Green Building Forum - Blob & dob -- thermal images Tue, 19 Dec 2023 05:34:58 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145195#Comment_145195 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145195#Comment_145195 Mon, 07 May 2012 18:47:04 +0100 tony
Has anyone got any thermal imaging pictures of blobbed and dobbed walls in the winter or on windy days?]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145198#Comment_145198 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145198#Comment_145198 Mon, 07 May 2012 19:29:15 +0100 Paul_B
Although an attempt had been made at the top and bottom of the plasterboard to have a continous run of plaster it in practice had many voids, but worse still is at the sides no attempt had been made to seal in the air, one room simply allowed air to pass into the next. Then the soil pipe is not air tight or properly insulated so the air from room to room can be drawn up into the loft space to be replaced by cold air.

Our house uses metal studs for the partition walls, the studs have big holes and although some of the partitions are insulated with rockwool you can clearly see even after 10 years where draughts are an issue because of all the dirt / soot on the rockwool. Then you have all the cuts for pipework, electrical, etc making it easy for cold air to circulate and warm air to escape.

So I think you once wrote that the use of daub and dab with plasterboard is like living in a tent is pretty accurate, that or thinking a sieve is a good idea for boiling water.

Paul]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145222#Comment_145222 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145222#Comment_145222 Mon, 07 May 2012 23:09:20 +0100 GaryB Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145223#Comment_145223 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145223#Comment_145223 Mon, 07 May 2012 23:11:03 +0100 tony
Take some more please!!! If possible of some real dry linings.]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145225#Comment_145225 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=145225#Comment_145225 Mon, 07 May 2012 23:14:51 +0100 GaryB Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=155838#Comment_155838 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=155838#Comment_155838 Sat, 08 Sep 2012 14:44:48 +0100 ikimiki
Aside from waiting for this to arrive:
http://www.robhopeless.com/2012/09/thermal-imaging-phone-camera.html
http://www.rhworkshop.com/]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=155847#Comment_155847 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=155847#Comment_155847 Sat, 08 Sep 2012 17:31:35 +0100 tony Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205796#Comment_205796 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205796#Comment_205796 Sun, 20 Jul 2014 09:08:30 +0100 tony Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205797#Comment_205797 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205797#Comment_205797 Sun, 20 Jul 2014 09:10:48 +0100 tony
Anyone up for developing a solution to this problem?

All you are looking at here is a single row of plasterboard sheets standing up with all the masonry removed!]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205798#Comment_205798 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205798#Comment_205798 Sun, 20 Jul 2014 09:39:58 +0100 fostertom https://www.facebook.com/photo.php?v=807953379222467]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205799#Comment_205799 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205799#Comment_205799 Sun, 20 Jul 2014 10:14:40 +0100 Ed Davies Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205800#Comment_205800 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205800#Comment_205800 Sun, 20 Jul 2014 10:45:33 +0100 Mike George
Problems like this are common to many building practices

eg.

Loft Insulation incorrectly installed at eaves
Partial fill Cavity wall Insulation missing/not fixed adequately /not taped
Hit and miss retro filled cavities - due to poor assessment or poor filling or both

The codes of practice for all of these are there - and they work if done correctly - including so called blob and dob the problem lies with them not being done as specified.

On the subject of blob and dob - no one ever seems to mention that EWI adopts the same blob and dob practice for fixing the Insulation to the wall - why is this?]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205801#Comment_205801 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205801#Comment_205801 Sun, 20 Jul 2014 10:57:28 +0100 Joiner http://www.ebay.co.uk/itm/Irisys-IXS9004-Thermal-Imaging-Camera-ghost-hunting-education-/171390655774?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item27e7addd1e]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205802#Comment_205802 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205802#Comment_205802 Sun, 20 Jul 2014 11:04:19 +0100 Nick Parsons Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205803#Comment_205803 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205803#Comment_205803 Sun, 20 Jul 2014 11:12:01 +0100 fostertom Posted By: Ed Daviesare you saying tony's evidence is obvious nonsense?Not unless it's a CGI fake, like the plane video]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205804#Comment_205804 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205804#Comment_205804 Sun, 20 Jul 2014 11:16:20 +0100 SteamyTea Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205805#Comment_205805 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205805#Comment_205805 Sun, 20 Jul 2014 11:17:58 +0100 atomicbisf
Though the rest of the house is non-traditional I don't think there was a non traditional method at the time of making a fireproof and secure party wall so they switched back to masonry but still dry lined it for convenience. After Victorian terraced house nearby burnt down together with its neighbour due to deficient fire walls, I'm rather reassured to have this!

As for the blobbing, isn't there a case that methods that are inherently prone to shoddy short cuts should be prohibited? After all, once the plasterboard is up it will be very difficult to tell whether it has been done properly or not.

Ed]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205806#Comment_205806 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205806#Comment_205806 Sun, 20 Jul 2014 11:26:23 +0100 fostertom Posted By: Nick ParsonsEWI systems which do not use adhesive - too much scope for thermal by-passAFAIK air cavities don't necessarily mean thermal bypass. Thermal bypass is when an air cavity or passage allows a path between hot and cold zones, so convection currents arise which transfer heat, bypassing the insulation.

That's not the case with narrowish air layers, of similar width to those in multipane glass units, which lie transverse to the general direction of heat flow. In that orientation, air layers actually add to overall insulation, provided the cavity width is narrow enough to impede the establishment of convective 'cells'.

It's different if the cavities lie parallel with the general direction of heat flow, like the joints between EWI block edges. Such cavities provide a path direct between extremes of hot and cold, and even if only fag-paper width, there's strong convective urge, and a lot of frontal area, if you total up all the unfoamed EPS edge joints.

So it's actually advantageous to fix your EPS blocks by dot n dab rather than continuous bed. The resultant narrow air cavities add to overall insulation.

The only way such an air cavity might still act as a bypass, is if it's continuous over wide areas of the wall face. Different areas of the wall will be at different temperatures, so a continuous cavity might act as a path between hot and cold. So make sure each air cavity behind the EPS is no more than 1m2 (about 2 EWI blocks), dividing up by continuous ribbons of adhesive, with dots in between.]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205807#Comment_205807 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205807#Comment_205807 Sun, 20 Jul 2014 11:27:34 +0100 Ed Davies
1) Nobody I know of suggests that the aircraft cut through the steel structure. Quite the contrary, the steel cut through the aircraft atomizing the fuel - hence the immediate large fire/explosion. See the aircraft which crashed into the Pentagon (there's no room for doubt there) where large parts of the aircraft were shredded and just disappeared into the building.

2) The building the wing goes behind is obviously in the foreground - just look at the sizes of the windows - how he thinks, or thinks anybody who's viewing it would think, it's further away than the towers is beyond me. Apart from anything else, from that angle the building would have to be enormously high to be behind the towers.]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205809#Comment_205809 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205809#Comment_205809 Sun, 20 Jul 2014 11:34:04 +0100 fostertom
You're saying that the building sliced up the jet, not the jet sliced into the building? Remarkably clean slicing - why no rain of bits that didn't get through the slicer?]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205810#Comment_205810 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205810#Comment_205810 Sun, 20 Jul 2014 11:44:53 +0100 fostertom Posted By: SteamyTeathe death of over 3000 workers was a fake?Not at all - just a 'strategically worth it' Pearl Harbour re-run, to get America into a new war.

I too was sceptic/agnostic about 9/11 conspiracy theory, but not for a while now. Just like the notion that America's middle east wars were about oil hegemony, not freedom and democracy, took 10yrs to become "well, obviously" common wisdom.

Yes, this film may or may not itself be a fake, either by the guy who 'filmed' it and prob made lotsa money out of it, or by the CIA, or by the conspiracy theorists. Planes did hit the buildings, and 3000 were killed and lots more poisoned. It looks though like the whole thing was correographed, including the classic controlled demolitions by placed explosives - including the third tower which wasn't hit by anything.]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205811#Comment_205811 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205811#Comment_205811 Sun, 20 Jul 2014 12:05:00 +0100 Nick Parsons
Tony's suggestion is that it *was* 'prohibited' -or at least contrary to NHBC guidance - at the time it was built. The problem is that either no-one is looking, or they are not prepared, if they do spot 'blob and dob' to insist that it be ripped off.

And FT, I agree that it *may* not be an issue with EWI, particularly if you ''.....make sure each air cavity behind the EPS is no more than 1m2 (about 2 EWI blocks), dividing up by continuous ribbons of adhesive, with dots in between.'', but then in my view, that's not really dot and dab.

Nick]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205812#Comment_205812 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205812#Comment_205812 Sun, 20 Jul 2014 12:12:38 +0100 Ed Davies Posted By: fostertomHm, you may be right about the 'distant' building - but the right wing also goes 'behind' the corner of the target building for a moment - explanation?Looks like a compression artifact to me resulting from the low contrast between the bottom of the wing and facade of the building. As soon as there's enough wing there to not just be noise it pops up cleanly enough. Not sure if frames have been interpolated to allow the slow motion - might be an artifact of that as well/instead. Be interesting to see the original, though, ideally as separate frames.

You're saying that the building sliced up the jet, not the jet sliced into the building? Remarkably clean slicing - why no rain of bits that didn't get through the slicer?
I've seen the results of much lower speed aircraft accidents where there have been remarkably clean cuts made. Thin aluminium vs steel girders makes it seem reasonable to me. Maybe there was a rain of bits inside the facade. Bits too small to see on this video or obscured by the smoke. Other bits just stuck to steel girders, etc. This is just a short clip lasting a small number of seconds in real time (without the slow motion) so not enough time for bits to fall noticeably.]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205813#Comment_205813 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205813#Comment_205813 Sun, 20 Jul 2014 12:15:35 +0100 atomicbisf Posted By: fostertom
Posted By: SteamyTeathe death of over 3000 workers was a fake?
Not at all - just a 'strategically worth it' Pearl Harbour re-run, to get America into a new war.

I too was sceptic/agnostic about 9/11 conspiracy theory, but not for a while now. Just like the notion that America's middle east wars were about oil hegemony, not freedom and democracy, took 10yrs to become "well, obviously" common wisdom.

Yes, this film may or may not itself be a fake, either by the guy who 'filmed' it and prob made lotsa money out of it, or by the CIA, or by the conspiracy theorists. Planes did hit the buildings, and 3000 were killed and lots more poisoned. It looks though like the whole thing was correographed, including the classic controlled demolitions by placed explosives - including the third tower which wasn't hit by anything.

That certain interests benefited from the attack doesn't mean they were involved. Controlled demolition is simply too implausible given the number of charges that would be necessary, being installed in buildings that were in use. I think this story gained traction because some conspiracy theorists couldn't understand some basic physics, such as the windows blowing out below the zone of collapse due to air pressure produced by the collapse of the floors above. This superficially looked like demolition charges. Much like they couldn't or wouldn't understand that steel looses much of its strength at well below the temperature at which it melts and started wittering about the temperatures not being high enough.

Besides, if you're going to the trouble of crashing two planes into buildings, why is demolition necessary? And if the whole thing had been planned to facilitate the invasion of Iraq, surely it was a major flaw in the conspiracy to fail to make it appear the attack had anything to do with Iraq? The whole thing is wildly implausible.]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205814#Comment_205814 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205814#Comment_205814 Sun, 20 Jul 2014 12:34:41 +0100 fostertom Posted By: atomicbisfsurely it was a major flaw in the conspiracy to fail to make it appear the attack had anything to do with Iraq?Any connection to Iraq proved to be an unnecessary detail.
Posted By: atomicbisfThat certain interests benefited from the attack doesn't mean they were involved
I might say "Just because I'm paranoid doesn't mean they're not watching me"!
Posted By: atomicbisfwindows blowing ... looked like demolition charges
There were sequential sets of flashes down the building. Steel showed signs of v high temp not possible from burning fuel.]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205815#Comment_205815 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205815#Comment_205815 Sun, 20 Jul 2014 12:57:08 +0100 marktime
/sarcasm alert/]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205816#Comment_205816 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205816#Comment_205816 Sun, 20 Jul 2014 13:18:34 +0100 fostertom
/alterness alert/]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205820#Comment_205820 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205820#Comment_205820 Sun, 20 Jul 2014 18:26:39 +0100 Simon Still
Woah there. That's a very different assertion - many of the banners at the anti-war protests before the invasion of Iraq suggest that was a widely held belief before the first bombs fell.

9/11 being a conspiracy is a very different thing.]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205821#Comment_205821 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205821#Comment_205821 Sun, 20 Jul 2014 18:57:36 +0100 fostertom
By 10yrs later, Iraq/oil was universally accepted - it crept in almost unacknowledged. Likewise it took me about that long to get what 9/11 was created for (or possibly, it was just seized upon). Only difference is that 9/11 is not yet universally taken as "obviously", as Iraq/oil is.

I wonder why not - both are equally gross, cynical, catastrophic, well within military/industrial complex's capability - and only a belief in CIA decency would classify either as inconceivable.

It's well documented and almost officially acknowledged that both British and US intelligence knew that Pearl Harbor was imminent, so all the best ships were out at sea. In fact Britain and US deliberately provoked Japan to strike the first blow. It served to get the US public to accept entry into WW2, which all could see was about to be lost without their intervention, and US could see that she'd emerge from holding all the cards.

So what's different?]]> Blob & dob -- thermal images http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205822#Comment_205822 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9040&Focus=205822#Comment_205822 Sun, 20 Jul 2014 19:00:28 +0100 SteamyTea
'Never attribute to malice that which is adequately explained by stupidity.']]>