without the sticky floors, unlike @pocster's place. 1
Jenki Posted June 14, 2023 Posted June 14, 2023 On 14/06/2023 at 14:27, Thorfun said: and the results are in.............. ........0.98ACH! i'm very happy and hit my target of 1ACH. could we have got it lower? maybe, but we calculated the internal volume at just over 1400m3 over 4 stories (basement, ground floor, first floor and loft) and it's got some interesting junctions between sections of the buildings so i think to get in below 1ACH is a job well done. Expand Great result, the place is huge, so good effort 👍 1
SteamyTea Posted June 14, 2023 Posted June 14, 2023 On 14/06/2023 at 14:45, Thorfun said: just without the sticky floors, unlike @pocster's place. Expand Eeewwww
saveasteading Posted June 14, 2023 Posted June 14, 2023 A bco once told me that air pressure tests for very large volumes ( esp high) are not accurate. I think that the fans just struggled to keep the space full or the air was buffeting around. That was in the first year of apt, so presumably resolved now.
gravelrash Posted June 14, 2023 Posted June 14, 2023 On 14/06/2023 at 15:19, saveasteading said: A bco once told me that air pressure tests for very large volumes ( esp high) are not accurate. I think that the fans just struggled to keep the space full or the air was buffeting around. That was in the first year of apt, so presumably resolved now. Expand Why dont you just dump in his toilet and tell him its chocolate, lol...he was so happy with the result. 1
saveasteading Posted June 14, 2023 Posted June 14, 2023 I'm just saying in case it alters any real life designs. I'm not questioning the result but there is always more to learn. 1 is very good though, well done. Last time I supervised one they wanted the upper floors closed off by shutting doors. No suggestion of that with your multiple floors? 1
Thorfun Posted June 14, 2023 Author Posted June 14, 2023 On 14/06/2023 at 15:19, saveasteading said: A bco once told me that air pressure tests for very large volumes ( esp high) are not accurate. I think that the fans just struggled to keep the space full or the air was buffeting around. That was in the first year of apt, so presumably resolved now. Expand On 14/06/2023 at 15:23, gravelrash said: Why dont you just dump in his toilet and tell him its chocolate, lol...he was so happy with the result. Expand still am happy despite what @saveasteading says. he did finish with 'presumably resolved now' so I'm sticking with that. the guy seemed to have the correct equipment and we could definitely feel a few areas where air was coming in that we resolved there and then.
Pocster Posted June 14, 2023 Posted June 14, 2023 On 14/06/2023 at 14:27, Thorfun said: and the results are in.............. ........0.98ACH! i'm very happy and hit my target of 1ACH. could we have got it lower? maybe, but we calculated the internal volume at just over 1400m3 over 4 stories (basement, ground floor, first floor and loft) and it's got some interesting junctions between sections of the buildings so i think to get in below 1ACH is a job well done. Expand I’m gonna beat that now ! 1
Thorfun Posted June 14, 2023 Author Posted June 14, 2023 On 14/06/2023 at 15:31, saveasteading said: I'm just saying in case it alters any real life designs. I'm not questioning the result but there is always more to learn. 1 is very good though, well done. Last time I supervised one they wanted the upper floors closed off by shutting doors. No suggestion of that with your multiple floors? Expand none at all. tbh, it would be impossible as we haven't got any doors! 🤣 2
Pocster Posted June 14, 2023 Posted June 14, 2023 On 14/06/2023 at 15:33, Thorfun said: none at all. tbh, it would be impossible as we haven't got any doors! 🤣 Expand I’ve got all my doors on - but when he’s not looking going to tape / foam fill them shut
Thorfun Posted June 14, 2023 Author Posted June 14, 2023 On 14/06/2023 at 15:34, pocster said: I’ve got all my doors on - but when he’s not looking going to tape / foam fill them shut Expand with SWMBO still inside?
Pocster Posted June 14, 2023 Posted June 14, 2023 On 14/06/2023 at 15:35, Thorfun said: with SWMBO still inside? Expand No ! She will create depression ( of air ) 1
SteamyTea Posted June 14, 2023 Posted June 14, 2023 (edited) On 14/06/2023 at 15:33, pocster said: I’m gonna beat that now ! Expand Remember that you can beat an egg, but not a w.......elshman Not sure if it is better in shut up room. Edited June 14, 2023 by Nickfromwales I need no reason, as I am the Messiah.
Pocster Posted June 14, 2023 Posted June 14, 2023 (edited) On 14/06/2023 at 16:03, SteamyTea said: Remember that you can beat an egg, but not a w....... Not sure if it is better in shut up room. Expand Bad language will not be tolerated ! Mods ! Edited June 14, 2023 by Nickfromwales See above. ;) 1
SteamyTea Posted June 14, 2023 Posted June 14, 2023 On 14/06/2023 at 16:08, pocster said: Bad language will not be tolerated ! Mods ! Expand Your ten k didn't do it then. 1
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