Patent ID: 11873638
Assignee: BASF SE
Field: Civil engineering (Other fields)
Classification: CPC E  B | IPC B  E

Claim 17:
18. A wall assembly comprising:
a frame assembly having a top member, a bottom member opposite to said top member, and a plurality of vertical members coupled to and extending between said top and bottom members with said frame assembly having an interior side and an exterior side opposite to said interior side;
a sheathing layer extending from an interior surface to an exterior surface, said interior surface of said sheathing layer coupled to said exterior side of said frame assembly, said sheathing layer comprising graphite polystyrene rigid foam insulation;
a closed cell inner foam layer comprising a sprayable foam selected from the group consisting of polyurethane foams, polyurea foam and combinations thereof disposed between and bonded to said plurality of vertical members of said frame assembly and bonded to said interior surface of said sheathing layer for coupling said sheathing layer to said frame assembly; and
an outer fiberboard extending from an interior surface to an exterior surface, said fiberboard coupled to said exterior surface of said sheathing layer,
wherein said fiberboard is laminated with a lamination comprising a non-perforated, non-woven polyolefin permeable membrane.