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Thread: Draught from downlighters

  1. #1
    Regular Member GoldenWonder's Avatar
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    Default Draught from downlighters

    We had a small extension (single storey with pitched roof) put on our house, and inside had some of those recessed downlighters put in the ceiling.

    Thing is, you can feel cold air coming in through them! (except when they're on, and then they're very hot!) This means the room cools down quicker when the lights are off.

    I've had them out and they're the fire resistant type (sort of a 4-5 inch tube with vent holes at the end) Theres only access to the roof through the ceiling so I can't put those fire hood type of covers over them.

    Couple of questions: should I be getting a draught in the roof area anyway and can I do anything about the downlights? I gather you can't cover them with insulation (its all been pushed back in the roof)

    Now I'm aware of it, its doing my head in! All this money and I've got a colder room than the older existing ones!

  2. #2
    spoons
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    Havent got a clue, but that would do my head in as well...

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    Regular Member Gr4eme's Avatar
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    roof space should be ventilated so drought is normal..

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    Administrator Big-Pete's Avatar
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    Vehicle : Audi Q7

    Trim : S-Line Plus 245

    Engine : 3.0 TDV6

    Year : 2013

    Mileage : 3023

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    I think i'd change the Downlights from fire rated and fit normal downlights with seperate fire hoods as these are better suited to stop the cold air coming through, fitting of fire hoods is a very grey area (NICEIC's Technical Helplines words, not mine), You may not even need fire rated fittings as its a single storey extension (no living accommodation above) but it depends on the local planning office (many of who call the company I work for, for advice on such things as this)

    Ask at a local electrical wholesaler for FireCaps, they fit in seconds, you may also be able to remove the tubing from your fitting and still use these..
    or there's these ones, easy to fit through the existing downlight hole..
    Last edited by Big-Pete; 27th March 2009 at 20:55.

  5. #5
    Regular Member GoldenWonder's Avatar
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    Hmm cheers for the ideas - given me something to think about

    I looked at the firehoods, but they still have ventilation holes in them (I suppose they have to) so the air would still come in.

    As long as its normal to have a 'draught' in the loft.

    Daft really, with all the regulations about insulation etc, and you put downlights in and you have to rip it all out of the way. When money permits I might put normal lights back in! If SWMBO allows!

  6. #6
    On a Sabbatical VauxVeteran's Avatar
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    Try blowing some ciggy smoke at them, see if it's coming from the bulb or the outer case areas, if it's the case then a small smear of sealant should sort it out for you.

  7. #7
    Regular Member GoldenWonder's Avatar
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    Well the draught is defintely coming from the loft straight through the 'can' and out through the fitting, you can even feel the wind standing underneath them (its windy up north today!)

    I've blocked the holes at the end of the can with intumescent silicon - hopefully this stops the draught and only threatens to shorten the lifetime of the bulb. After all, the lights are off 95% of the time!

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