Originally Posted by ManoTexas

Good concept but when entire roof/attic on fire doubt they help much. Stunning how fast and intensely a house can burn.

Originally Posted by workhurts

5/8th drywall is 1 hour fire rated iirc. That's why they don't want you doing recessed lights etc in a garage. Same reason you're supposed to have double drywall or rockwool or a ton of fiberglass insulation at the top of walls (and between long sections of walls) to form fire blocks and why you should spray fire barrier foam in the holes you make for pipes and wires between floors. It's never one thing that helps but a combo. I'll take every extra second I can.

Originally Posted by mikes70

Very very fast. Sometimes the 20 minute doors are fine, sometimes they are not.



Totally forgot about the recessed lights in a garage.

Originally Posted by workhurts

you can do them but have to box them properly (I think) but these days those puck LEDs would work just as well with a junction box instead of a hole. Don’t ask me why a junction box is ok but I guess they draw the line somewhere.