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#1
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creeping gutters again...
Getting fed up with (and increasingly not fit to deal with) plastic gutter
that parts at the joints after every summer, no matter how hard the clips seem to hold it in place. Luckily it seems to be the lower sections that seem to move most, so I can at least reach them when fit enough, but is there some sort of non slip brace that can bridge the joints? Could I just drill and wire them or would this crack the plastic when it tried to creep again? S |
#2
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creeping gutters again...
On Oct 1, 10:47 am, "Spamlet" wrote:
Getting fed up with (and increasingly not fit to deal with) plastic gutter that parts at the joints after every summer, no matter how hard the clips seem to hold it in place. Luckily it seems to be the lower sections that seem to move most, so I can at least reach them when fit enough, but is there some sort of non slip brace that can bridge the joints? Could I just drill and wire them or would this crack the plastic when it tried to creep again? I just drill mine and put a stainless steel screw and nut in. Of course there are expansion joints at the ends but the gutter would rather pull apart at the glued joins .. |
#3
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creeping gutters again...
On Thu, 30 Sep 2010 23:47:44 +0100, Spamlet wrote:
Getting fed up with (and increasingly not fit to deal with) plastic gutter that parts at the joints after every summer, no matter how hard the clips seem to hold it in place. Sounds like it's expanding in the warmer months, and then when the cold comes it's not able to contract and slide as it should - maybe one of the supports toward the end of the run is damaged, misaligned, jammed by dirt etc.? It can probably be sorted out "properly" - or you can probably get away with screwing it together at the joints where it usually parts, and hopefully force it into behaving properly :-) cheers Jules |
#4
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creeping gutters again...
"Jules Richardson" wrote in message ... On Thu, 30 Sep 2010 23:47:44 +0100, Spamlet wrote: Getting fed up with (and increasingly not fit to deal with) plastic gutter that parts at the joints after every summer, no matter how hard the clips seem to hold it in place. Sounds like it's expanding in the warmer months, and then when the cold comes it's not able to contract and slide as it should - maybe one of the supports toward the end of the run is damaged, misaligned, jammed by dirt etc.? It can probably be sorted out "properly" - or you can probably get away with screwing it together at the joints where it usually parts, and hopefully force it into behaving properly :-) cheers Jules Thank's Jules, I'm afraid the guttering was put in by a bunch of roofers who were not exactly the most conscienscious of folk as it turned out, and after an outlay of several thousands to fix the roof up properly a few years back, the whole roof really needs retiling properly 'again'. So, twas they that fixed the gutters, and I count myself lucky that it seems to be just the lower ones where the clip joints just will not stay together. I've clamped them back with knuckle-breaking force several years in a row now, but come the Autumn, they are always apart again and the joins are conveniently over the front and back doors:-( I think if Matty has got away with bolts that is probably the way to go, or perhaps another job for my old standby, stainless coathanger wire. Cheers to you and he, S |
#5
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creeping gutters again...
Spamlet wrote:
"Jules Richardson" wrote in message ... On Thu, 30 Sep 2010 23:47:44 +0100, Spamlet wrote: Getting fed up with (and increasingly not fit to deal with) plastic gutter that parts at the joints after every summer, no matter how hard the clips seem to hold it in place. Sounds like it's expanding in the warmer months, and then when the cold comes it's not able to contract and slide as it should - maybe one of the supports toward the end of the run is damaged, misaligned, jammed by dirt etc.? It can probably be sorted out "properly" - or you can probably get away with screwing it together at the joints where it usually parts, and hopefully force it into behaving properly :-) cheers Jules Thank's Jules, I'm afraid the guttering was put in by a bunch of roofers who were not exactly the most conscienscious of folk as it turned out, and after an outlay of several thousands to fix the roof up properly a few years back, the whole roof really needs retiling properly 'again'. So, twas they that fixed the gutters, and I count myself lucky that it seems to be just the lower ones where the clip joints just will not stay together. I've clamped them back with knuckle-breaking force several years in a row now, but come the Autumn, they are always apart again and the joins are conveniently over the front and back doors:-( I think if Matty has got away with bolts that is probably the way to go, or perhaps another job for my old standby, stainless coathanger wire. Cheers to you and he, S You can't force plastic to do your bidding - it's going to expand and contract whether you like it or not. The problem usually lies in the length of guttering used - they are often supplied in 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter, what you need is shorter lengths and more joints, thus giving the guttering more space to expand and contract into, so the solution lies in cutting your guttering at 2 or 2.5m intervals and installing extra jointers. Black and brown guttering is much worse behaved than white due to heat absorption, but white is often a lot more expensive, probably for this reason. -- Phil L RSRL Tipster Of The Year 2008 |
#6
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creeping gutters again...
Phil L wrote:
The problem usually lies in the length of guttering used - they are often supplied in 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, still got be be allowed for but 4" would be a but difficult to handle. |
#7
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creeping gutters again...
Andy Burns wrote:
Phil L wrote: The problem usually lies in the length of guttering used - they are often supplied in 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, still got be be allowed for but 4" would be a but difficult to handle. Tats sounds about right. Problem is that after a few +- 12mm it works its way to one end and falls out! |
#8
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creeping gutters again...
"Phil L" wrote in message ... Spamlet wrote: "Jules Richardson" wrote in message ... On Thu, 30 Sep 2010 23:47:44 +0100, Spamlet wrote: Getting fed up with (and increasingly not fit to deal with) plastic gutter that parts at the joints after every summer, no matter how hard the clips seem to hold it in place. Sounds like it's expanding in the warmer months, and then when the cold comes it's not able to contract and slide as it should - maybe one of the supports toward the end of the run is damaged, misaligned, jammed by dirt etc.? It can probably be sorted out "properly" - or you can probably get away with screwing it together at the joints where it usually parts, and hopefully force it into behaving properly :-) cheers Jules Thank's Jules, I'm afraid the guttering was put in by a bunch of roofers who were not exactly the most conscienscious of folk as it turned out, and after an outlay of several thousands to fix the roof up properly a few years back, the whole roof really needs retiling properly 'again'. So, twas they that fixed the gutters, and I count myself lucky that it seems to be just the lower ones where the clip joints just will not stay together. I've clamped them back with knuckle-breaking force several years in a row now, but come the Autumn, they are always apart again and the joins are conveniently over the front and back doors:-( I think if Matty has got away with bolts that is probably the way to go, or perhaps another job for my old standby, stainless coathanger wire. Cheers to you and he, S You can't force plastic to do your bidding - it's going to expand and contract whether you like it or not. The problem usually lies in the length of guttering used - they are often supplied in 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter, what you need is shorter lengths and more joints, thus giving the guttering more space to expand and contract into, so the solution lies in cutting your guttering at 2 or 2.5m intervals and installing extra jointers. Black and brown guttering is much worse behaved than white due to heat absorption, but white is often a lot more expensive, probably for this reason. -- Phil L RSRL Tipster Of The Year 2008 Good points, thanks Phil. Seems, counter-intuitive, that several short bits don't add up to one long bit as it were! My old ones were asbestos and painted up a treat with no expansion (only sparrows nests but we don't have sparrows any more!) S |
#9
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creeping gutters again...
"Andy Burns" wrote in message o.uk... Phil L wrote: The problem usually lies in the length of guttering used - they are often supplied in 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, still got be be allowed for but 4" would be a but difficult to handle. I think it's not so much the expansion all in one go, but, rather like carpet creep, it moves one way and then doesn't move back, then moves a bit more the next.day etc. And, thinking about it I can now imagine why: The gutter is clamped down onto the rubber seals, but once it shrinks the rubber will pop up again and stop it moving back when it expands the next day. By which token, fitting in the winter might help. More to this than meets the eye (as usual :-) S |
#10
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creeping gutters again...
"The Natural Philosopher" wrote in message ... Andy Burns wrote: Phil L wrote: The problem usually lies in the length of guttering used - they are often supplied in 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, still got be be allowed for but 4" would be a but difficult to handle. Tats sounds about right. Problem is that after a few +- 12mm it works its way to one end and falls out! Indeed it does - shame I can't sew it down like I did the carpet :-) S |
#11
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creeping gutters again...
On Fri, 01 Oct 2010 16:39:07 +0100, The Natural Philosopher wrote:
4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, Tats sounds about right. Problem is that after a few +- 12mm it works its way to one end and falls out! The joints should slip and slide along the length, maybe they just need cleaning and smear of silicone grease. While you are at check any intermediate brackets as well, maybe s smear on them as well. The joints shouldn't be installed jamed up tight either but with a bit of gap to allow for movement. -- Cheers Dave. |
#12
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creeping gutters again...
Spamlet wrote:
"Jules Richardson" wrote in message ... On Thu, 30 Sep 2010 23:47:44 +0100, Spamlet wrote: Getting fed up with (and increasingly not fit to deal with) plastic gutter that parts at the joints after every summer, no matter how hard the clips seem to hold it in place. Sounds like it's expanding in the warmer months, and then when the cold comes it's not able to contract and slide as it should - maybe one of the supports toward the end of the run is damaged, misaligned, jammed by dirt etc.? It can probably be sorted out "properly" - or you can probably get away with screwing it together at the joints where it usually parts, and hopefully force it into behaving properly :-) cheers Jules Thank's Jules, I'm afraid the guttering was put in by a bunch of roofers who were not exactly the most conscienscious of folk as it turned out, and after an outlay of several thousands to fix the roof up properly a few years back, the whole roof really needs retiling properly 'again'. So, twas they that fixed the gutters, and I count myself lucky that it seems to be just the lower ones where the clip joints just will not stay together. Sounds like it wasnt installed properly. It rarely is IME, I sort loads of it out. Guttering expands & contracts with temperature change as Jules said. Inside each joiner or fitting is a mark about halfway in and when its fitted the end of the gutter is supposed to be aligned with that mark. If its pushed right in the gutter can buckle upwards in the heat or if not pushed in enough it will slip out. Nobody though seems to take acount of the ambient temperature when installing it. For example, if installed on a hot day and not pushed quite up to the mark it can contract enough o come out. I've clamped them back with knuckle-breaking force several years in a row now, but come the Autumn, they are always apart again and the joins are conveniently over the front and back doors:-( Uncanny that - they always seem to be :-) You need to check each joint & fitting to make sure all the gutter touches the mark. I've had to add extra lengths to stop it popping. Find the shortest run & replace that length with a slightly longer piece. I think if Matty has got away with bolts that is probably the way to go, or perhaps another job for my old standby, stainless coathanger wire. If you bolt it together you are stopping the ability to expand/contract. -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
#13
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creeping gutters again...
Andy Burns wrote:
Phil L wrote: The problem usually lies in the length of guttering used - they are often supplied in 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, still got be be allowed for but 4" would be a but difficult to handle. I don't doubt you have the figures right, but experience tells me to agree with Phil. -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
#14
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creeping gutters again...
Spamlet wrote:
"The Natural Philosopher" wrote in message ... Andy Burns wrote: Phil L wrote: The problem usually lies in the length of guttering used - they are often supplied in 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, still got be be allowed for but 4" would be a but difficult to handle. Tats sounds about right. Problem is that after a few +- 12mm it works its way to one end and falls out! Indeed it does - shame I can't sew it down like I did the carpet :-) course you can. What is pvc cement for? Lock one end of a long run and let the other end do the slidey bit. FFS you could probably cement the whole lot together anyway. I've done that is some of my pushfit downpipes cos they kept falling apart.. S |
#15
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creeping gutters again...
Dave Liquorice wrote:
On Fri, 01 Oct 2010 16:39:07 +0100, The Natural Philosopher wrote: 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, Tats sounds about right. Problem is that after a few +- 12mm it works its way to one end and falls out! The joints should slip and slide along the length, maybe they just need cleaning and smear of silicone grease. While you are at check any intermediate brackets as well, maybe s smear on them as well. The joints shouldn't be installed jamed up tight either but with a bit of gap to allow for movement. Nah. glue em all up solid and let the support brackets do the slidey bit I say! |
#16
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creeping gutters again...
On Oct 2, 7:23 am, "The Medway Handyman" davidl...@no-spam-
blueyonder.co.uk wrote: Nobody though seems to take acount of the ambient temperature when installing it. For example, if installed on a hot day and not pushed quite up to the mark it can contract enough o come out. All the expansion joints in the gutter that we recently installed had a scale with temperatures on them. I think if Matty has got away with bolts that is probably the way to go, or perhaps another job for my old standby, stainless coathanger wire. If you bolt it together you are stopping the ability to expand/contract. I bolt mine together at the joins that are not supposed to expand/ contract. A joiner about 15 mm wide is glued but the glue doesn't hold. |
#17
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creeping gutters again...
Matty F wrote:
On Oct 2, 7:23 am, "The Medway Handyman" davidl...@no-spam- blueyonder.co.uk wrote: Nobody though seems to take acount of the ambient temperature when installing it. For example, if installed on a hot day and not pushed quite up to the mark it can contract enough o come out. All the expansion joints in the gutter that we recently installed had a scale with temperatures on them. Never seen that before, what a good idea. NZ seems to have the edge over GB when it comes to gutters. -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
#18
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creeping gutters again...
"The Natural Philosopher" wrote in message ... Dave Liquorice wrote: On Fri, 01 Oct 2010 16:39:07 +0100, The Natural Philosopher wrote: 4 or 5 metre lengths, IMV this is way too long to be used in one piece as it will contract by up to 100mm if put up in summer and expand by the same amount if put up in winter That doesn't sound right, coefficient of expansion for PVC is approx 0.05 mm/m/C so a 5m length even over a 50C temperature range, would only expand by about 12mm, Tats sounds about right. Problem is that after a few +- 12mm it works its way to one end and falls out! The joints should slip and slide along the length, maybe they just need cleaning and smear of silicone grease. While you are at check any intermediate brackets as well, maybe s smear on them as well. The joints shouldn't be installed jamed up tight either but with a bit of gap to allow for movement. Nah. glue em all up solid and let the support brackets do the slidey bit I say! That sounds more like it: but then why do they come with these fiddly clips and rubber seals? S |
#19
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creeping gutters again...
On Oct 3, 5:29 am, "The Medway Handyman" davidl...@no-spam-
blueyonder.co.uk wrote: Matty F wrote: On Oct 2, 7:23 am, "The Medway Handyman" davidl...@no-spam- blueyonder.co.uk wrote: Nobody though seems to take acount of the ambient temperature when installing it. For example, if installed on a hot day and not pushed quite up to the mark it can contract enough o come out. All the expansion joints in the gutter that we recently installed had a scale with temperatures on them. Never seen that before, what a good idea. NZ seems to have the edge over GB when it comes to gutters. Here's the start of the gutter installation. http://i53.tinypic.com/2ztayw4.jpg The outlet on the plank is the one with the temperature scale on it. We have used external brackets because there's an enormous amount of leaves falling in the gutter and it's easier to clean out without brackets in the way. Note the plank is sitting on brackets that attach to bolts that protrude all around the hut, which is great for the high side of the hut: http://i52.tinypic.com/d8ztz.jpg Note also the solar water heater on the roof. The water from the gutter is electrically pumped to a huge water tank up the hill. So, free hot water. |
#20
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creeping gutters again...
Matty F wrote:
On Oct 3, 5:29 am, "The Medway Handyman" davidl...@no-spam- blueyonder.co.uk wrote: Matty F wrote: On Oct 2, 7:23 am, "The Medway Handyman" davidl...@no-spam- blueyonder.co.uk wrote: Nobody though seems to take acount of the ambient temperature when installing it. For example, if installed on a hot day and not pushed quite up to the mark it can contract enough o come out. All the expansion joints in the gutter that we recently installed had a scale with temperatures on them. Never seen that before, what a good idea. NZ seems to have the edge over GB when it comes to gutters. Here's the start of the gutter installation. http://i53.tinypic.com/2ztayw4.jpg The outlet on the plank is the one with the temperature scale on it. We have used external brackets because there's an enormous amount of leaves falling in the gutter and it's easier to clean out without brackets in the way. Only ever seen external brackets over here. What do internal look like? -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
#21
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creeping gutters again...
On Oct 4, 6:46 am, "The Medway Handyman" davidl...@no-spam-
blueyonder.co.uk wrote: Matty F wrote: On Oct 3, 5:29 am, "The Medway Handyman" davidl...@no-spam- blueyonder.co.uk wrote: Matty F wrote: On Oct 2, 7:23 am, "The Medway Handyman" davidl...@no-spam- blueyonder.co.uk wrote: Nobody though seems to take acount of the ambient temperature when installing it. For example, if installed on a hot day and not pushed quite up to the mark it can contract enough o come out. All the expansion joints in the gutter that we recently installed had a scale with temperatures on them. Never seen that before, what a good idea. NZ seems to have the edge over GB when it comes to gutters. Here's the start of the gutter installation. http://i53.tinypic.com/2ztayw4.jpg The outlet on the plank is the one with the temperature scale on it. We have used external brackets because there's an enormous amount of leaves falling in the gutter and it's easier to clean out without brackets in the way. Only ever seen external brackets over here. What do internal look like? Here's an installation guide: http://www.mitre10.co.nz/how_to_guid...fm?sect ion=6 The brackets are straight and the gutters hook over and clip on. I prefer the internal brackets. They are stronger for leaning ladders against, and the brackets can't be seen from the gound so the gutters have an uncluttered look. |
#22
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creeping gutters again...
On Fri, 01 Oct 2010 16:04:52 -0700, Matty F wrote:
On Oct 2, 7:23 am, "The Medway Handyman" davidl...@no-spam- blueyonder.co.uk wrote: Nobody though seems to take acount of the ambient temperature when installing it. For example, if installed on a hot day and not pushed quite up to the mark it can contract enough o come out. All the expansion joints in the gutter that we recently installed had a scale with temperatures on them. For mine, it was actually on the 'collector' part that sits between the gutter and downspout - it had a lines showing different expansion factors for different lengths of guttering and temperature ranges. Buggered if I could make sense of it, though, so I just winged* it :-) * I did wait for an "average" day and then centred the hole in the gutter, plus made sure that the ends of each 12' piece were a sensible distance from the support brackets. Oh very few houses here bother to collect roof run-off into any kind of drainage system / soakaway - people just let it spill from the downspout straight onto the surrounding ground. I don't recall ever seeing that in any other country. cheers Jules |
#23
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creeping gutters again...
On Sun, 03 Oct 2010 14:28:06 -0700, Matty F wrote:
Only ever seen external brackets over here. What do internal look like? Here's an installation guide: http://www.mitre10.co.nz/how_to_guides/exterior/ how_to_install_pvc_spouting_and_downpipes.cfm?sect ion=6 The brackets are straight and the gutters hook over and clip on. I prefer the internal brackets. They are stronger for leaning ladders against, and the brackets can't be seen from the gound so the gutters have an uncluttered look. I've only ever seen internal ones here. I had metal ones last year, and ice build-up in winter tore the whole lot down - the supplied fixing screws snapped where they attached to the fascia. I've replaced with plastic ones this year and will see how that goes. I think the problem with the metal ones was that they had a U-shaped portion, so the fixing screws went through metal, then an inch or so of gap, then more metal; under severe load the U-shaped portion would distort and make the screw go slack, at which point the whole gutter was able to twist and snap the screws. With the plastic ones, the screw just goes through a big lump of plastic, so the gutter should remain clamped tight to the house even under extreme load. cheers Jules |
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