Lamp fell down from plaster ceiling, why?

[MultiMan]

Calypso has been recalled because it could fall for other reasons: https://www.ikea.com/ms/sv_SE/important_info/recall.html but you apparently preempted that.

 

[tergo]

In 1981 it might have been 9mm gypsum board 600 mm width
at that time there were both 13 and 9 mm gypsum

 

[roli]

In the overview image, it looks like "gipsplank" but in the detailed image, it seems to be a lower-quality material. How thick are the boards? You should be able to get a measurement now that the molly plug has gone through. If it is "gipsplank," the thickness should be around 13 mm. Gipsplank is also made from a "harder" gypsum than regular wallboards, so if it is gipsplank, a lamp weighing 2.5 kg should not fall down, although heat from the lamp might make the board more brittle, but that shouldn't be an issue. However, you mustn't "over-tighten" a molly or equivalent product. Regardless of the ceiling material, there is some type of wood material that the boards are attached to. Whether it's slats, boards, or beams is hard to say; it could be any of them. But if you attach the screw hook to one of these (as has already been mentioned), the lamp should stay up.

Edit: Apparently, there are also thinner gipsplank... according to previous posts.

 

[Stefan1972]

I think it looks more like the screw was too long and pressed against something above, and at the same time when you tightened and compressed the thing, you pressed everything downwards.

 

[Servicesnickare]

I think it sounds hollow when you knock on it.

I have mostly assumed that it is plasterboard.

Here is another picture of the ceiling
[image]
Don't the seams indicate that it is plasterboard in the ceiling?

The house is from 1981 if that can be a clue to what it is.

It could very well be asbestos boards, they look very similar but harder and thinner than usual 13 mm plasterboard, usually nailed up on battens.

 

[Stefan N]

But calm down now.......

 

[Magnus Brange]

Thank you for all the responses!

I've looked more into the hole now.
The material is white all the way through, except for the cardboard.
The hole is shaped after the molly plug's "back legs", mostly the cardboard has been torn up, though it has taken a bit of the material with it.

I think more it looks like the screw was too long and pressed against something above and while tightening and compressing the thing it pushed everything downwards.

The hook doesn't seem to go into anything above at least.
However, I can imagine that I have tightened the molly plug too hard. I used a molly pliers to assemble it and pressed quite hard.

Instead of gypsum expander (molly) I believe this is a safer option if you can't find any wood to screw into..
[link]

I will look into these!

Calypso was withdrawn because it could fall for other reasons: [link] but you obviously anticipated it.

Thanks! But I know. The one that fell down was not part of that series. But the other one we have upstairs is...

Here are two new pictures


Someone mentioned something about asbestos boards. I highly doubt that, as it was more or less forbidden to use by 1981?

 

[Rabbithole]

Looks like you've just tightened it too much so it's basically just been hanging in the pappen.

 

[Asbesträdd]

Someone wrote something about asbestos boards. I strongly doubt that, as it was more or less banned from use by 1981?

No asbestos in plasterboards, especially not when it's from -81.

 

[minuterna]

How did you solve this Magnus? My ceiling looks the same and I'm trying to avoid falling lamps.

 

[Magnus Brange]

How did you solve this Magnus? My ceiling looks the same, and I would like to avoid falling lamps

Where the lamp fell down, I replaced it with one that weighs about 0 but also had three screw holes, managed to hit a beam in the ceiling with one of the three holes, so it's secure and stable.

But for other lamps in the house, I've used a type of board plug where an arm unfolds on the back.

But in hindsight, I think a regular drywall anchor/Molly works well; I realized I tightened them too hard with the Molly tool.

My latest purchase of board plugs is Essve Duck Foot, haven't tested them yet, but they seem promising.

 

[A-Man_08]

In the place where the lamp fell down, I replaced it with one that not only weighs about 0 but also had three screw holes; I managed to hit a beam in the ceiling with one of the three holes, so it sits securely and well.

However, the other lamps in the house I have installed with a type of drywall plug where an arm unfolds on the backside.

But in hindsight, I think a regular drywall anchor/Molly works well; I realized I pulled them too tight with the Molly tool.

My latest purchase of drywall plug is Essve Duck Foot, haven't tested them yet, but they seem promising.

The wings are completely flat; it's been tightened too hard.

 

[A-Man_08]

Where there was a hole, what is behind it, did you cut away and put in a new sheet?

 

[Magnus Brange]

Where there was a hole what is behind, did you cut away and put in a new board?

Just put a new light over...

 

[Myrkebab]

Looks like a bad type of molly plug. Very short wings. They are usually at least 20mm longer. This distributes the load over a larger area. You've probably come right between the studs. I would guess you have a stud right between the visible phases. If you tap around a bit, you can usually hear where it sounds more solid. Test drill with a small bit to see if you hit wood. If it fails, you can just fill the hole with some soft sealant.