Bonding/Multi Mix or Overboard?

kevinsmbuk · 9 Dec 2019

I've never overboarding a ceiling, only skimmed over artex. However this ceiling had coving which has been removed and made a bit of a mess. The result is some sections flaking off and some loose material.

Would you

A: remove loose material then PVA, to bind it all then mix of bonding/skim, then skim OR
B: Overboard with 9.5mm PB and skim?

23vc · 11 Dec 2019

B but use 12.5mm

kevinsmbuk · 12 Dec 2019

23vc said:
B but use 12.5mm

Why 12.5mm?

23vc · 13 Dec 2019

Sits better, bends less, more substantial. Far more commonly used than 9.5mm.

kevinsmbuk · 13 Dec 2019

23vc said:
Sits better, bends less, more substantial. Far more commonly used than 9.5mm.

Ok no probs cheers

kevinsmbuk · 27 Dec 2019

Ok so I've bought 12.5mm plasterboard for overboarding and in the process of marking out joists. Bought a magnet to find where existing nails are then was going to use a chalk line to mark a line across the ceiling to know where to screw.

I have seen people use a hammer and break holes in the existing ceiling near to the joists to locate the exact centre's but surely thats not a good idea with the potential asbestos in artex?

Also if you are working alone is it a good idea to cut 2400mm boards in half for easier lifting into place? I realise it's more screws/scrim tape but surely thats easier?

23vc · 27 Dec 2019

You don’t need to knock holes, you can just drill with a small size bit, you’ll feel if it’s going into a joist or not. Then mark centres and ping chalk line across.
Yeah I can’t board ceilings with 8x4s on my own, I use 6x3s.

kevinsmbuk · 29 Dec 2019

23vc said:
You don’t need to knock holes, you can just drill with a small size bit, you’ll feel if it’s going into a joist or not. Then mark centres and ping chalk line across.
Yeah I can’t board ceilings with 8x4s on my own, I use 6x3s.

Ok will do a small drill hole either side. Already got a magnet to work out where they are roughly and have just bought a chalk line. Have made a support too and seen that it is a good idea to screw long screws into the wall near ceiling to use as a another support for the board.

23vc · 29 Dec 2019

Google boardmate, it costs peanuts and is a game changer

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Bonding/Multi Mix or Overboard?

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