How to fill this large hole in ceiling?

[Sleebagz]

Currently renovating our kitchen and have taken some 1980s polystyrene tiles off the ceiling.

Most came off fine but in one corner there's a large(ish) hole (picture below) in the corner of the room where the ceiling and walls meet. It was packed with all kinds of rubbish, newspaper, old bits of broken tile, and it just fell away when I removed the polystyrene tile.

To complicate the matter there's also two water pipes inside the hole and a section of boxing to cover the pipers running down the wall.

Any ideas what I can fill this hole with? I was thinking maybe expanding foam then cut it flush with the wall and ceiling and then use filler to smooth any small gaps?

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• Sleebagz
• 4 Apr 2015
• 1

 

[alan333]

It's difficult to see from the pic what's above the hole, but the best plan would be to screw some sort of new section in place.

If you can access it from above (ie from the loft or something) then cut a shaped piece of 5mm ply or something a bit bigger than the hole (it doesn't need to be an exact fit). Put it over the hole, then screw it to the ceiling from below. You'll need someone to hold it in place while you screw it cos it'll just lift up when you put pressure onto it before the first screw is in.

This gives you something solid to fit the new (whatever) to. You can either fill it flush to the surface with some bonding plaster, or screw a new section of gyproc plasterboard to it. Then fill the joins with some sort of easy sand plaster, like fastset or similar. Then sand with a sanding block until flush.

If you can't access it from above take a couple of strips of the same 5mm ply or something and slot them up through the hole and screw them in the same fashion. All you're trying to achieve is something somewhere that is solid so you can screw or stick your new section to it.

 

[Sleebagz]

Sorry the pic uploaded the wrong way round!

Thanks for the reply, would expanding foam not be an option then?

 

[ree]

Polystyrene tiles most always are used to hide damage or blemishes - and from a safety angle, why they are still allowed is a mystery?

Foam isn't an option - do as recommended above.

You would be best to remove all the embossed paper and finish prepping the ceiling before anything else?

You might want to open the plumbing boxing or snake wiring thro and must know where the exact new layout is going before doing any repairs - do it once.