New Wall Over Existing Wall
Building a new wall over an existing wall would
not be a problem normally. However this new wall in the bathroom is
being built over a wall that is creating a double moisture barrier.
The new bathroom wall will have a moisture barrier or should I say should have a moisture barrier to keep the water from the shower going between the two moisture barriers.
It's not a good idea to have two moisture barriers in one wall. This could trap moisture and rot the wall framing eventually.
This is another example of why I have built this website and am in the process of creating books to inform contractors and homeowners about the perils of home construction.
These are problems that very few homeowners know about and hopefully, this website used along with my books will provide the necessary home ownership education.