Whats the quickest way to patch plasterboard

[Gary111]

Hi, I have a hole I need to patch, I don't live there so want to do it in one quick go if possible.

What's the best way please?

Also I think the cavity could do with some insulation at the end before I fit the plasterboard, is it a good idea to put some rockwool in a strong bin bag and stuff it in there?

Thanks

 

[Gary111]

 

[Gary111]

Also I think the current plasterboard is 12.5mm I only have some 9mm, can I use that?

 

[blup]

You can dot and dab the thinner plasterboard so its flush with the surface ready for skimming. Expanding foam for the gap, or if small enough a cement based filler.I think foam behind board has to be fire rated.

 

[Gary111]

Great thanks for your help mate, do you mean I can use the expanding foam as insulation in the cavity?

Or shall I stick to my rock wool in a bag idea?

 

[Koolpc]

Rock wool in the hole, foam adhesive the plasterboard on top. Then skim when set.

 

[blup]

Great thanks for your help mate, do you mean I can use the expanding foam as insulation in the cavity?

Or shall I stick to my rock wool in a bag idea?

The rockwool should be fine as long as no damp in the vicinity that might be transmitted to the pb.

 

[Gary111]

It does seem damp that's why I made the hole to investigate

 

[blup]

Maybe leave an air gap to protect the board