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Old 08.01.2020, 13:26
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What's this stuff?

So, I was wondering what was above the ceiling in my kitchen and decided to hit the ceiling repeatedly with a hammer until I made a hole.

I was wondering kind of insulation what material this was behind the plaster? Anyone know? I thought it could be particle board, but the material seems more uniform than the usual particle board I've seen before.

Also, anyone know of an efficient way to cut through this material and the plaster at the same time to create a bigger hole? Hammering at the ceiling is rather tiresome...

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Old 08.01.2020, 14:09
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Re: What's this stuff?

I do that too, from time to time, hammering stuff that is...
Judging by the look of it, it can be old, so please wear a mask and be cautious: formaldehyde can be 'exuding' from these types of old chipboards. Especially since you have hammered a hole where the food is cooked.
I would use a conventional saw to remove it, but would seal the room and wear extra protective gear to avoid breathing in whatever other stuff can be in them: tar, glue, etc. But you know this already...
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Old 08.01.2020, 14:12
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Re: What's this stuff?

The installer ran out of the regular material, and in a pinch used the fill from the hamster cage?

Interesting hobby, smashing holes in the ceiling just to see what's there.
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Old 08.01.2020, 14:14
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Re: What's this stuff?

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The installer ran out of the regular material, and in a pinch used the fill from the hamster cage?
honestly, i thought it was straw at first as the pieces were coming out individually...

Last edited by Phil_MCR; 08.01.2020 at 14:31.
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Old 08.01.2020, 14:19
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Re: What's this stuff?

You... thought it was a good idea to hit the ceiling with a hammer, just to see what was there??
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Old 08.01.2020, 14:25
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Re: What's this stuff?

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You... thought it was a good idea to hit the ceiling with a hammer, just to see what was there??
Well...thankgod it was just the ceiling.
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Old 08.01.2020, 14:26
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Re: What's this stuff?

Just hitting things randomly to see what happens, he must really be from the UK.
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Old 08.01.2020, 14:46
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Re: What's this stuff?

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Just hitting things randomly to see what happens, he must really be from the UK.
It´s what is known as "percussive factfinding" a part of the "perucssive maintenance cycle"
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Old 08.01.2020, 14:53
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Re: What's this stuff?

Depending on the age of the building, it could be asbestos.......be careful there!!!

https://images.app.goo.gl/ussQ1RpCrU9Aiqqn6

found the pic on sanier.de


And here's a (albeit German) flyer from SUVA in regards to the topic of Asbestos in buildings

http://www.schadstoff-sanierung.ch/f...t-erkennen.pdf
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Old 08.01.2020, 15:01
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Re: What's this stuff?

That looks like plaster covered chip board to me.
I'd use a jigsaw or similar reciprocating powered saw providing I know exactly what is / is not in the path of the hole you intend to cut.
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Old 08.01.2020, 15:16
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Re: What's this stuff?

It´s actually Zementgebundene Holzwolle, (cement bound wood wool) used mainly as a lightweight covering. Heraklit has it if you want more.
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Old 08.01.2020, 15:31
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Re: What's this stuff?

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Just hitting things randomly to see what happens, he must really be from the UK.
Or he could be a Trump fan!
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Old 08.01.2020, 15:36
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Re: What's this stuff?

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Depending on the age of the building, it could be asbestos.......be careful there!!!
My first thought as well.

Tom
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Old 08.01.2020, 15:37
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Re: What's this stuff?

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That looks like plaster covered chip board to me.
I'd use a jigsaw or similar reciprocating powered saw providing I know exactly what is / is not in the path of the hole you intend to cut.
In case of no jigsaw you can drill all around it, optionally leaving space between the holes to later hit it with a hammer.
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Old 08.01.2020, 16:49
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Re: What's this stuff?

Try burning some and see how easily it ignites and what It smells like.

Reciprocating saw for rapid removal.


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I was wondering kind of insulation what material this was behind the plaster? Anyone know? I thought it could be particle board, but the material seems more uniform than the usual particle board I've seen before.

Also, anyone know of an efficient way to cut through this material and the plaster at the same time to create a bigger hole? Hammering at the ceiling is rather tiresome...

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Old 08.01.2020, 17:00
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Re: What's this stuff?

“A knowledgeable person without a curious mind is like poetry without essence.”
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Old 08.01.2020, 17:02
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Re: What's this stuff?

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“A knowledgeable person without a curious mind is like poetry without essence.”
Essence must be the asbestos part.
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Old 08.01.2020, 17:09
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Re: What's this stuff?

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Depending on the age of the building, it could be asbestos.......be careful there!!!

https://images.app.goo.gl/ussQ1RpCrU9Aiqqn6

found the pic on sanier.de


And here's a (albeit German) flyer from SUVA in regards to the topic of Asbestos in buildings

http://www.schadstoff-sanierung.ch/f...t-erkennen.pdf
The age of the building and the fact it is the kitchen ceiling increases the risk. It didn't register as being asbestos, but then again, I'm not sure if I'd recognise more than a couple forms of asbestos...
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Old 08.01.2020, 17:15
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Re: What's this stuff?

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It´s actually Zementgebundene Holzwolle, (cement bound wood wool) used mainly as a lightweight covering. Heraklit has it if you want more.
I think you might be right: maybe this: https://www.knaufinsulation.de/produkte/heraklith-c

so the wood wool, followed by chip board, followed by plaster layer.

i'll take a closer look tonight.
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Old 08.01.2020, 17:47
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Re: What's this stuff?

Mix it with some milk and eat it.

If it tastes at all palatable, it may be Shredded Wheat.
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