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Plastering & Rendering

New plasterboard Firewall between utility room and store room.

Anonymous user 06/03/2024 - 2.31 PM

I will be using 12.5mm pink plasterboard over timber construction but have been advised (by Building Control) that this will also need to be skimmed with plaster. I am not skilled enough to do plastering, and I am therefore wondering if I can use 9.55mm plasterboard first and then overlay with the 12.55mm pink plasterboard? The utility side of the wall has been finished with a skim some time ago, but the store room side is still to be done. (As it is only a store room I am not concerned about the finish and will simply paint with matt coat.) Many thanks.

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4 Answers

M&Y Art Refurbishment Ltd

Rating: 5 out of 5
Wallington
Using a 9.55mm plasterboard as a base and overlaying it with 12.5mm pink plasterboard is generally not recommended. It's crucial to follow the specified requirements from Building Control, which likely includes using 12.5mm plasterboard and skimming for fire safety and structural reasons. If you're not comfortable with plastering, consider hiring a professional plasterer to ensure compliance with regulations. Skimping on these requirements may lead to issues with safety and building code compliance
Answered5 December 2023
1

Carl Gibbs

No reviews yet

Nottingham
I think it might still need skimming as it’s to stop airflow going through the plaster board gaps
Answered5 December 2023
0

Elys

Rating: 5 out of 5
Bath
As a plasterer I never recommend people trying to Skim ( multi-finish) , it takes practice and hard to sand flat if done badly. Taping and joining is a far easier method of plastering for DIY, lots of good videos online. Easy to sand if it's not perfect and it gets better and easier with each coat applied. Good luck!
Answered6 December 2023
0

Anonymous user

Use a 15mm fire rated plasterboard instead or use a double skin of 12.5mm fire rated using steel studwork
Answered9 December 2023
0