Insulation board

[luther]

Has anyone seen a product similar to the one pictured below? The regular white styrafoam found everywhere won't do.

[mcm991]

Not seen it here. Have not seen Tyvek wrap either.

If it is new wall construction, similar R values can be achieved by using Q-Con bricks and making a double brick wall.

mcm

[bangmai]

And what R value would that be?

[mcm991]

Not so easy to calculate but feel free to give it a go.

http://www.qcononline.com/images/advertising/catalog_en.pdf

I'll have to locate the data for the extruded polystyrene when I have time.

The Q-Cons do have superior insulating qualities over the reg clay brick.

[bangmai]

but regular brick is about R-1.