> 1. About 8-9 ft above garage floor is a hatch in the firewall; the
> hatch allows access from the garage to the attic above the house.

> Seehttp://picasaweb.google.com/bubbabubbs/20091025_firewall#539703986542...

> The hatch is, essentially, a 2ftx2ft opening in the drywall/firewall.
> The 2'x2' piece of drywall is not even attched with any hinges, it's
> just put in place to cover the opening and is fastened with four
> nails. Naturally, there is a little bit of space inbetween, so I would
> like to seal that space - basically, seal off that whole hatch. The
> idea is to ensure a good fire-resistant seal between the garage and
> the attic. (Going forward, I won't use the hatch; there is another
> hatch in the hallway inside the house for attic access.)

> My question: what kind of sealant should I use to seal the spaces
> between the hatch "square" and the firewall.  Would any kind of fire
> resistant caulk do the job?  Or is there some kind of tape I'm
> supposed to use?

> 2. The firewall/drywall doesn't go all the way down to the garage
> floor. Rather, it ends about 3 inches above the garage floor.

> Seehttp://picasaweb.google.com/bubbabubbs/20091025_firewall#539704011995...

> Also, the drywall protrudes by about 3-4 inches from the wall on which
> it is mounted - you can see how the bottom edge of the drywall is a
> few inches away from the bottom concrete part of the wall. The space
> behind the drywall is hollow (some 2-by-4s, I guess), so I would like
> to seal off the bottom in order to create a fireproof seal, but also
> to prevent moisture/insect/debris intrusion. But that area is a bit
> awkward to work around.

> My question: what is the best way to seal off that space? Can I use
> the expanding foam sealant that somes in an aerosol can?

> Thanks
> Bubba