Plasterboarding over thermalite blocks

[PhiLyn]

I think I know the answer to this one but thought I'd check- I'm looking to Plasterboard out an extension - the inner leaf being thermalite blocks.

Initially I thought I'd dot and dab onto the blocks but then thought maybe I could just screw the board to the blocks (as they can be screwed straight into). This would be much easier and quicker (and less mess) but I'm guessing this is probably the cowboy approach in that the screws may effect the strength of each block.
Or I could screw battons to the wall (using less screws) and attach to Plasterboard to these.

I'm guessing the answers will come back as "stop being a lazy git and D and D" but I thought I'd check.

Thanks in advance

 

[Alastairreid]

//www.diynot.com/forums/viewtopic.php?t=210974

 

[Richard C]

Why not have a proper plastering job done in your new extension you’ll probably never have to touch it again & it will outlast you, dry lining may not.

But if you must dry line, dot & dab it don’t screw directly to the blocks; your likely to see all the undulations in the wall, it may come loose or even fall off. Do skim the boards afterwards though, none of that nasty tape & fill stuff.

 

[drnail]

dot and dabs deffo the best way buddy , just make sure ya use plenty round the edges

 

[roughcaster]

Dot and Bodge,,,, Yuk!!!
Rich'd is right,,, get it plastered properly.

 

[drnail]

what are we calling properly roughcaster ????????
surely not browning?????????

 

[Richard C]

Dot and Bodge,,,, Yuk!!!
Rich'd is right,,, get it plastered properly.

Couldn’t agree more RC ; I admit I do a fair bit of it & it does have its uses but many actually think it’s progress & far superior.

 

[roughcaster]

what are we calling properly roughcaster ????????
surely not browning?????????

I've plastered many a wall with browning over the years, but nowadays it's hardwall or bonding coat,, more bonding coat. Now and again it's sand cement and lime. They still have browning on sale at the local TP's, but as i said, bonding coat and multi finish from BnQ, is my regular plaster.