LP FlameBlock osb?

[MushCreek]

Never knew this stuff existed. It's osb with some kind of flame resistant coating, giving it a 30 minute rating. Quick search showed $39 a sheet at Menard's. BUT- there's a place near here selling it off at $7 a sheet, a bit less than regular osb!

I wonder how it would take paint? I'd need about 40 sheets to do the shop, and I'd have to figure out a good way to store it for a year or better before I'm ready to use it. Still, seems like a killer deal. Anyone here ever see it or use it?

 

[Honkey84]

We have some of it at work. It really doesn't look to much different from regular OSB. The stuff we have has a coating on it, so I would guess it would not absorb as much paint when you go to finish it.

If it's cheap I'd say go for it.

 

[tthornto]

Once you paint over the stamp with the fire rating, as far as everyone else is concerned it's regular OSB. So after it's installed and before it's painted pick a few inconspicuous areas that have the fire rating stamp on them to leave unpainted.

 

[MushCreek]

I don't really care that much about the fire rating. i was going to just use regular OSB anyway. Having the fire resistance is just icing on the cake. I haven't looked at it yet, but I'm hoping the coating hides the OSB-iness appearance some. That, and it should only take one coat of a decent paint to look OK.