downlight installation problem

[sparkwright]

There may be other tin-work immediately above, crossing over. Possibly this may provide some support to 'hold it all together'.

You would be well advised to refer to the DIYnot BUILDING forum.

In future, before cutting the holes, always use a bradawl to make a pilot hole in the centre of the light position first, then make a hole in the 'corners' of the circle. Bad English, but you probably know what I mean.

 

[actionjackson]

Provided it IS gypframe , then its no big problem drilling through it , However I am a bit dubious as i have not seen it with a perforated edge, and the bottom does not look the same as the flange side, so i am not 100% convinced that it is gypframe. what does the other hole look like ? it might make it clearer.

Nick

Its this -

http://www.british-gypsum.com/produ..._profiles/gypframe_sound_insulating_bars.aspx

Neil

 

[sparkydude]

Yep it sure looks like it . In my oppinion drilling the rest of the metal out for that downlight will have no bearing on its functionality. One final thing to check before drilling it out is make sure there is no other structura above it that will get in the way of the downlights. Try using a bent coathanger and stick that up in the hole and feel around for anything, or a mirror and a torch.

Nick

 

[actionjackson]

Theres defiantly no restrictions above and i have adequate clearance around the hole (apart from the bar).

From all the poking around with extra long coat hangers (to route T&E) I'm sure the bars are mounted direct to the joists as the gap between the ceiling and joists is approx the same thickness of the bars and vice versa in the other direction.

 

[ban-all-sheds]

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• actionjackson
• 15 Oct 2010
• 2

If nothing else, have to say that's a nice neat hole.

Shame it indicates that you plan to install lights which are specifically designed to not light rooms....

 

[securespark]

But they'll light the void up beautifully, in a rainbow of colours!

 

[sparkwright]

Can you post some pictures and some of the more helpful members will sureley be able to help you , or go to another forum perhaps try searching for ultimate handyman they are a lot friendlier there

Nick

Cheers Nick

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• actionjackson
• 15 Oct 2010
• 2

What did you use to make this hole?

A regular hole saw would have a pilot drill in the centre which would
a) made a small hole in the tin which there isn't.
b) alerted you to the presence of the tin before you drilled right through the ceiling.

 

[actionjackson]

Can you post some pictures and some of the more helpful members will sureley be able to help you , or go to another forum perhaps try searching for ultimate handyman they are a lot friendlier there

Nick

Cheers Nick

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• actionjackson
• 15 Oct 2010
• 2

What did you use to make this hole?

A regular hole saw would have a pilot drill in the centre which would
a) made a small hole in the tin which there isn't.
b) alerted you to the presence of the tin before you drilled right through the ceiling.

The picture was taken at a slight angle. The tin is not quite centre of the hole so i didn't spot it until it was too late.

A regular hole saw was used.