Patent ID: 11946257
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E  Y | IPC E

Claim 0:
1. A method comprising:
aerating a polymer liquid comprising polyurea, with an aeration agent to produce an aerated polymer liquid that includes a plurality of cavity regions that are devoid of polyurea within an interior of the aerated polymer liquid;
applying the aerated polymer liquid as a first membrane layer to a roof substrate of a roof, the roof substrate having a slope and a lateral extent, wherein the applied aerated polymer liquid solidifies to form a first membrane layer that is sloped and has a proximal surface that adheres to the roof substrate over the lateral extent of the roof substrate, wherein a thickness of the first membrane layer is generally uniform over the lateral extent of the roof substrate; and
subsequent to applying the first membrane layer to the roof substrate, applying a second membrane layer comprising a plural component polymer, to the first membrane layer to produce a coated roof.