How thin can drywall adhesive go??

[marshr02]

Hello there. Not used drywall before. Trying to plasterboard ceiling, which in corner has the underneath of the concrete front step plus a steel. The soffit of the concrete/steel is virtually level with the underneath of the joists around it. SO the last board in this corner can screw into joists on two sides, but needs to be bonded to the concrete on the other - there would be anywhere from 1-5mm space for whatever I use before the board isn't plumb. Can drywall handle going this thin, or should I use something like gripfill. Cheers for any advice

 

[JME401]

Iva way use which ever just for extra strength drill n plug in to the concrete jus to make sure

 

[marshr02]

Iva way use which ever just for extra strength drill n plug in to the concrete jus to make sure

thanks for reply - out of interest is mechanical fixing into concrete basically a standard 38mm plasterboard screw into a rawlplug - or am I missing something. Cheers

 

[JME401]

Personally I'd use a biger screw that's got more bite something that's plated ant wont rust and yeh raw plug

 

[marshr02]

Again thanks for reply. Seems a silly question BUT..it would be too difficult to put a rawlplug in place and THEN offer up plasterboard and find the fixing...so I presume you drill through the plasterboard into the concrete, ....I know it seems silly but...

 

[haloplastering]

Put the plug on the end of the screw as you put it in. Like a hammer fixing

 

[NPS]

gripfill it, saves having a part bag knocking about but yes the addy will be ok at that thickness just skim it on the board then on the concrete/steel too

 

[marshr02]

gripfill it, saves having a part bag knocking about but yes the addy will be ok at that thickness just skim it on the board then on the concrete/steel too

Thanks for reply. That's the conclusion I'm coming to..

 

[ELplastering123]

Tile trowel it mate so when you press the board into it the Addy spreads and grips

 

[lilharbs]

Good tip el:rolleyes) I would probably just squirt a good bit of silicone on it personally,it will never fail.

 

[flynnyman]

If its one ceiling cut strips of bboards put over each joist then get longer screws then board it all

 

[CTPlastering]

Well said flyn giving you more depth for addy if your concerned , it shud take sayy the best part of 5 mins to packer it down