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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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Ceiling - enough strength?
A month ago I bought a ceiling fan, and replaced the light above the bed in
the master bedroom with it. This worked fine. I purchased a second fan today and planned to replace the light in the second bedboom. However, after taking the little plastic fitting for the traditional bulb and lampshade type fitting (dunno the name!), I realised that there's no proper wood for me to screw the header of the fan into, as there is in the master bedroom. It appears the plaster is held against some thing slats, which cannot be screwed into... well they can kind of, I tried it, put the base up, which immediately pulled down, along with some plaster. How should I affix this five or so kilogram ceiling fan? SAFELY? So far all I can think of is laying a plank of wood across the ceiling (in the attic!) and then screwing through the plaster again and affixing the mounting to the plank. This sounds the easiest so far. What is a better idea? |
#2
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Ceiling - enough strength?
X X
X X X BBBBBBX X BBBBBBX X X X X Basically you want to put a baton between the joists. Then screw into the new baton -- SantaUK Mail me at: arjf (ng) zzvyyne (qbg) pb (qbg) hx === ROT13 Use http://andrewu.co.uk/tools/rot13/ to convert to readable format "NorwichLad" wrote in message ... A month ago I bought a ceiling fan, and replaced the light above the bed in the master bedroom with it. This worked fine. I purchased a second fan today and planned to replace the light in the second bedboom. However, after taking the little plastic fitting for the traditional bulb and lampshade type fitting (dunno the name!), I realised that there's no proper wood for me to screw the header of the fan into, as there is in the master bedroom. It appears the plaster is held against some thing slats, which cannot be screwed into... well they can kind of, I tried it, put the base up, which immediately pulled down, along with some plaster. How should I affix this five or so kilogram ceiling fan? SAFELY? So far all I can think of is laying a plank of wood across the ceiling (in the attic!) and then screwing through the plaster again and affixing the mounting to the plank. This sounds the easiest so far. What is a better idea? |
#3
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Ceiling - enough strength?
In article ,
BigWallop wrote: Springs Toggle fixings or plasterboard fixings: Don't think those are adequate for a 5kg wobbling load into a lath and plaster ceiling. It either has to be fixed to a joist if one is convenient, or a noggin or two added from above if not. -- *The severity of the itch is proportional to the reach * Dave Plowman London SW 12 RIP Acorn |
#4
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Ceiling - enough strength?
BigWallop wrote:
Springs Toggle fixings or plasterboard fixings: http://www.rawl.co.uk/Products/lightmain/cavity.htm should do the trick. [a] They're completely useless on lath and plaster, which is what the OP has. [b] Even if it was PB, I still wouldn't want to hang a big vibrating fan on them, because they will eventually fail. -- Grunff |
#5
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Ceiling - enough strength?
In article ,
tim wrote: [b] Even if it was PB, I still wouldn't want to hang a big vibrating fan on them, because they will eventually fail. I think you mean that the PB will eventually fail. They (the fixings) will fail. Doesn't really matter how they fail but that they will. -- *Why is the word abbreviation so long? Dave Plowman London SW 12 RIP Acorn |
#6
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Ceiling - enough strength?
"NorwichLad" wrote in message ... thanks folks i'll put some strong wood across the joists :-) |
#7
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Ceiling - enough strength?
On Mon, 4 Aug 2003 00:12:13 +0100, "L Reid"
wrote: They (the fixings) will fail. Doesn't really matter how they fail but that they will. So how much weight can these things hold? I've put some shelves up using them, and am now concerned they're gonna fall down onto my head! Been up for a few years now though and don't appear to have moved. Don't worry - the use here was for hanging something from a ceiling rather than a wall, and the loading is rather different in each case. Regards, Colin Swan Nildram Operations |
#8
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Ceiling - enough strength?
In article ,
L Reid wrote: They (the fixings) will fail. Doesn't really matter how they fail but that they will. So how much weight can these things hold? I've put some shelves up using them, and am now concerned they're gonna fall down onto my head! Been up for a few years now though and don't appear to have moved. Shelves are a static load. A fan will shake the fixings which I reckon makes them much more critical. If you've used toggle or butterfly fixings into lath and plaster, I'd guess it would make a difference how near the studs they were too. -- *A day without sunshine is like... night. Dave Plowman London SW 12 RIP Acorn |
#9
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Ceiling - enough strength?
So how much weight can these things hold? I've put some shelves
up using them, and am now concerned they're gonna fall down onto my head! Been up for a few years now though and don't appear to have moved. When used on a wall, the load is transferred into the plasterboard in compression right down the whole length, which plasterboard is good at resisting. When used on a ceiling, large bending loads are applied, which plasterboard is very bad at. Think of a straight drinking straw cut in half. It can support quite a load if you stand it up and press carefully right down. However, if you lay it on its sides, supported at the ends and push down, it has only a tiny fraction of the strength. Christian. |
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