Dry Lining an interior flint wall

[Elizabeth Holland]

I need to dry line an interior flint wall that already has lime mortar on it. Am I right in thinking that I build the frame, then cover it with polythene, then breathable DPM and finally plasterboard? It's the polythene and DPM stages I'm unsure about. Advice gratefully received!

[welsh brickie]

50x50mm wood frame insulate with rockwool,staple polythene to the wood then plasterboard

[Brickworkz]

Hi Elizabeth,

The wall needs to breath so it would be the DPM first or coat the wall with a breatherable sealer.

You can then insulate then use the polythene or foiled backed plasterboard.