Install a heavy, solid core door and be sure to use sealant to seal the rough opening to the studs. You are going to need to build some kind of lined duct or chamber to pull or push fresh air into the room as well as to return it to the rest of the air in the apartment. If ...
Grout is designed for water to pass in and out of the joint. It's like a 2-way street. Caulk, on the other hand, which is frequently composed of silicone, does not allow water to pass through. Opinions vary on whether grout or caulk should be used in the joints where two planes ...
Install a heavy, solid core door and be sure to use sealant to seal the rough opening to the studs. You are going to need to build some kind of lined duct or chamber to pull or push fresh air into the room as well as to return it to...