[Old Professer]

I have a brick house; actually it is brick veneer. Does the brick's ability to act as a heat-sink help or hinder the growth of mold in hidden wall spaces absent insukation in the wall cavity?

[Restorer]

Depends on a great many other factors.

What are the materials in the wall behind the veneer?

Was it installed so that it can drain properly?

What is your climate zone?

Lots of others.