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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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TRIVIA: the logic of icicles
What's the logic behind this? --
I'm in a semi-detached. I have about a foot of insulation in our loft by now. I'm willing to bet that my neighbour has 3" or 4" at best. On the front of the houses (SOUTH facing) I have loads of icicles: neighbour has none. On the back of the houses (north facing) (yes I know you could have worked that out but I wanted to emphasise that the houses are *directly* on an east-west axis), he has LOADS of icicles, and I have virtually none. I can't work out what's going on, icicle-forming-wise. The roofs, by the way, are respectively heavily covered (mine) and more lightly covered (his). Cheers John |
#2
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TRIVIA: the logic of icicles
"John L" wrote in message ... What's the logic behind this? -- I'm in a semi-detached. I have about a foot of insulation in our loft by now. I'm willing to bet that my neighbour has 3" or 4" at best. On the front of the houses (SOUTH facing) I have loads of icicles: neighbour has none. On the back of the houses (north facing) (yes I know you could have worked that out but I wanted to emphasise that the houses are *directly* on an east-west axis), he has LOADS of icicles, and I have virtually none. I can't work out what's going on, icicle-forming-wise. The roofs, by the way, are respectively heavily covered (mine) and more lightly covered (his). Cheers John This may seem obvious but You have no icicles at the back because there has been no thawing on that face You have icicles at the front because you have some thawing on that face Neighbour has icicles at the back as some thawing on that face (heat loss from inside) Neighbour has no icicles at the front as lots of thawing due to heat loss and external warming) so no re-freezing on that face Tony |
#3
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TRIVIA: the logic of icicles
On Wed, 06 Jan 2010 15:56:47 +0000, TMC wrote:
You have no icicles at the back because there has been no thawing on that face You have icicles at the front because you have some thawing on that face Neighbour has icicles at the back as some thawing on that face (heat loss from inside) Agreed. Not necessarily heat loss, either; I've seen recommendations to reduce the amount of insulation at the edges in the roof-space, because too much can keep that portion of the roof above too warm and promote thawing (and then freezing). A lot of ice weight can do quite a bit of damage... |
#4
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TRIVIA: the logic of icicles
On 6 Jan, 15:45, John L wrote:
What's the logic behind this? -- I'm in a semi-detached. I have about a foot of insulation in our loft by now. I'm willing to bet that my neighbour has 3" or 4" at best. * On the front of the houses (SOUTH facing) I have loads of icicles: neighbour has none. *On the back of the houses (north facing) *(yes I know you could have worked that out but I wanted to emphasise that the houses are *directly* on an east-west axis), he has LOADS of icicles, and I have virtually none. I can't work out what's going on, icicle-forming-wise. *The roofs, by the way, are respectively heavily covered (mine) and more lightly covered (his). Cheers John Your gutter leaks at the front and your neighbours leaks at the back. Simples |
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