Do you use pascourse under internal walls?

[market]

owner building timber frames on concrete slab I've put pascourse under external walls do I put it under internal walls 

[EricL · Accepted solution]

Hello @market 

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about Plascourse.

The quick answer is no, plascourse (Damp Proof Course or DPC) is not typically needed in standard internal walls, as it's an external wall component designed to prevent rising damp from the ground. While internal walls can experience moisture problems, these are usually caused by other issues like condensation or leaks, which are addressed with different methods, such as improving ventilation, sealing leaks, or using damp-resistant coatings on plasterboard or masonry. 

If you have any other questions we can help with, please let us know.

Eric