Can Exhaust & Plumbing Share a Wall Cavity?

If you’re renovating a bathroom, kitchen, or laundry room, you’ve probably asked: Can exhaust and plumbing be in the same wall cavity? It’s a common—and smart—question. Combining systems in tight wall spaces seems efficient, but it can lead to serious moisture, code, or performance issues if done wrong. Whether you’re a DIYer or working with…