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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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A happy new year to one and all.
I recently inherited my late fathers house. Late Tudor farmhouse and a big old barn of a place (no pun intended). Listed G2. Timber framed, brick infill to the ground floor, wattle/daub or similar to the 1st floor, peg tiled roof. The exterior is rendered & painted, timbers are exposed throughout. All timbers appear to be oak and in good condition mainly. Over the last few days I've had the chance to have a good look around and what I see dismays me greatly. The wiring, plumbing & ch have all been completely renewed in the last 10 years and there are no known problems with these. However, I can't find any other aspect of the old place that does not need major attention. Most of the problems I know how to deal with, but one in particular needs professional advice I feel. The main rooms on the ground floor are about 25ft square. The ceilings are supported by 12" x 12" beams in a + arrangement. The cross is central to each room and formed by a single timber span with the 2 'arms' double morticed/tenoned to that single span. Joists of 9"x6" are morticed/tenoned to the 2 arms at about 18" centres. A very substantial structure. In one room only the single span is bowed downwards by about 3" and this is immediately noticeable. Equally worrying is that the tenons of the 'arms' have pulled out by at least an inch on each side. I presume this is a result of the main timber bowing. As you might imagine this worries me greatly as a failure of these timbers could be catastrophic. To the best of my knowledge this problem has arisen quite recently, certainly within the last 20 years. I could jack up the ceiling beams and put a 12x12 oak prop beneath the centre of the cross. This would effectively destroy the appearance of a lovely room. I would be more inclined to jack the structure up beyond level and then secure the 2 arms together using a substantial metal strap or straps. I'm worried about what effects any jacking operation might have upon other parts of the structure. Thus I feel expert advice is needed. Anyone know where I can ask for such advice please? Many thanks Nick. |
#2
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![]() "Nick" wrote in message ... A happy new year to one and all. I recently inherited my late fathers house. Late Tudor farmhouse and a big old barn of a place (no pun intended). Listed G2. Timber framed, brick infill to the ground floor, wattle/daub or similar to the 1st floor, peg tiled roof. The exterior is rendered & painted, timbers are exposed throughout. All timbers appear to be oak and in good condition mainly. Over the last few days I've had the chance to have a good look around and what I see dismays me greatly. The wiring, plumbing & ch have all been completely renewed in the last 10 years and there are no known problems with these. However, I can't find any other aspect of the old place that does not need major attention. Most of the problems I know how to deal with, but one in particular needs professional advice I feel. The main rooms on the ground floor are about 25ft square. The ceilings are supported by 12" x 12" beams in a + arrangement. The cross is central to each room and formed by a single timber span with the 2 'arms' double morticed/tenoned to that single span. Joists of 9"x6" are morticed/tenoned to the 2 arms at about 18" centres. A very substantial structure. In one room only the single span is bowed downwards by about 3" and this is immediately noticeable. Equally worrying is that the tenons of the 'arms' have pulled out by at least an inch on each side. I presume this is a result of the main timber bowing. As you might imagine this worries me greatly as a failure of these timbers could be catastrophic. To the best of my knowledge this problem has arisen quite recently, certainly within the last 20 years. I could jack up the ceiling beams and put a 12x12 oak prop beneath the centre of the cross. This would effectively destroy the appearance of a lovely room. I would be more inclined to jack the structure up beyond level and then secure the 2 arms together using a substantial metal strap or straps. I'm worried about what effects any jacking operation might have upon other parts of the structure. Thus I feel expert advice is needed. Anyone know where I can ask for such advice please? Many thanks Nick. I wonder if the CH installed a decade ago has been slowly drying out and shrinking the timbers. This is obviously a lovely and valuable house. I think you should employ a structural engineer to investigate the problem for you. He/she can also be used to supervise any work that you have done. They charge about 3 to 6 % of the contract price, perhaps more for smaller projects. Hugh Lander's book The House Restorer's Guide is food for thought. It helps newbies (and I was one) not to ruin and devalue fine old houses. Published by David and Charles ISBN 0 7153 8386 8 Good luck. Its worth it to live in a fine house. Peter Scott |
#3
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On Tue, 1 Feb 2005 19:25:44 -0000, Peter Scott wrote:
"Nick" wrote in message ... A happy new year to one and all. I recently inherited my late fathers house. Late Tudor farmhouse and a big old barn of a place (no pun intended). Listed G2. Timber framed, brick infill to the ground floor, wattle/daub or similar to the 1st floor, peg tiled roof. The exterior is rendered & painted, timbers are exposed throughout. All timbers appear to be oak and in good condition mainly. Over the last few days I've had the chance to have a good look around and what I see dismays me greatly. The wiring, plumbing & ch have all been completely renewed in the last 10 years and there are no known problems with these. However, I can't find any other aspect of the old place that does not need major attention. Most of the problems I know how to deal with, but one in particular needs professional advice I feel. The main rooms on the ground floor are about 25ft square. The ceilings are supported by 12" x 12" beams in a + arrangement. The cross is central to each room and formed by a single timber span with the 2 'arms' double morticed/tenoned to that single span. Joists of 9"x6" are morticed/tenoned to the 2 arms at about 18" centres. A very substantial structure. In one room only the single span is bowed downwards by about 3" and this is immediately noticeable. Equally worrying is that the tenons of the 'arms' have pulled out by at least an inch on each side. I presume this is a result of the main timber bowing. As you might imagine this worries me greatly as a failure of these timbers could be catastrophic. To the best of my knowledge this problem has arisen quite recently, certainly within the last 20 years. I could jack up the ceiling beams and put a 12x12 oak prop beneath the centre of the cross. This would effectively destroy the appearance of a lovely room. I would be more inclined to jack the structure up beyond level and then secure the 2 arms together using a substantial metal strap or straps. I'm worried about what effects any jacking operation might have upon other parts of the structure. Thus I feel expert advice is needed. Anyone know where I can ask for such advice please? Many thanks Nick. I wonder if the CH installed a decade ago has been slowly drying out and shrinking the timbers. This is obviously a lovely and valuable house. I think you should employ a structural engineer to investigate the problem for you. He/she can also be used to supervise any work that you have done. They charge about 3 to 6 % of the contract price, perhaps more for smaller projects. Hugh Lander's book The House Restorer's Guide is food for thought. It helps newbies (and I was one) not to ruin and devalue fine old houses. Published by David and Charles ISBN 0 7153 8386 8 Good luck. Its worth it to live in a fine house. Peter Scott Your time setting on the PC are way off. You're showing the first of February already. :-) |
#4
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![]() "Peter Scott" wrote in message ... "Nick" wrote in message ... A happy new year to one and all. I recently inherited my late fathers house. Late Tudor farmhouse and a big old barn of a place (no pun intended). Listed G2. Timber framed, brick infill to the ground floor, wattle/daub or similar to the 1st floor, peg tiled roof. The exterior is rendered & painted, timbers are exposed throughout. All timbers appear to be oak and in good condition mainly. Over the last few days I've had the chance to have a good look around and what I see dismays me greatly. The wiring, plumbing & ch have all been completely renewed in the last 10 years and there are no known problems with these. However, I can't find any other aspect of the old place that does not need major attention. Most of the problems I know how to deal with, but one in particular needs professional advice I feel. The main rooms on the ground floor are about 25ft square. The ceilings are supported by 12" x 12" beams in a + arrangement. The cross is central to each room and formed by a single timber span with the 2 'arms' double morticed/tenoned to that single span. Joists of 9"x6" are morticed/tenoned to the 2 arms at about 18" centres. A very substantial structure. In one room only the single span is bowed downwards by about 3" and this is immediately noticeable. Equally worrying is that the tenons of the 'arms' have pulled out by at least an inch on each side. I presume this is a result of the main timber bowing. As you might imagine this worries me greatly as a failure of these timbers could be catastrophic. To the best of my knowledge this problem has arisen quite recently, certainly within the last 20 years. I could jack up the ceiling beams and put a 12x12 oak prop beneath the centre of the cross. This would effectively destroy the appearance of a lovely room. I would be more inclined to jack the structure up beyond level and then secure the 2 arms together using a substantial metal strap or straps. I'm worried about what effects any jacking operation might have upon other parts of the structure. Thus I feel expert advice is needed. Anyone know where I can ask for such advice please? Many thanks Nick. I wonder if the CH installed a decade ago has been slowly drying out and shrinking the timbers. Forced air heating incorporating humidity control is ideal for older houses with valuable timbers. The humidity can be set so it is never too dry and achieves the optimum. If extensive rennovation is being carried out, the ductwork can be worked into floors and the likes and long thing grills hidden behind beams, etc. _________________________________________ Usenet Zone Free Binaries Usenet Server More than 120,000 groups Unlimited download http://www.usenetzone.com to open account |
#5
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![]() " Forced air heating incorporating humidity control is ideal for older houses with valuable timbers. The humidity can be set so it is never too dry and achieves the optimum. If extensive rennovation is being carried out, the ductwork can be worked into floors and the likes and long thing grills hidden behind beams, etc. I don't think just adding moisture would be enough. Hardwoods air dry pretty quickly in the tropics where humidity can be close to 100%. The chances are that, after 10 years, it's done all the shrinking it's going to do. Once timber has acclimatised to an environment, that's usually the end of the matter. You can use a basic tell-tale system to determine whether timber is still on the move by nailing a piece of thin softwood across a joint so that it will split with the grain if the underlying hardwood moves. Cheap cladding is ideal because it at least starts off virtually bone dry. |
#6
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Stuart Noble wrote:
" Forced air heating incorporating humidity control is ideal for older houses with valuable timbers. The humidity can be set so it is never too dry and achieves the optimum. If extensive rennovation is being carried out, the ductwork can be worked into floors and the likes and long thing grills hidden behind beams, etc. I don't think just adding moisture would be enough. Hardwoods air dry pretty quickly in the tropics where humidity can be close to 100%. The chances are that, after 10 years, it's done all the shrinking it's going to do. Once timber has acclimatised to an environment, that's usually the end of the matter. You can use a basic tell-tale system to determine whether timber is still on the move by nailing a piece of thin softwood across a joint so that it will split with the grain if the underlying hardwood moves. Cheap cladding is ideal because it at least starts off virtually bone dry. Once out of the direct rain, wood settles to about 10-15% moisture content, varying between low (winter with central heating) and high (summer with humid air and no heating). From green to this level of drybness accounts for about 1% longitudinal shrinkage, and 10% across the grain - more in the direction tangential to the rings, and less across the rings. This alone causes green oak frames to move considerably in the first 5-10 years of construction. After that, moving from 'barn' type conditions, to 'central heated' will pull about 2% off the widths again. If the gaps are more than the 12% or so that might be expected, a structural problem may be happening. However summer to winter variation on e.g. a 12" wide beam may be as much as 4-5mm. Typical cause of structural problems are roof trusses cut through to form upstairs dooways, and rotting in the timbers themselcves, causing partial collapes and gross movement. |
#7
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Nick wrote:
A happy new year to one and all. I recently inherited my late fathers house. Late Tudor farmhouse and a big old barn of a place (no pun intended). Listed G2. Timber framed, brick infill to the ground floor, wattle/daub or similar to the 1st floor, peg tiled roof. The exterior is rendered & painted, timbers are exposed throughout. All timbers appear to be oak and in good condition mainly. Over the last few days I've had the chance to have a good look around and what I see dismays me greatly. The wiring, plumbing & ch have all been completely renewed in the last 10 years and there are no known problems with these. However, I can't find any other aspect of the old place that does not need major attention. Most of the problems I know how to deal with, but one in particular needs professional advice I feel. The main rooms on the ground floor are about 25ft square. The ceilings are supported by 12" x 12" beams in a + arrangement. The cross is central to each room and formed by a single timber span with the 2 'arms' double morticed/tenoned to that single span. Joists of 9"x6" are morticed/tenoned to the 2 arms at about 18" centres. A very substantial structure. In one room only the single span is bowed downwards by about 3" and this is immediately noticeable. Equally worrying is that the tenons of the 'arms' have pulled out by at least an inch on each side. I presume this is a result of the main timber bowing. As you might imagine this worries me greatly as a failure of these timbers could be catastrophic. To the best of my knowledge this problem has arisen quite recently, certainly within the last 20 years. I could jack up the ceiling beams and put a 12x12 oak prop beneath the centre of the cross. This would effectively destroy the appearance of a lovely room. I would be more inclined to jack the structure up beyond level and then secure the 2 arms together using a substantial metal strap or straps. I'm worried about what effects any jacking operation might have upon other parts of the structure. Thus I feel expert advice is needed. Anyone know where I can ask for such advice please? Many thanks Nick. Where are you nick? If in east anglia, have some good carpenters who can fix this stuff. I'd say a structural engineer would be first port of call - pay for a full structural survey. A couple of hundred probably and worth every penny. |
#8
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On Sat, 01 Jan 2005 19:46:44 +0000, The Natural Philosopher
wrote: If in east anglia, have some good carpenters who can fix this stuff. Thats true in other parts of the country too I'd say a structural engineer would be first port of call - pay for a full structural survey. A couple of hundred probably and worth every penny. Agreed (is this a first NP?!) but be sure you speak to a structural engineer who is experienced in old buildings like this. Call the SPAB free helpline to get a list of names. www.spab.org.uk Anna ~~ Anna Kettle, Suffolk, England |""""| ~ Lime plaster repairs / ^^ \ // Freehand modelling in lime: overmantels, pargeting etc |____| www.kettlenet.co.uk 01359 230642 |
#9
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Anna Kettle wrote:
On Sat, 01 Jan 2005 19:46:44 +0000, The Natural Philosopher wrote: If in east anglia, have some good carpenters who can fix this stuff. Thats true in other parts of the country too No it isn't, because I don't know of them Anna :-) I'd say a structural engineer would be first port of call - pay for a full structural survey. A couple of hundred probably and worth every penny. Agreed (is this a first NP?!) but be sure you speak to a structural engineer who is experienced in old buildings like this. Call the SPAB free helpline to get a list of names. www.spab.org.uk Indeed. Anna ~~ Anna Kettle, Suffolk, England |""""| ~ Lime plaster repairs / ^^ \ // Freehand modelling in lime: overmantels, pargeting etc |____| www.kettlenet.co.uk 01359 230642 |
#10
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![]() "The Natural Philosopher" wrote in message ... Nick wrote: A happy new year to one and all. I recently inherited my late fathers house. Late Tudor farmhouse and a big old barn of a place (no pun intended). Listed G2. Timber framed, brick infill to the ground floor, wattle/daub or similar to the 1st floor, peg tiled roof. The exterior is rendered & painted, timbers are exposed throughout. All timbers appear to be oak and in good condition mainly. Over the last few days I've had the chance to have a good look around and what I see dismays me greatly. The wiring, plumbing & ch have all been completely renewed in the last 10 years and there are no known problems with these. However, I can't find any other aspect of the old place that does not need major attention. Most of the problems I know how to deal with, but one in particular needs professional advice I feel. The main rooms on the ground floor are about 25ft square. The ceilings are supported by 12" x 12" beams in a + arrangement. The cross is central to each room and formed by a single timber span with the 2 'arms' double morticed/tenoned to that single span. Joists of 9"x6" are morticed/tenoned to the 2 arms at about 18" centres. A very substantial structure. In one room only the single span is bowed downwards by about 3" and this is immediately noticeable. Equally worrying is that the tenons of the 'arms' have pulled out by at least an inch on each side. I presume this is a result of the main timber bowing. As you might imagine this worries me greatly as a failure of these timbers could be catastrophic. To the best of my knowledge this problem has arisen quite recently, certainly within the last 20 years. I could jack up the ceiling beams and put a 12x12 oak prop beneath the centre of the cross. This would effectively destroy the appearance of a lovely room. I would be more inclined to jack the structure up beyond level and then secure the 2 arms together using a substantial metal strap or straps. I'm worried about what effects any jacking operation might have upon other parts of the structure. Thus I feel expert advice is needed. Anyone know where I can ask for such advice please? Many thanks Nick. Where are you nick? If in east anglia, have some good carpenters who can fix this stuff. I'd say a structural engineer would be first port of call - pay for a full structural survey. A couple of hundred probably and worth every penny. Thank you for the sound advice. I'm in Bucks, not a long way from Heathrow (unfortunately). I guess a full structural survey is a good way to start into this venture. I'd be pleased if a couple of hundred would cover it but I fear that won't be the case. Most certainly a couple of days as least. Do you know of any good tilers ? I'm told there are about 120,000 in total and some repair is urgently required. We used to use an American Indian from Devon. Best tiler I have ever seen. He went off the scene some years ago and all since have done more damage than good. Nick. |
#11
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The first thing to remember is that in a listed building, particularly of
that age, there is very little that can be legally done without getting formal listed building consent from your local planning authority. Indeed is a criminal offence to make many changes without such approval. Unfortunately it means your will have to wade through a lot of bureaucracy. You need to choose a structural engineer or surveyor who specialises in such buildings. It does not come cheap and the figure quoted by someone else is absurd. Peter Crosland |
#12
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Peter Crosland wrote:
The first thing to remember is that in a listed building, particularly of that age, there is very little that can be legally done without getting formal listed building consent from your local planning authority. Indeed is a criminal offence to make many changes without such approval. Unfortunately it means your will have to wade through a lot of bureaucracy. You need to choose a structural engineer or surveyor who specialises in such buildings. It does not come cheap and the figure quoted by someone else is absurd. That was all it actually cost me,from such a firm. Perhaps its absurd, and they were being nice. It wasn't a detailed survey, just a 'what is happening, why, and what are my options' Tht cost me about 150 quid. The indicated costs involved were such that not being listed, I decided to re-make most of the structure, and what I found when doing it made me go for a complete rebuild ultimately. It wasn't that great a cottage, but the location was fabulous. you can see the result at www.larksrise.com if you like. In the process I invoked the same engineers again to validate the new structures. That cost 350 quid for a day or two of calculations. Nothing compared to the final cost of doing the work. Peter Crosland |
#13
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It wasn't a detailed survey, just a 'what is happening, why, and what
are my options' Tht cost me about 150 quid. Um, but a quick opinion on a non-listed building is very different from the full structural survey on a grade 2 listed property, which is what you were originally suggesting! Christian. |
#14
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![]() "Peter Crosland" wrote in message ... The first thing to remember is that in a listed building, particularly of that age, there is very little that can be legally done without getting formal listed building consent from your local planning authority. Indeed is a criminal offence to make many changes without such approval. Unfortunately it means your will have to wade through a lot of bureaucracy. You need to choose a structural engineer or surveyor who specialises in such buildings. It does not come cheap and the figure quoted by someone else is absurd. Peter Crosland I fear you are correct in all points mentioned. Nick. |
#15
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"Nick" wrote in message
I fear you are correct in all points mentioned. He sounds well off I'm sure he has a kidney and a few other bits he can auction of on E-Bay or somewhere to keep the heritage people happy. Flog the thing and get a relic in Wales or a disused croft in the Outer Hebrides. If you have to make repairs at least there is only you it will all come down on. Or rather if it does, and you survive, you won't have to reinstate it to someone else's specs. -- Posted via Mailgate.ORG Server - http://www.Mailgate.ORG |
#16
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On Sat, 1 Jan 2005 21:24:01 -0000, "Nick"
wrote: I'm in Bucks, not a long way from Heathrow (unfortunately). I guess a full structural survey is a good way to start into this venture. I'd be pleased if a couple of hundred would cover it but I fear that won't be the case. Most certainly a couple of days as least. You will find you are entirely within the grasp of the local authority Listed Building Mafia. It would be foolhardy to spend anything without speaking to them first (not that it will give you any comfort - but it may save a small amount of money initially). Do you know of any good tilers ? Yes - two excellent ones in South Herts who do a lot of work in the Sth Bucks area www.tk-tiling.com (also my neighbour, but their workmanship is superb). -- Peter Parry. http://www.wpp.ltd.uk/ |
#17
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![]() Try: http://www.periodproperty.co.uk/cgi-...sing/forum2.pl a discussion forum, but more oriented towards old buildings. "An American Indian from Devon"? |
#18
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![]() "Peter Parry" wrote in message ... On Sat, 1 Jan 2005 21:24:01 -0000, "Nick" wrote: I'm in Bucks, not a long way from Heathrow (unfortunately). I guess a full structural survey is a good way to start into this venture. I'd be pleased if a couple of hundred would cover it but I fear that won't be the case. Most certainly a couple of days as least. You will find you are entirely within the grasp of the local authority Listed Building Mafia. It would be foolhardy to spend anything without speaking to them first (not that it will give you any comfort - but it may save a small amount of money initially). Do you know of any good tilers ? Yes - two excellent ones in South Herts who do a lot of work in the Sth Bucks area www.tk-tiling.com (also my neighbour, but their workmanship is superb). -- Peter Parry. http://www.wpp.ltd.uk/ Thank you, I have been in the clutches of the planning dept. for some years. The listed building mafia is all I need right now! I will contact them, I mean the tiling firm! Nick |
#19
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I have been in the clutches of the planning dept. for some years. The
listed building mafia is all I need right now! I will contact them, I mean the tiling firm! Don't get too taken in by Peter's paranoia about the so called "listed building mafia". The important thing is to make sure you ask them before you start any work. That way if they do object you will not have to spend lots more undoing work they won't authorise. Remember that they are human and doing their job. A lot depends on how you treat them which seems a basic point many ignore. Confrontational tactics seldom get the best results. |
#20
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Nick wrote:
"The Natural Philosopher" wrote in message ... Nick wrote: A happy new year to one and all. I recently inherited my late fathers house. Late Tudor farmhouse and a big old barn of a place (no pun intended). Listed G2. Timber framed, brick infill to the ground floor, wattle/daub or similar to the 1st floor, peg tiled roof. The exterior is rendered & painted, timbers are exposed throughout. All timbers appear to be oak and in good condition mainly. Over the last few days I've had the chance to have a good look around and what I see dismays me greatly. The wiring, plumbing & ch have all been completely renewed in the last 10 years and there are no known problems with these. However, I can't find any other aspect of the old place that does not need major attention. Most of the problems I know how to deal with, but one in particular needs professional advice I feel. The main rooms on the ground floor are about 25ft square. The ceilings are supported by 12" x 12" beams in a + arrangement. The cross is central to each room and formed by a single timber span with the 2 'arms' double morticed/tenoned to that single span. Joists of 9"x6" are morticed/tenoned to the 2 arms at about 18" centres. A very substantial structure. In one room only the single span is bowed downwards by about 3" and this is immediately noticeable. Equally worrying is that the tenons of the 'arms' have pulled out by at least an inch on each side. I presume this is a result of the main timber bowing. As you might imagine this worries me greatly as a failure of these timbers could be catastrophic. To the best of my knowledge this problem has arisen quite recently, certainly within the last 20 years. I could jack up the ceiling beams and put a 12x12 oak prop beneath the centre of the cross. This would effectively destroy the appearance of a lovely room. I would be more inclined to jack the structure up beyond level and then secure the 2 arms together using a substantial metal strap or straps. I'm worried about what effects any jacking operation might have upon other parts of the structure. Thus I feel expert advice is needed. Anyone know where I can ask for such advice please? Many thanks Nick. Where are you nick? If in east anglia, have some good carpenters who can fix this stuff. I'd say a structural engineer would be first port of call - pay for a full structural survey. A couple of hundred probably and worth every penny. Thank you for the sound advice. I'm in Bucks, not a long way from Heathrow (unfortunately). I guess a full structural survey is a good way to start into this venture. I'd be pleased if a couple of hundred would cover it but I fear that won't be the case. Most certainly a couple of days as least. No. It took an engineer less than a couple of hours to identify the crucial weaknesses in my old cottage, and predct what I would find when the walls were dismantled. And come up with three suggestions all of which were sound, and two of which had not occurred to me. Do you know of any good tilers ? I'm told there are about 120,000 in total and some repair is urgently required. We used to use an American Indian from Devon. Best tiler I have ever seen. He went off the scene some years ago and all since have done more damage than good. There are many reputable tiling firms, but don't even go there until you are sure you have a sound structure to pin them to. Its vital that you stabilise the structure, and make good any rot, and pin any weaknesses. In the meantimne all you should do is temporarily make good anything that lets in water, but its not worth spending oodles of cash on: Because I suspect that yu will need to strip back and make good any rotten timber work, and if the structure is collapsing a bit, use steel or whatever to pull it all back together - the engineer will know the key vital areas - and maybe have to replace rotten roof timbers as well. Once you have done that get Anna to advise on re-doing the details - any lathe an plaster walls that you have had to remove to get at vital bits etcx.. She's the antique craftsman. I am just an engineer :-) Though not specifically of the structural sort sadly. Nick. |
#21
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On Sat, 01 Jan 2005 19:46:44 +0000, The Natural Philosopher
wrote: I'd say a structural engineer would be first port of call - pay for a full structural survey. A couple of hundred probably and worth every penny. FMR No! Opening the Yellow Pages and picking out any old structural engineer is just asking for a complete cock-up with a timber frame, let alone an old one. It'd be like asking EDS to build a big IT project - sure, they do a job that covers the same title, but they've never actually seen such a thing done right before. Talk to a local big framing shop and ask for recommendations, or web search down your own. But there are very few structural engineers with timber frame experience, and you need it. And they're all dead easy to fix anyway. There's a reason why places like Avoncroft can afford to pull down derelict framed building and re-erect it in a museum - they really are very simple to perform "huge" repairs on, compared to more modern building methods. |
#22
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Andy Dingley wrote:
On Sat, 01 Jan 2005 19:46:44 +0000, The Natural Philosopher wrote: I'd say a structural engineer would be first port of call - pay for a full structural survey. A couple of hundred probably and worth every penny. FMR No! Opening the Yellow Pages and picking out any old structural engineer is just asking for a complete cock-up with a timber frame, let alone an old one. It'd be like asking EDS to build a big IT project - sure, they do a job that covers the same title, but they've never actually seen such a thing done right before. Talk to a local big framing shop and ask for recommendations, or web search down your own. But there are very few structural engineers with timber frame experience, and you need it. And they're all dead easy to fix anyway. There's a reason why places like Avoncroft can afford to pull down derelict framed building and re-erect it in a museum - they really are very simple to perform "huge" repairs on, compared to more modern building methods. Simple does not mean cheap however. In the final analysis I have known someone completely dismantle, re foundtaon and re-erect (repaired) timbers into a cottage, but it took him 5 years to do it. Its a labour of lovce, not a commercial proposition. One assumes also that the engineers have some knowledge of timber structures. Round here most do, because we have a lot of them. I accept that silly london engineers may not. What you need is someone who can understand where the main structiral elements are, and identfy if they are in serious danger of collapse. Sometimes its noi more than 'oh dear, you need a steel cable between there and there, wind it up and pull the ting back into shape, puts sme steel brackets in, and make good the cracks' Or even 'well its moved, but so what? Its all in sound shape. Or ot mnay be 'blimey, all the sole plates have gone and judging by that bit, half the uprights as well. hats mate is going to costyer' THAT, I suggest is what the OP needs to know. Whether to tackle it at all, or simply auction it off, and if so what sort of budget is going to be required. IME is down to wehther its 'cosmetic' 'quick fixable' or 'take it (half) to pieces, prop, and repair' If the latter, expect to spend a lot. More than a complete rebuild perhaps. Maybe 150 a square foot. |
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The Society for the Protection of Ancient Buildings (SPAB) do lots of books
and leaflets and also have a free advice line - suggest you ring them. www.spab.org.uk Timber moves, and you shouldn't necessarily be concerned - it's not like a modern house. It can absorb movement. In a house 100s of years old you wouldn't expect every joint to be a perfect fit.Very few of mine are! Installation of central heating often causes movement, even in wood 100s of years old. So can the installation of other "modern" things like the installation of double or secondary glazing, or the replacement of lime-based mortars and plasters with portland cement-based materials. You really need to find out if movement is still taking place (the usual method is to stick little glass plates over the joints, and see if they crack over time) Compare your thick oak beams with a modern roof truss made of 2" or 3" softwood and you will see that these old houses were massively over designed in terms of loads on the beams. Your 12" beams are most unlikely to be about to split! I've lived in an old a half-timbered house for many years, and I too was alarmed at many things when I first moved in. But after a while you realise that "imperfections" abound, and in fact that is part of the character. The roof line is so crooked it looks like it might collapse; some of the bedroom floors slope so much you feel you are rolling out of bed; and, as you say, some beam joints look like they are coming apart. But it's been standing over 100s of years over extremes of weather, and it's not about to fall down now! "Nick" wrote in message ... A happy new year to one and all. I recently inherited my late fathers house. Late Tudor farmhouse and a big old barn of a place (no pun intended). Listed G2. Timber framed, brick infill to the ground floor, wattle/daub or similar to the 1st floor, peg tiled roof. The exterior is rendered & painted, timbers are exposed throughout. All timbers appear to be oak and in good condition mainly. Over the last few days I've had the chance to have a good look around and what I see dismays me greatly. The wiring, plumbing & ch have all been completely renewed in the last 10 years and there are no known problems with these. However, I can't find any other aspect of the old place that does not need major attention. Most of the problems I know how to deal with, but one in particular needs professional advice I feel. The main rooms on the ground floor are about 25ft square. The ceilings are supported by 12" x 12" beams in a + arrangement. The cross is central to each room and formed by a single timber span with the 2 'arms' double morticed/tenoned to that single span. Joists of 9"x6" are morticed/tenoned to the 2 arms at about 18" centres. A very substantial structure. In one room only the single span is bowed downwards by about 3" and this is immediately noticeable. Equally worrying is that the tenons of the 'arms' have pulled out by at least an inch on each side. I presume this is a result of the main timber bowing. As you might imagine this worries me greatly as a failure of these timbers could be catastrophic. To the best of my knowledge this problem has arisen quite recently, certainly within the last 20 years. I could jack up the ceiling beams and put a 12x12 oak prop beneath the centre of the cross. This would effectively destroy the appearance of a lovely room. I would be more inclined to jack the structure up beyond level and then secure the 2 arms together using a substantial metal strap or straps. I'm worried about what effects any jacking operation might have upon other parts of the structure. Thus I feel expert advice is needed. Anyone know where I can ask for such advice please? Many thanks Nick. |
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