Home |
Search |
Today's Posts |
|
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. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
Hi all,
We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. Since our conservatory came with a 10 year warranty, we contacted the company, explained the problem to them, which they accepted without any fuss, and they then arranged for one of their fitters to come and replace the panel, which they did a couple of weeks later. All was fine for another six months then the inner glass of a different double-glazed panel shattered overnight in a similar way. The conmpany responded in exactly the same way and the new faulty panel was replaced under warranty. A couple of days ago we were sitting quietly in the conservatory when there was a loud bang and the inner glass of one of the other double-glazed roof panels exploded and loads of fragments of glass showered down around us. Now, for a third time, we have had to contact the company who, once again and without asking any questions, have ordered a new panel which will be installed during the next couple of weeks. Wen I spoke to the company I asked if this was a very common occurrence and was just told that 'yes, it happens'. Should I be reassured with that casual answer? Why has it always been the INNER of the panels that fails? Nothing can have dropped onto the conservatory roof from above and we don't play any hard-ball sports in the conservatory. All very strange. I've done a very close inspection of the structure of the conservatory, paying particular attention to the frames around the glass panels to see if any of them have become distorted but I haven't seen anything that could explain these three glass breakages. I'm grateful that the faulty panels have been replaced (to date) without any hassle from the company and at least I've got another seven years of warranty remaining so can hope that any manufacturing faults in the glass of the remaining panels will have come to light (pun intended!), one way or another, before that warranty expires. I've done a lot of Googling on the subject and discovered that spontaneous shattering of toughened glass panels for no obvious reason is very common, both in the UK and around the world. Sudden temperature changes don't seem to be the cause - the general view seems to be that it just happens sometimes. One explanation offered is that small impurities were in the glass during the tempering process and these can 'grow' over time (months or years) to a point when they cause the glass to shatter suddenly. I'd be very interested to hear the comments of anyone else in this NG who have experienced similar spontaneous shattering of double-glazed panels and how the suppliers of the faulty panels have reacted. ATB - Dave. |
#2
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Thursday, May 22, 2014 10:04:59 AM UTC+1, Dave Chapman wrote:
Are these units fixed into a rigid frame? I once worked in building where the (approx 2m x 3m) DG panels would sometimes do this and it was thought to be due to the building structure moving slightly and stressing the panels. Robert |
#3
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
RobertL wrote:
On Thursday, May 22, 2014 10:04:59 AM UTC+1, Dave Chapman wrote: Are these units fixed into a rigid frame? I once worked in building where the (approx 2m x 3m) DG panels would sometimes do this and it was thought to be due to the building structure moving slightly and stressing the panels. Robert I wonder if the original fitter has used the wrong packing pieces leaving no room for the glass to expand. Given your history of problems I think you'd be justified in asking the company to inspect the fitting of all the glass in the frames. Tim |
#4
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 22/05/2014 10:04, Dave Chapman wrote:
Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. The most common cause of spontaneous shattering is a scratch somewhere that is deep enough to act as a stress concentrator. The flexure of the building with cyclic heating cooling and wind loading gradually makes the crack grow until it becomes self sustaining and detonates. It is even more alarming when it happens with a toughened glass jug of water and the whole thing disintigrates into 5mm pieces. If it happens too often then I would be inclined to blame either rough handling by the installers, something you are doing or bad design. I'm a bit surprised it is always the inside. At a guess the outside cools faster and the frame is slightly too rigid so that the inner surface is in tension. One of mine has a small chip caused by the lawn mower flicking up a stone which so far has survived more than a decade. -- Regards, Martin Brown |
#5
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Thu, 22 May 2014 10:04:59 +0100
Dave Chapman wrote: Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. snip I'd be very interested to hear the comments of anyone else in this NG who have experienced similar spontaneous shattering of double-glazed panels and how the suppliers of the faulty panels have reacted. ATB - Dave. A few months ago, I was parking my car, with witnesses, and the rear window, an openable panel in an estate car tailgate, spontaneously shattered. There was nothing anybody could see that could have caused it. Insurance replaced it for me. -- Davey. |
#6
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Thu, 22 May 2014 11:54:48 +0100, Martin Brown
wrote: On 22/05/2014 10:04, Dave Chapman wrote: Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. The most common cause of spontaneous shattering is a scratch somewhere that is deep enough to act as a stress concentrator. The flexure of the building with cyclic heating cooling and wind loading gradually makes the crack grow until it becomes self sustaining and detonates. It is even more alarming when it happens with a toughened glass jug of water and the whole thing disintigrates into 5mm pieces. I one saw it happen to a molded glass Hors d'oeuvre dish, just after Grace was said. Spooky. -- Graham. %Profound_observation% |
#7
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Thursday, May 22, 2014 11:54:48 AM UTC+1, Martin Brown wrote:
I'm a bit surprised it is always the inside. At a guess the outside cools faster and the frame is slightly too rigid so that the inner surface is in tension. That can't be right Martin. If the outer was cool and shrank faster, it would put the outer in tension and the inner in compression. (You may be thinking of a single sheet of toughened glass which is made by cooling the surface rapidly. The surface layer shrinks and deforms the inside plastically. Eventually the inside cools and shrinks, but the outside is solid - so the inside ends up in tension and the outside in compression.) |
#8
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 22/05/2014 13:15, Martin Bonner wrote:
On Thursday, May 22, 2014 11:54:48 AM UTC+1, Martin Brown wrote: I'm a bit surprised it is always the inside. At a guess the outside cools faster and the frame is slightly too rigid so that the inner surface is in tension. That can't be right Martin. If the outer was cool and shrank faster, it would put the outer in tension and the inner in compression. Fair point Martin. That makes it even more surprising that the inner surface goes pop and consistently at night. I still think is is either related to differential expansion or mistreatment/abuse of the panels. -- Regards, Martin Brown |
#9
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
Davey wrote:
On Thu, 22 May 2014 10:04:59 +0100 Dave Chapman wrote: Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. snip I'd be very interested to hear the comments of anyone else in this NG who have experienced similar spontaneous shattering of double-glazed panels and how the suppliers of the faulty panels have reacted. ATB - Dave. A few months ago, I was parking my car, with witnesses, and the rear window, an openable panel in an estate car tailgate, spontaneously shattered. There was nothing anybody could see that could have caused it. Insurance replaced it for me. This is a well known issue, see http://en.wikipedia.org/wiki/Spontaneous_glass_breakage I've had a car window do this after 10 years, the panel stayed together though and the inclusion that initiated the breakage was still visible (happened on a sudden frosty night). Also, I've seen it happen to thick architectural glass panels in a high profile building. Seem to be the luck of the draw - possibly a bad batch of glass in this case. Chris K |
#10
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Thu, 22 May 2014 18:49:05 +0100
ChrisK wrote: Davey wrote: On Thu, 22 May 2014 10:04:59 +0100 Dave Chapman wrote: Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. snip I'd be very interested to hear the comments of anyone else in this NG who have experienced similar spontaneous shattering of double-glazed panels and how the suppliers of the faulty panels have reacted. ATB - Dave. A few months ago, I was parking my car, with witnesses, and the rear window, an openable panel in an estate car tailgate, spontaneously shattered. There was nothing anybody could see that could have caused it. Insurance replaced it for me. This is a well known issue, see http://en.wikipedia.org/wiki/Spontaneous_glass_breakage I've had a car window do this after 10 years, the panel stayed together though and the inclusion that initiated the breakage was still visible (happened on a sudden frosty night). Also, I've seen it happen to thick architectural glass panels in a high profile building. Seem to be the luck of the draw - possibly a bad batch of glass in this case. Chris K Interesting. I can't say which, if any, of those was the cause of mine. The car is several years old, but it was in winter, although not in a particular cold spell. Whatever. A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. -- Davey. |
#11
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Thursday, May 22, 2014 10:04:59 AM UTC+1, Dave Chapman wrote:
A couple of days ago we were sitting quietly in the conservatory when there was a loud bang and the inner glass of one of the other double-glazed roof panels exploded and loads of fragments of glass showered down around us. As well as having the company inspect all the remaining panels, I would think about fitting an adhesive safety film to hold the pieces together if/when another panel fails. Owain |
#12
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
Yes it happened to a smoked glass mug about a year ago. it was just sitting
there on the table with water in it. There was a dull thud then a dripping sound, so I went in and found a miniflood with tiny bits of dark glass in it. Most odd. I've also had strange things happen in greenouses with plastic sheet going bang, turning black and all scrumpled up and brittle. i assume this is some kind of sun damage, which is not really welcome in a greenhouse! Brian -- From the Sofa of Brian Gaff Reply address is active "Graham." wrote in message ... On Thu, 22 May 2014 11:54:48 +0100, Martin Brown wrote: On 22/05/2014 10:04, Dave Chapman wrote: Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. The most common cause of spontaneous shattering is a scratch somewhere that is deep enough to act as a stress concentrator. The flexure of the building with cyclic heating cooling and wind loading gradually makes the crack grow until it becomes self sustaining and detonates. It is even more alarming when it happens with a toughened glass jug of water and the whole thing disintigrates into 5mm pieces. I one saw it happen to a molded glass Hors d'oeuvre dish, just after Grace was said. Spooky. -- Graham. %Profound_observation% |
#13
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
I was just thinking that myself, but another thought struck me, is there
any gass put in these units that might expand, and is the inner glass the same thickness and type as the outer one is? Brian -- From the Sofa of Brian Gaff Reply address is active wrote in message ... On Thursday, May 22, 2014 10:04:59 AM UTC+1, Dave Chapman wrote: A couple of days ago we were sitting quietly in the conservatory when there was a loud bang and the inner glass of one of the other double-glazed roof panels exploded and loads of fragments of glass showered down around us. As well as having the company inspect all the remaining panels, I would think about fitting an adhesive safety film to hold the pieces together if/when another panel fails. Owain |
#14
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
In article ,
Davey wrote: A few months ago, I was parking my car, with witnesses, and the rear window, an openable panel in an estate car tailgate, spontaneously shattered. There was nothing anybody could see that could have caused it. Had you been using the heater? That's what happened to me - I think it may have overheated locally. Insurance replaced it for me. Same here. And Autoglass charged my insurance company 500 quid for a screen I could buy for 200. -- *Experience is something you don't get until just after you need it.* Dave Plowman London SW To e-mail, change noise into sound. |
#15
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Fri, 23 May 2014 11:25:43 +0100
"Dave Plowman (News)" wrote: In article , Davey wrote: A few months ago, I was parking my car, with witnesses, and the rear window, an openable panel in an estate car tailgate, spontaneously shattered. There was nothing anybody could see that could have caused it. Had you been using the heater? That's what happened to me - I think it may have overheated locally. Not really sure, it's one of those automatic systems. But it wasn't in deep winter weather. Insurance replaced it for me. Same here. And Autoglass charged my insurance company 500 quid for a screen I could buy for 200. No idea what the company I was sent to by Aviva charged them. He said it would have been about £200-£300 if I had paid myself, and it was a hard to find piece of glass. I'm glad I didn't try to fit it myself, it looks really complex, what with fitting into the slots, various power connections, wiper motor and arm, and struts. Well worth the deductible. -- Davey. |
#16
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Fri, 23 May 2014 11:01:07 +0100
"Brian Gaff" wrote: I've also had strange things happen in greenouses with plastic sheet going bang, turning black and all scrumpled up and brittle. i assume this is some kind of sun damage, which is not really welcome in a greenhouse! You haven't had any nuclear bomb testing recently in your area? -- Davey. |
#17
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Thu, 22 May 2014 19:20:46 +0100, Davey
wrote: ====snip==== A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. trucks --- for the benefit of any confused americans -- Regards, J B Good |
#18
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Fri, 23 May 2014 14:34:13 +0100
Johny B Good wrote: On Thu, 22 May 2014 19:20:46 +0100, Davey wrote: ====snip==== A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. trucks --- for the benefit of any confused americans This is a *UK* newsgroup! English spoken here, proudly. -- Davey. |
#19
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Friday, May 23, 2014 2:34:13 PM UTC+1, Johny B Good wrote:
On Thu, 22 May 2014 19:20:46 +0100, Davey wrote: ====snip==== A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. trucks --- for the benefit of any confused americans -- Regards, J B Good A bit of the bridge? Jonathan |
#20
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 23/05/2014 14:34, Johny B Good wrote:
trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. Andy |
#21
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Fri, 23 May 2014 21:28:18 +0100
Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. Andy True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. -- Davey. |
#22
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Fri, 23 May 2014 13:27:11 -0700 (PDT)
Jonathan wrote: On Friday, May 23, 2014 2:34:13 PM UTC+1, Johny B Good wrote: On Thu, 22 May 2014 19:20:46 +0100, Davey wrote: ====snip==== A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. trucks --- for the benefit of any confused americans -- Regards, J B Good A bit of the bridge? Jonathan Possible. Michigan bridges were notoriously badly maintained. It was many years ago now, so I doubt we'll ever know. -- Davey. |
#23
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 5/23/2014 7:16 PM, Davey wrote:
On Fri, 23 May 2014 21:28:18 +0100 Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. Which American dictionary have you consulted? |
#24
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Fri, 23 May 2014 19:27:15 -0400
S Viemeister wrote: On 5/23/2014 7:16 PM, Davey wrote: On Fri, 23 May 2014 21:28:18 +0100 Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. Which American dictionary have you consulted? The verbal one of living there for 30 years. -- Davey. |
#25
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 5/23/2014 7:34 PM, Davey wrote:
On Fri, 23 May 2014 19:27:15 -0400 S Viemeister wrote: On 5/23/2014 7:16 PM, Davey wrote: On Fri, 23 May 2014 21:28:18 +0100 Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. Which American dictionary have you consulted? The verbal one of living there for 30 years. Michigan must be more backward than the east coast. |
#26
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
Davey wrote:
On Fri, 23 May 2014 13:27:11 -0700 (PDT) wrote: On Friday, May 23, 2014 2:34:13 PM UTC+1, Johny B Good wrote: On Thu, 22 May 2014 19:20:46 +0100, wrote: ====snip==== A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. trucks--- for the benefit of any confused americans -- Regards, J B Good A bit of the bridge? Jonathan Possible. Michigan bridges were notoriously badly maintained. It was many years ago now, so I doubt we'll ever know. In my case, it was whilst driving through Mississippi, there was a hell of a bang and I discovered that a plastic trim piece behind the rear door had gained a starred decoration. I put it down to a stray bullet from a hunter as the area was forested. Luckily it didn't hit any glass. |
#27
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Fri, 23 May 2014 21:37:49 -0400
S Viemeister wrote: On 5/23/2014 7:34 PM, Davey wrote: On Fri, 23 May 2014 19:27:15 -0400 S Viemeister wrote: On 5/23/2014 7:16 PM, Davey wrote: On Fri, 23 May 2014 21:28:18 +0100 Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. Which American dictionary have you consulted? The verbal one of living there for 30 years. Michigan must be more backward than the east coast. I lived and worked in Michigan, Ohio, Indiana, New Jersey, New York, Illinois, Minnesota, California, Tennessee, Georgia, Kentucky, Maine, Connecticut, Virginia, North and South Carolinas, and maybe more, and visited many more. In none of them were the words 'fortnight' or 'twice' ever used voluntarily by any American I met, and if I used them, I got asked what I meant when using them. Another oddity is the use of 'one-half' instead of 'a half', as in: English: "He took the corner too fast, and rolled the car one and a half times". American: "He took the curve too fast, and rolled the car one and one half times". It always sounds odd to the English ear. -- Davey. |
#28
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Sat, 24 May 2014 11:35:44 +0100
Capitol wrote: Davey wrote: On Fri, 23 May 2014 13:27:11 -0700 (PDT) wrote: On Friday, May 23, 2014 2:34:13 PM UTC+1, Johny B Good wrote: On Thu, 22 May 2014 19:20:46 +0100, wrote: ====snip==== A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. trucks--- for the benefit of any confused americans -- Regards, J B Good A bit of the bridge? Jonathan Possible. Michigan bridges were notoriously badly maintained. It was many years ago now, so I doubt we'll ever know. In my case, it was whilst driving through Mississippi, there was a hell of a bang and I discovered that a plastic trim piece behind the rear door had gained a starred decoration. I put it down to a stray bullet from a hunter as the area was forested. Luckily it didn't hit any glass. In Mississippi, it could as easily have been somebody doing moving target practice! Oh, sorry, that's Detroit.... -- Davey. |
#29
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
Davey wrote:
On Sat, 24 May 2014 11:35:44 +0100 wrote: Davey wrote: On Fri, 23 May 2014 13:27:11 -0700 (PDT) wrote: On Friday, May 23, 2014 2:34:13 PM UTC+1, Johny B Good wrote: On Thu, 22 May 2014 19:20:46 +0100, wrote: ====snip==== A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. trucks--- for the benefit of any confused americans -- Regards, J B Good A bit of the bridge? Jonathan Possible. Michigan bridges were notoriously badly maintained. It was many years ago now, so I doubt we'll ever know. In my case, it was whilst driving through Mississippi, there was a hell of a bang and I discovered that a plastic trim piece behind the rear door had gained a starred decoration. I put it down to a stray bullet from a hunter as the area was forested. Luckily it didn't hit any glass. In Mississippi, it could as easily have been somebody doing moving target practice! Oh, sorry, that's Detroit.... Or Houston! |
#30
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Sat, 24 May 2014 12:10:36 +0100
Capitol wrote: Davey wrote: On Sat, 24 May 2014 11:35:44 +0100 wrote: Davey wrote: On Fri, 23 May 2014 13:27:11 -0700 (PDT) wrote: On Friday, May 23, 2014 2:34:13 PM UTC+1, Johny B Good wrote: On Thu, 22 May 2014 19:20:46 +0100, wrote: ====snip==== A colleague of mine in the US once had a similar event while crossing the high bridge where the Interstate crosses the Rouge River outside Detroit, but the cause was a large piece of metal that came in through the back window, and landed behind his passenger seat. The puzzle was how it got there at all, he was high above ground level, and there were no lorries anywhere near him at the time. trucks--- for the benefit of any confused americans -- Regards, J B Good A bit of the bridge? Jonathan Possible. Michigan bridges were notoriously badly maintained. It was many years ago now, so I doubt we'll ever know. In my case, it was whilst driving through Mississippi, there was a hell of a bang and I discovered that a plastic trim piece behind the rear door had gained a starred decoration. I put it down to a stray bullet from a hunter as the area was forested. Luckily it didn't hit any glass. In Mississippi, it could as easily have been somebody doing moving target practice! Oh, sorry, that's Detroit.... Or Houston! https://www.youtube.com/watch?v=s1n37eg-lFI -- Davey. |
#31
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 5/24/2014 7:05 AM, Davey wrote:
On Fri, 23 May 2014 21:37:49 -0400 S Viemeister wrote: On 5/23/2014 7:34 PM, Davey wrote: On Fri, 23 May 2014 19:27:15 -0400 S Viemeister wrote: On 5/23/2014 7:16 PM, Davey wrote: On Fri, 23 May 2014 21:28:18 +0100 Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. Which American dictionary have you consulted? The verbal one of living there for 30 years. Michigan must be more backward than the east coast. I lived and worked in Michigan, Ohio, Indiana, New Jersey, New York, Illinois, Minnesota, California, Tennessee, Georgia, Kentucky, Maine, Connecticut, Virginia, North and South Carolinas, and maybe more, and visited many more. In none of them were the words 'fortnight' or 'twice' ever used voluntarily by any American I met, and if I used them, I got asked what I meant when using them. Another oddity is the use of 'one-half' instead of 'a half', as in: English: "He took the corner too fast, and rolled the car one and a half times". American: "He took the curve too fast, and rolled the car one and one half times". It always sounds odd to the English ear. I, too, have spent decades in the US, and my experience differs from yours. |
#32
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Sat, 24 May 2014 07:46:05 -0400
S Viemeister wrote: On 5/24/2014 7:05 AM, Davey wrote: On Fri, 23 May 2014 21:37:49 -0400 S Viemeister wrote: On 5/23/2014 7:34 PM, Davey wrote: On Fri, 23 May 2014 19:27:15 -0400 S Viemeister wrote: On 5/23/2014 7:16 PM, Davey wrote: On Fri, 23 May 2014 21:28:18 +0100 Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. Which American dictionary have you consulted? The verbal one of living there for 30 years. Michigan must be more backward than the east coast. I lived and worked in Michigan, Ohio, Indiana, New Jersey, New York, Illinois, Minnesota, California, Tennessee, Georgia, Kentucky, Maine, Connecticut, Virginia, North and South Carolinas, and maybe more, and visited many more. In none of them were the words 'fortnight' or 'twice' ever used voluntarily by any American I met, and if I used them, I got asked what I meant when using them. Another oddity is the use of 'one-half' instead of 'a half', as in: English: "He took the corner too fast, and rolled the car one and a half times". American: "He took the curve too fast, and rolled the car one and one half times". It always sounds odd to the English ear. I, too, have spent decades in the US, and my experience differs from yours. We clearly moved in different circles. -- Davey. |
#33
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Sat, 24 May 2014 13:00:19 +0100
Davey wrote: On Sat, 24 May 2014 07:46:05 -0400 S Viemeister wrote: On 5/24/2014 7:05 AM, Davey wrote: On Fri, 23 May 2014 21:37:49 -0400 S Viemeister wrote: On 5/23/2014 7:34 PM, Davey wrote: On Fri, 23 May 2014 19:27:15 -0400 S Viemeister wrote: On 5/23/2014 7:16 PM, Davey wrote: On Fri, 23 May 2014 21:28:18 +0100 Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. Which American dictionary have you consulted? The verbal one of living there for 30 years. Michigan must be more backward than the east coast. I lived and worked in Michigan, Ohio, Indiana, New Jersey, New York, Illinois, Minnesota, California, Tennessee, Georgia, Kentucky, Maine, Connecticut, Virginia, North and South Carolinas, and maybe more, and visited many more. In none of them were the words 'fortnight' or 'twice' ever used voluntarily by any American I met, and if I used them, I got asked what I meant when using them. Another oddity is the use of 'one-half' instead of 'a half', as in: English: "He took the corner too fast, and rolled the car one and a half times". American: "He took the curve too fast, and rolled the car one and one half times". It always sounds odd to the English ear. I, too, have spent decades in the US, and my experience differs from yours. We clearly moved in different circles. I cite these pages in support of my view, using an American dictionary: http://www.merriam-webster.com/dictionary/fortnight http://www.merriam-webster.com/dictionary/twice http://www.merriam-webster.com/dictionary/lorry Check the Comments in all cases. for peoples' familiarity, or otherwise, with the terms. -- Davey. |
#34
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 5/24/2014 8:00 AM, Davey wrote:
On Sat, 24 May 2014 07:46:05 -0400 S Viemeister wrote: On 5/24/2014 7:05 AM, Davey wrote: I lived and worked in Michigan, Ohio, Indiana, New Jersey, New York, Illinois, Minnesota, California, Tennessee, Georgia, Kentucky, Maine, Connecticut, Virginia, North and South Carolinas, and maybe more, and visited many more. In none of them were the words 'fortnight' or 'twice' ever used voluntarily by any American I met, and if I used them, I got asked what I meant when using them. Another oddity is the use of 'one-half' instead of 'a half', as in: English: "He took the corner too fast, and rolled the car one and a half times". American: "He took the curve too fast, and rolled the car one and one half times". It always sounds odd to the English ear. I, too, have spent decades in the US, and my experience differs from yours. We clearly moved in different circles. Apparently so. |
#35
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Sat, 24 May 2014 13:08:03 +0100
Davey wrote: On Sat, 24 May 2014 13:00:19 +0100 Davey wrote: On Sat, 24 May 2014 07:46:05 -0400 S Viemeister wrote: On 5/24/2014 7:05 AM, Davey wrote: On Fri, 23 May 2014 21:37:49 -0400 S Viemeister wrote: On 5/23/2014 7:34 PM, Davey wrote: On Fri, 23 May 2014 19:27:15 -0400 S Viemeister wrote: On 5/23/2014 7:16 PM, Davey wrote: On Fri, 23 May 2014 21:28:18 +0100 Vir Campestris wrote: On 23/05/2014 14:34, Johny B Good wrote: trucks --- for the benefit of any confused americans It's not as if we're talking about carts and trolleys. AFAIK lorry only has one meaning. True, but it is not in the American dictionary. Nor is 'fortnight'. Nor is 'twice', unbelievably. Which American dictionary have you consulted? The verbal one of living there for 30 years. Michigan must be more backward than the east coast. I lived and worked in Michigan, Ohio, Indiana, New Jersey, New York, Illinois, Minnesota, California, Tennessee, Georgia, Kentucky, Maine, Connecticut, Virginia, North and South Carolinas, and maybe more, and visited many more. In none of them were the words 'fortnight' or 'twice' ever used voluntarily by any American I met, and if I used them, I got asked what I meant when using them. snip Was watching 'Homes under the Hammer' today, and there was this American young lady on, and lo! and behold, she came out with 'two times' instead of twice, all on her own. -- Davey. |
#36
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
replying to Dave Chapman , TonyB wrote:
dave wrote: Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. Since our conservatory came with a 10 year warranty, we contacted the company, explained the problem to them, which they accepted without any fuss, and they then arranged for one of their fitters to come and replace the panel, which they did a couple of weeks later. All was fine for another six months then the inner glass of a different double-glazed panel shattered overnight in a similar way. The conmpany responded in exactly the same way and the new faulty panel was replaced under warranty. A couple of days ago we were sitting quietly in the conservatory when there was a loud bang and the inner glass of one of the other double-glazed roof panels exploded and loads of fragments of glass showered down around us. Now, for a third time, we have had to contact the company who, once again and without asking any questions, have ordered a new panel which will be installed during the next couple of weeks. Wen I spoke to the company I asked if this was a very common occurrence and was just told that 'yes, it happens'. Should I be reassured with that casual answer? Why has it always been the INNER of the panels that fails? Nothing can have dropped onto the conservatory roof from above and we don't play any hard-ball sports in the conservatory. All very strange. I've done a very close inspection of the structure of the conservatory, paying particular attention to the frames around the glass panels to see if any of them have become distorted but I haven't seen anything that could explain these three glass breakages. I'm grateful that the faulty panels have been replaced (to date) without any hassle from the company and at least I've got another seven years of warranty remaining so can hope that any manufacturing faults in the glass of the remaining panels will have come to light (pun intended!), one way or another, before that warranty expires. I've done a lot of Googling on the subject and discovered that spontaneous shattering of toughened glass panels for no obvious reason is very common, both in the UK and around the world. Sudden temperature changes don't seem to be the cause - the general view seems to be that it just happens sometimes. One explanation offered is that small impurities were in the glass during the tempering process and these can 'grow' over time (months or years) to a point when they cause the glass to shatter suddenly. I'd be very interested to hear the comments of anyone else in this NG who have experienced similar spontaneous shattering of double-glazed panels and how the suppliers of the faulty panels have reacted. ATB - Dave. Hi Dave, We have experienced exactly the same thing. We also have a conservatory from a major supplier, fitted just under 4 years ago. Last June, we came home to find the inside pane of one of the large glass side panels completely shattered. No-one was in the house at the time. About two weeks later another panel shattered in exactly the same fashion. Both panels went on relatively cool days, so heat excessive heat expansion could not be the cause. To date the company has replaced the two panels without question. However; last Sunday there was a terrific bang and we were horrified to find a third panel has shattered - again the inside pane on another relatively cool day and again, fortunately no-one was in the conservatory at the time. This time the site manager visited and has quibbled about the guarantee. He did not offer any kind of information, or have any idea as to the cause, other than 'it happens' - more than that, he seemed unwilling to undertake any investigation - not at all re-assuring. We are pushing to get the panel replaced under the guarantee, as we think it is down to impurities within the glass and is therefore clearly a manufacturing fault. We are not all reassured that it won't happen again. Each shattering has left a fine carpet of very sharp glass fragments on the floor, even though the panel has stayed intact in the frame. I am not reassured that it is not potentially dangerous to either us, or our pet dog who likes to soak up the warmth. We have asked for a full investigation, but it doesn't seem as though this will be forthcoming. I would be very interested to hear of other's experiences. Kind regards, Tony -- |
#37
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
"TonyB" wrote in message roups.com... replying to Dave Chapman , TonyB wrote: dave wrote: Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. Since our conservatory came with a 10 year warranty, we contacted the company, explained the problem to them, which they accepted without any fuss, and they then arranged for one of their fitters to come and replace the panel, which they did a couple of weeks later. All was fine for another six months then the inner glass of a different double-glazed panel shattered overnight in a similar way. The conmpany responded in exactly the same way and the new faulty panel was replaced under warranty. A couple of days ago we were sitting quietly in the conservatory when there was a loud bang and the inner glass of one of the other double-glazed roof panels exploded and loads of fragments of glass showered down around us. Now, for a third time, we have had to contact the company who, once again and without asking any questions, have ordered a new panel which will be installed during the next couple of weeks. Wen I spoke to the company I asked if this was a very common occurrence and was just told that 'yes, it happens'. Should I be reassured with that casual answer? Why has it always been the INNER of the panels that fails? Nothing can have dropped onto the conservatory roof from above and we don't play any hard-ball sports in the conservatory. All very strange. I've done a very close inspection of the structure of the conservatory, paying particular attention to the frames around the glass panels to see if any of them have become distorted but I haven't seen anything that could explain these three glass breakages. I'm grateful that the faulty panels have been replaced (to date) without any hassle from the company and at least I've got another seven years of warranty remaining so can hope that any manufacturing faults in the glass of the remaining panels will have come to light (pun intended!), one way or another, before that warranty expires. I've done a lot of Googling on the subject and discovered that spontaneous shattering of toughened glass panels for no obvious reason is very common, both in the UK and around the world. Sudden temperature changes don't seem to be the cause - the general view seems to be that it just happens sometimes. One explanation offered is that small impurities were in the glass during the tempering process and these can 'grow' over time (months or years) to a point when they cause the glass to shatter suddenly. I'd be very interested to hear the comments of anyone else in this NG who have experienced similar spontaneous shattering of double-glazed panels and how the suppliers of the faulty panels have reacted. ATB - Dave. Hi Dave, We have experienced exactly the same thing. We also have a conservatory from a major supplier, fitted just under 4 years ago. Last June, we came home to find the inside pane of one of the large glass side panels completely shattered. No-one was in the house at the time. About two weeks later another panel shattered in exactly the same fashion. Both panels went on relatively cool days, so heat excessive heat expansion could not be the cause. To date the company has replaced the two panels without question. However; last Sunday there was a terrific bang and we were horrified to find a third panel has shattered - again the inside pane on another relatively cool day and again, fortunately no-one was in the conservatory at the time. This time the site manager visited and has quibbled about the guarantee. He did not offer any kind of information, or have any idea as to the cause, other than 'it happens' - more than that, he seemed unwilling to undertake any investigation - not at all re-assuring. We are pushing to get the panel replaced under the guarantee, as we think it is down to impurities within the glass and is therefore clearly a manufacturing fault. We are not all reassured that it won't happen again. Each shattering has left a fine carpet of very sharp glass fragments on the floor, even though the panel has stayed intact in the frame. I am not reassured that it is not potentially dangerous to either us, or our pet dog who likes to soak up the warmth. We have asked for a full investigation, but it doesn't seem as though this will be forthcoming. I would be very interested to hear of other's experiences. Kind regards, Tony A good reason to have a conservatory built on dwarf walls. You only have the doors to worry about. I'm amazed about the roof panel. Only the lower panels need to be toughened glass. You might ask about this aspect. They are here as a safety thing, ie if someone/child accidently breaks one, less chnce of getting cut up. They are allegedly harder to break than normal glass. |
#38
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On Fri, 18 Jul 2014 09:45:39 +0100, harryagain wrote:
I'm amazed about the roof panel. Only the lower panels need to be toughened glass. You might ask about this aspect. Does seem odd. They are here as a safety thing, ie if someone/child accidently breaks one, less chnce of getting cut up. By falling/pushed against it. You don't want to do that with ordinary glass that breaks into loads of razor sharp daggers. You#ll stil get cuts from the toughend granuals but you won't sever arteries of ligaments. They are allegedly harder to break than normal glass. It's funny stuff toughed glass, it's understress all the time and when it goes it goes. The trigger can be pretty small, a nice sharp automatic centre punch can do it. But I've also witnessed a Special Effects guy having quite some difficulty shattering a toughed car windscreen. He started very cautious with gentle taps from a small hammer and cold chisel, end up with a lump hammer and really giving it some... -- Cheers Dave. |
#39
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 18/07/2014 14:04, Dave Liquorice wrote:
It's funny stuff toughed glass, it's understress all the time and when it goes it goes. The trigger can be pretty small, a nice sharp automatic centre punch can do it. But I've also witnessed a Special Effects guy having quite some difficulty shattering a toughed car windscreen. He started very cautious with gentle taps from a small hammer and cold chisel, end up with a lump hammer and really giving it some... That sounds more like a laminated screen, which is often 2 sheets of toughened glass with a sheet of plastic laminated in the middle. -- Tciao for Now! John. |
#40
Posted to uk.d-i-y
|
|||
|
|||
Spontaneous shattering of double glazed panels
On 17/07/2014 20:44, TonyB wrote:
replying to Dave Chapman , TonyB wrote: dave wrote: Hi all, We purchased an add-on conservatory from one of the large UK suppliers about four years ago and since then we have really enjoyed all of the benefits of a warm bright place to sit and relax even when the weather outside is far from ideal. However, our enjoyment has not been without its downside since one morning about 18 months ago when we went into the conservatory we noticed that the inner glass of one of the many double-glazed panels had shattered into 'a million' pieces for no obvious reason. Since our conservatory came with a 10 year warranty, we contacted the company, explained the problem to them, which they accepted without any fuss, and they then arranged for one of their fitters to come and replace the panel, which they did a couple of weeks later. All was fine for another six months then the inner glass of a different double-glazed panel shattered overnight in a similar way. The conmpany responded in exactly the same way and the new faulty panel was replaced under warranty. A couple of days ago we were sitting quietly in the conservatory when there was a loud bang and the inner glass of one of the other double-glazed roof panels exploded and loads of fragments of glass showered down around us. Now, for a third time, we have had to contact the company who, once again and without asking any questions, have ordered a new panel which will be installed during the next couple of weeks. Wen I spoke to the company I asked if this was a very common occurrence and was just told that 'yes, it happens'. Should I be reassured with that casual answer? Why has it always been the INNER of the panels that fails? Nothing can have dropped onto the conservatory roof from above and we don't play any hard-ball sports in the conservatory. All very strange. I've done a very close inspection of the structure of the conservatory, paying particular attention to the frames around the glass panels to see if any of them have become distorted but I haven't seen anything that could explain these three glass breakages. I'm grateful that the faulty panels have been replaced (to date) without any hassle from the company and at least I've got another seven years of warranty remaining so can hope that any manufacturing faults in the glass of the remaining panels will have come to light (pun intended!), one way or another, before that warranty expires. I've done a lot of Googling on the subject and discovered that spontaneous shattering of toughened glass panels for no obvious reason is very common, both in the UK and around the world. Sudden temperature changes don't seem to be the cause - the general view seems to be that it just happens sometimes. One explanation offered is that small impurities were in the glass during the tempering process and these can 'grow' over time (months or years) to a point when they cause the glass to shatter suddenly. I'd be very interested to hear the comments of anyone else in this NG who have experienced similar spontaneous shattering of double-glazed panels and how the suppliers of the faulty panels have reacted. ATB - Dave. Hi Dave, We have experienced exactly the same thing. We also have a conservatory from a major supplier, fitted just under 4 years ago. Last June, we came home to find the inside pane of one of the large glass side panels completely shattered. No-one was in the house at the time. About two weeks later another panel shattered in exactly the same fashion. Both panels went on relatively cool days, so heat excessive heat expansion could not be the cause. To date the company has replaced the two panels without question. However; last Sunday there was a terrific bang and we were horrified to find a third panel has shattered - again the inside pane on another relatively cool day and again, fortunately no-one was in the conservatory at the time. This time the site manager visited and has quibbled about the guarantee. He did not offer any kind of information, or have any idea as to the cause, other than 'it happens' - more than that, he seemed unwilling to undertake any investigation - not at all re-assuring. We are pushing to get the panel replaced under the guarantee, as we think it is down to impurities within the glass and is therefore clearly a manufacturing fault. We are not all reassured that it won't happen again. Each shattering has left a fine carpet of very sharp glass fragments on the floor, even though the panel has stayed intact in the frame. I am not reassured that it is not potentially dangerous to either us, or our pet dog who likes to soak up the warmth. We have asked for a full investigation, but it doesn't seem as though this will be forthcoming. I would be very interested to hear of other's experiences. Kind regards, Tony I have had this happen with my conservatory.... It turned out to be subsidence of the dwarf walls, and thus the frames were distorting, placing the glass under stress and then shattering. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Spontaneous shattering of patio door glass. | UK diy | |||
Double glazed panels | UK diy | |||
Double glazed panels | UK diy | |||
Arn't exterior double glazed | UK diy | |||
Replacing single glazed glass with Double Glazed - Wooden Windows | UK diy |