Does doubling insulation layer double R value

But isn't it true that most of the brick used on an actual house construction not really attached to the wall? since there usually a 1 inch air gap between brick and the sheathing / paper? If that is the case what do you mean by attaching the bricks to the wall? The brick will just be stand alone isn't it? I mean the top will be capped off with either some stone cap or chance will be wood or some aluminum or vinyl with them grading the water away. The whole structural support will be the framing on the inside.

The foam will be attached to the wall via their own specialized clips so no issue there.

The two sheets will be glued together and all edge will be seal with tape of some sealant before installing.. so it should act as one whole block.. then the whole thing will then be mounted to stud and edges will be sealed with bottle spray foam where it meet the stud for a complete air tight seal

The windows frame will not start on the brick layer, but on the structural wood layer. The whole structural will be build out of wood, wrapped by aluminum and brick.. windows frame will be light weight aluminum extrusion and and roof will be polycarbonate.

Actually I just found this picture of brick siding screw directly to this panel, see here
http://www.steelconstruction.info/im.../K3_Fig_17.png

Also according to the manufacture company picture.. it will support brick slip system.. maybe I should just do that instead of full brick?

Also here is the actual installation video from the manufacture in case anyone wanted to know more

Well the brick wall isn't really for structural so.. maybe I could do faux brick siding..But isn't it true that most of the brick used on an actual house construction not really attached to the wall? since there usually a 1 inch air gap between brick and the sheathing / paper? If that is the case what do you mean by attaching the bricks to the wall? The brick will just be stand alone isn't it? I mean the top will be capped off with either some stone cap or chance will be wood or some aluminum or vinyl with them grading the water away. The whole structural support will be the framing on the inside.The foam will be attached to the wall via their own specialized clips so no issue there.The two sheets will be glued together and all edge will be seal with tape of some sealant before installing.. so it should act as one whole block.. then the whole thing will then be mounted to stud and edges will be sealed with bottle spray foam where it meet the stud for a complete air tight sealThe windows frame will not start on the brick layer, but on the structural wood layer. The whole structural will be build out of wood, wrapped by aluminum and brick.. windows frame will be light weight aluminum extrusion and and roof will be polycarbonate.Actually I just found this picture of brick siding screw directly to this panel, see hereAlso according to the manufacture company picture.. it will support brick slip system.. maybe I should just do that instead of full brick?Also here is the actual installation video from the manufacture in case anyone wanted to know more https://www.youtube.com/watch?v=HWb-vN5dIUk

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