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#1
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Cracks after downstairs work.
Hi All,
Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... |
#2
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Cracks after downstairs work.
Adam wrote:
Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Almost certainly Its shoddy but that's the way it goes. The should have put the supporting beam in tension before they paced it up Should I investigate further? watch and wait. Take photos alongside ruler and hit them for the redecoration bill. Or the remedial work bill if it gets worse. Cheers - Adam... |
#3
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Cracks after downstairs work.
On Tue, 06 Dec 2011 22:38:39 +0000, The Natural Philosopher wrote:
watch and wait. Take photos alongside ruler and hit them for the redecoration bill. Or the remedial work bill if it gets worse. But tell them(*) now, in writing and keep a copy, that there is damage occuring in your flat that has started after their works. (*)Tenant, landlord, owner/occupier etc. -- Cheers Dave. |
#4
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Cracks after downstairs work.
In article o.uk,
"Dave Liquorice" writes: On Tue, 06 Dec 2011 22:38:39 +0000, The Natural Philosopher wrote: watch and wait. Take photos alongside ruler and hit them for the redecoration bill. Or the remedial work bill if it gets worse. But tell them(*) now, in writing and keep a copy, that there is damage occuring in your flat that has started after their works. and ask for details of their insurers, even if you don't currently intend to claim. (*)Tenant, landlord, owner/occupier etc. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#5
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Cracks after downstairs work.
I would, funnily enough when my two neighbours removed their walls the roof
was the problem,it went up a bit and all the ridge tiles cement fell off! Brian -- Brian Gaff - Note:- In order to reduce spam, any email without 'Brian Gaff' in the display name may be lost. Blind user, so no pictures please! "Adam" wrote in message ... Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... |
#6
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Cracks after downstairs work.
On Dec 6, 8:22*pm, Adam wrote:
Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... The way to check out cracks is to cement a strip of glass across the crack. If it breaks, it is obviously still moving. You want to do all the things mentioned by others. They should also have put in a "cill" to their opening to avoid the stress concentrations on the wall below their opening. Especially on an older building which may have suspect foundations/footings. It will probably be OK and the cracks can just be fixed. The lintel only supports the triangle of masonary above it. Longspan steel lintels are supposed to have a temporary centre support before they are loaded up. Limits the deflection under load. Removed when the cement has set. I expect they neglected to do this. |
#7
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Cracks after downstairs work.
On Dec 7, 10:12*am, harry wrote:
On Dec 6, 8:22*pm, Adam wrote: Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... The way to check out cracks is to cement a strip of glass across the crack. If it breaks, it is obviously still moving. You want to do all the things mentioned by others. They should also have put in a "cill" *to their opening to avoid the stress concentrations on the wall below their opening. *Especially on an older building which may have suspect foundations/footings. It will probably be OK and the cracks can just be fixed. The lintel only supports the triangle of masonary above it. Longspan steel lintels are supposed to have a temporary centre support before they are loaded up. *Limits the deflection under load. Removed when the cement has set. I expect they neglected to do this. Might be worth a call to buildiing control to be sure they have checked the work. Does the party wall act apply in cases like this? I am reminded what my wife told me about the some of the blocks of flats in Bucharest during the communist era. Cheauchescu demanded that all the ground floors be made 'open plan' so that communal meals could be served there. At the next earthquake the blocks fell down. Robert |
#8
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Cracks after downstairs work.
harry wrote:
On Dec 6, 8:22 pm, Adam wrote: Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... The way to check out cracks is to cement a strip of glass across the crack. If it breaks, it is obviously still moving. You want to do all the things mentioned by others. They should also have put in a "cill" to their opening to avoid the stress concentrations on the wall below their opening. Especially on an older building which may have suspect foundations/footings. It will probably be OK and the cracks can just be fixed. The lintel only supports the triangle of masonary above it. Longspan steel lintels are supposed to have a temporary centre support before they are loaded up. Limits the deflection under load. Removed when the cement has set. I expect they neglected to do this. It occurs to e that if you are prepared to spend a couple of hundred quid as additional insurance, an inspection by a structural engineer would be worth getting. Their reports are generally held to be unbiassed and gospel true in disputes between insurers builders and homeowners. I've used some in the past and they are a rare thing in these times, people who know what they are doing, are very well qualified, are practical, speak in a simple language and may be trusted, and whose opinion is worth more than they charge. |
#9
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Cracks after downstairs work.
On Dec 7, 12:29 pm, The Natural Philosopher
wrote: I've used some in the past and they are a rare thing in these times, people who know what they are doing, are very well qualified, are practical, speak in a simple language and may be trusted, and whose opinion is worth more than they charge. any relation? :))))))) Jim K |
#10
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Cracks after downstairs work.
On Dec 7, 11:05*am, RobertL wrote:
On Dec 7, 10:12*am, harry wrote: On Dec 6, 8:22*pm, Adam wrote: Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... The way to check out cracks is to cement a strip of glass across the crack. If it breaks, it is obviously still moving. You want to do all the things mentioned by others. They should also have put in a "cill" *to their opening to avoid the stress concentrations on the wall below their opening. *Especially on an older building which may have suspect foundations/footings. It will probably be OK and the cracks can just be fixed. The lintel only supports the triangle of masonary above it. Longspan steel lintels are supposed to have a temporary centre support before they are loaded up. *Limits the deflection under load. Removed when the cement has set. I expect they neglected to do this. Might be worth a call to buildiing control to be sure they have checked the work. *Does the party wall act apply in cases like this? I am reminded what my wife told me about the some of the blocks of flats in Bucharest during the communist era. * Cheauchescu demanded that all the ground floors be made 'open plan' so that communal meals could be served there. * At the next earthquake the blocks fell down. Robert- Hide quoted text - - Show quoted text - You can have a "party floor" under the Party Wall Act. See http://www.communities.gov.uk/docume...pdf/133214.pdf (diagram 5) I'd guess that if the flat below is changing the way in which the floor is supported, by inserting a steel, the the PWA would apply, and a PW notice should have been served. Cheers Richard |
#11
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Cracks after downstairs work.
On Dec 7, 12:29*pm, The Natural Philosopher
wrote: harry wrote: On Dec 6, 8:22 pm, Adam wrote: Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... The way to check out cracks is to cement a strip of glass across the crack. If it breaks, it is obviously still moving. You want to do all the things mentioned by others. They should also have put in a "cill" *to their opening to avoid the stress concentrations on the wall below their opening. *Especially on an older building which may have suspect foundations/footings. It will probably be OK and the cracks can just be fixed. The lintel only supports the triangle of masonary above it. Longspan steel lintels are supposed to have a temporary centre support before they are loaded up. *Limits the deflection under load. Removed when the cement has set. I expect they neglected to do this. It occurs to e that if you are prepared to spend a couple of hundred quid as additional insurance, an inspection by a structural engineer would be worth getting. Their reports are generally held to be unbiassed and gospel true in disputes between insurers builders and homeowners. I've used some in the past and they are a rare thing in these times, people who know what they are doing, are very well qualified, are practical, speak in a simple language and may be trusted, and whose opinion is worth more than they charge.- I agree 100% with your last para. Another advantage of going to a struct.eng. is that he will contact building control himself. That way, if there is any aggro because BC did not approve the change then the OP is slightly distanced from teh strom: "i employed a Struct eng to assess the damage in my flat - I didn'tshop you to BC". The absence of a party wall agreement (or even a PW notice) suggests they have not being doing everything by the book and it is possible that BC are completely in the dark about it all. Robert |
#12
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Cracks after downstairs work.
On Wed, 7 Dec 2011 00:29:28 +0000 (UTC), Andrew Gabriel wrote:
But tell them(*) now, in writing and keep a copy, that there is damage occuring in your flat that has started after their works. and ask for details of their insurers, even if you don't currently intend to claim. Good one, they might change insurers(*) and the new ones wouldn't be interested in "pre-existing" problems. (*)Possibly completly innocently to get a better deal. -- Cheers Dave. |
#13
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Cracks after downstairs work.
Exactly what is the crack like?
IE, is it a triangle due to a triangle above the lintel dropping? On a house with a good thickness of raft not much matters (not much will move). Even if they screw it up only the triangle will drop - and then stop, because there is a lintel beneath it :-) On a house with strip foundations, internal walls can have interesting foundations and require piers to be poured with even extra steel columns added. This is not a trivial step that can be omitted. The bearing capability of the ground is important re size & depth of the column pads. The lintel should be centre supported because the defacto rule is loads are calculated to be distributed and not point with lintels. The lintel should be very well packed, set on suitable padstones (poured, engineering brick) to spread the loading. If DIY without BC involvement only a fool would not over-engineer for the worst case, ie, if you find a strip foundation or thin raft you would wide and deep pour, column & beam. Structural engineers are indeed people you can build upon :-) |
#14
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Cracks after downstairs work.
"js.b1" wrote in message ... Exactly what is the crack like? IE, is it a triangle due to a triangle above the lintel dropping? On a house with a good thickness of raft not much matters (not much will move). Even if they screw it up only the triangle will drop - and then stop, because there is a lintel beneath it :-) I'm absolutely convinced that our windowframes support the lintels which support the brickwork. Bloody cowboys. On a house with strip foundations, internal walls can have interesting foundations and require piers to be poured with even extra steel columns added. This is not a trivial step that can be omitted. The bearing capability of the ground is important re size & depth of the column pads. The lintel should be centre supported because the defacto rule is loads are calculated to be distributed and not point with lintels. The lintel should be very well packed, set on suitable padstones (poured, engineering brick) to spread the loading. If DIY without BC involvement only a fool would not over-engineer for the worst case, ie, if you find a strip foundation or thin raft you would wide and deep pour, column & beam. Structural engineers are indeed people you can build upon :-) |
#15
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Cracks after downstairs work.
brass monkey wrote:
I'm absolutely convinced that our windowframes support the lintels which support the brickwork. Yer, they discovered that in my place when I had the windows replaced: http://pics.mdfs.net/2005/11/051125.htm JGH |
#16
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Cracks after downstairs work.
On Dec 7, 1:44*pm, geraldthehamster wrote:
On Dec 7, 11:05*am, RobertL wrote: On Dec 7, 10:12*am, harry wrote: On Dec 6, 8:22*pm, Adam wrote: Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... The way to check out cracks is to cement a strip of glass across the crack. If it breaks, it is obviously still moving. You want to do all the things mentioned by others. They should also have put in a "cill" *to their opening to avoid the stress concentrations on the wall below their opening. *Especially on an older building which may have suspect foundations/footings. It will probably be OK and the cracks can just be fixed. The lintel only supports the triangle of masonary above it. Longspan steel lintels are supposed to have a temporary centre support before they are loaded up. *Limits the deflection under load. Removed when the cement has set. I expect they neglected to do this. Might be worth a call to buildiing control to be sure they have checked the work. *Does the party wall act apply in cases like this? I am reminded what my wife told me about the some of the blocks of flats in Bucharest during the communist era. * Cheauchescu demanded that all the ground floors be made 'open plan' so that communal meals could be served there. * At the next earthquake the blocks fell down. Robert- Hide quoted text - - Show quoted text - You can have a "party floor" under the Party Wall Act. See http://www.communities.gov.uk/docume...ding/pdf/13321... (diagram 5) I'd guess that if the flat below is changing the way in which the floor is supported, by inserting a steel, the the PWA would apply, and a PW notice should have been served. Good information - thanks - but the Party Wall Act does not appear to apply in Scotland... Cheers - Adam... |
#17
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Cracks after downstairs work.
First up, thanks to all who have responded. We're prepping a letter
now, and have a friend who is a structural engineer, so will be employing his services. We want to maintain cordial relations (although it was us who, slightly accidentally, dobbed them into building control - they had started the work before the warrant was awarded, apparently, although they had applied for one [so they say]), and they are cordial at the moment. On the other hand, we don't want to be responsible for expensive repairs because of some builder's cack- handedness. On Dec 7, 11:24*pm, "js.b1" wrote: Exactly what is the crack like? IE, is it a triangle due to a triangle above the lintel dropping? There are vertical cracks along the junction between the plaster on the internal (brick, I think) wall and the lath-and-plaster which sits on the gable-end wall (stone). There are cracks that are slanted about 20-30 degrees off vertical running from the top corner of a door that is about 2.5 metres from the gable-end. On the other side of the wall there is a stud-wall and door perpendicular to the wall in question - there are vertical craks running up both of the corners the door frame and stud wall make with the older wall, as well as, again, vertical cracks in the corner formed by the gable-end wall (hope that makes sense). On a house with a good thickness of raft not much matters (not much will move). Even if they screw it up only the triangle will drop - and then stop, because there is a lintel beneath it :-) House is an Edinburgh 'colony' - build around 1870ish, substantial (70cm) thick stone outside walls and pretty substantial (roughly 170mm by 70mm) joists holding the floors. The wall that the've taken part of out (they're leaving in some of it, including a door) is (AFAIK) made of (very low-quality, based on what we've seen elsewhere) bricks and is about 150mm thick. It runs along the centre (almost) of the property and supports the floor joists in the middle. On a house with strip foundations, internal walls can have interesting foundations and require piers to be poured with even extra steel columns added. This is not a trivial step that can be omitted. The bearing capability of the ground is important re size & depth of the column pads. The lintel should be centre supported because the defacto rule is loads are calculated to be distributed and not point with lintels. The lintel should be very well packed, set on suitable padstones (poured, engineering brick) to spread the loading. If DIY without BC involvement only a fool would not over-engineer for the worst case, ie, if you find a strip foundation or thin raft you would wide and deep pour, column & beam. Structural engineers are indeed people you can build upon :-) Who can tell? As mentioned earlier, we accidentally dobbed them in to building control - that is, saw the work going on and looked online for a warrant, when I couldn't see one, I called BC - who promptly said they would pop round and ask. When my wife later spoke to the owner, she said that they had applied, and the builder had said it was OK to start before it was actually granted. Sounds like getting in a structural engineer and getting a (nice) letter off is the way to go. Hopefully it will prove to be the least worst case - a little settling. Cheers all - Adam... |
#18
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Cracks after downstairs work.
On Dec 7, 1:56*pm, RobertL wrote:
On Dec 7, 12:29*pm, The Natural Philosopher wrote: harry wrote: On Dec 6, 8:22 pm, Adam wrote: Hi All, Just a quick bit of advice, please. The flat underneath us has taken out a part of what I think is a load- bearing wall - they've put in a RSJ. Subsequent to that work, we have several cracks (1mm, perhaps 2mm wide) in the plaster of the corresponding wall in our place. These appear to be stable - we took photos when they first appeared and have compared around 1 and 2 weeks later and they appear the same. I'm assuming that it was just a little settling as they got the RSJ in. Should I investigate further? Cheers - Adam... The way to check out cracks is to cement a strip of glass across the crack. If it breaks, it is obviously still moving. You want to do all the things mentioned by others. They should also have put in a "cill" *to their opening to avoid the stress concentrations on the wall below their opening. *Especially on an older building which may have suspect foundations/footings. It will probably be OK and the cracks can just be fixed. The lintel only supports the triangle of masonary above it. Longspan steel lintels are supposed to have a temporary centre support before they are loaded up. *Limits the deflection under load. Removed when the cement has set. I expect they neglected to do this. It occurs to e that if you are prepared to spend a couple of hundred quid as additional insurance, an inspection by a structural engineer would be worth getting. Their reports are generally held to be unbiassed and gospel true in disputes between insurers builders and homeowners. I've used some in the past and they are a rare thing in these times, people who know what they are doing, are very well qualified, are practical, speak in a simple language and may be trusted, and whose opinion is worth more than they charge.- I agree 100% with your last para. Another *advantage of going to a struct.eng. is that he will contact building control himself. *That way, if there is any aggro because BC did not approve the change then the OP is slightly distanced from teh strom: "i employed a Struct eng to assess the damage in my flat - I didn'tshop you to BC". The absence of a party wall agreement (or even a PW notice) suggests they have not being doing everything by the book and it is *possible that BC are completely in the dark about it all. Robert If the freehold of both flats is owmned by the same person who serves who with a notice? MBQ |
#19
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Cracks after downstairs work.
In article om,
"brass monkey" writes: I'm absolutely convinced that our windowframes support the lintels which support the brickwork. Two of mine were like that - the timber lintels above weren't well enough supported by the brickwork. There was a brickie there doing some other work when the first such one was exposed, and he stepped across and mortared in a new brick support for that one. I did the same when we came across the second one. The others were all fine. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
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