Other side- prohibited penetrations

What if the wall you are talking about is a shaft wall or an exit...

Altitude vs Pressure

Let’s think about what happens in fire. Let’s imagine for one horrible moment that there...

Membrane penetration

The building code says in section 714.3.2 that recessed fixtures shall be reduced. Is a...

Do I need to firestop everything? Maybe you don’t…

I talk firestop and all the things you should firestop. I don’t talk much about...