Insulating Brick With 3/4 Strapping

downwithfloors

Hey drywall gurus.

I am a flooring guy, so excuse what I guess is a common question....
My exterior walls are double brick, and I believe there's an air pocket 'tween 'em. I'm ripping out my lath and plaster inside to insulate, and found 3/4" strapping attached at random lengths (almost 16") to the inner layer of brick. I have 3 questions:

a) Should I bother?

b) Is 3/4 Styrofoam insulation enough with a vapor barrier and drywall?

c) How would you insulate given this scenario?

One contractor recommended wrapping the inner brick with Tyvek, attach 2X4's flat at 16" using Tapcons, rigid insulation (1 1/2"), vapor barrier, and drywall. Sound good? Help, I'm doing the demo now...

Thanks in advance,
Ian,
floorguy.

SLSTech

Let me get this straight - first you double post this
Second all your posts are asking for help or questioning the way something looks in the flooring section & your a flooring dude.
Then the worst thing you do is bring in a contractor to do an "Estimate" (I would guess) & question what he said?
I may have it wrong but it appears you probably should be in the DIY forum. Thanks for playing

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