A building panel, comprising: a panel (300, 1000) having a first external surface and an opposed second external surface, the panel comprising a panel core (101, 201, 2301) and the panel core having a first surface (107, 2307, 2407) and an opposed second surface (109, 2309, 2409); at least one environmental sensor assembly (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424) associated with the panel core (101, 201, 2301) and configured to detect an environmental condition of the panel (300, 1000) comprising moisture, pressure, or both, and wirelessly communicate data on the environmental condition to a reader; wherein the at least one environmental sensor assembly (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424) is self-supporting, passive, and comprises an antenna, a processing module, and a wireless communication module, wherein the at least one environmental sensor assembly (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424) is embedded within a body of the panel core (101, 201, 2301), disposed between layers (54, 56, 58, 102, 108, 202, 208, 210) forming the panel core (101, 201, 2301), or disposed between the first surface of the panel core (101, 201, 2301) and a panel facing material, and wherein the at least one environmental sensor assembly (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424) preferably comprises a passive radio frequency identification sensor, characterized in that the building panel further comprises at least one visual indicator (121, 350, 352) positioned on the first external surface of the panel (300, 1000), each of the at least one visual indicators (121, 350, 352) indicating a location of each of the at least one environmental sensor assemblies (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424), wherein the at least one visual indicator (121, 350, 352) preferably comprises a score or mark. a panel (300, 1000) having a first external surface and an opposed second external surface, the panel comprising a panel core (101, 201, 2301) and the panel core having a first surface (107, 2307, 2407) and an opposed second surface (109, 2309, 2409); at least one environmental sensor assembly (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424) associated with the panel core (101, 201, 2301) and configured to detect an environmental condition of the panel (300, 1000) comprising moisture, pressure, or both, and wirelessly communicate data on the environmental condition to a reader; wherein the at least one environmental sensor assembly (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424) is self-supporting, passive, and comprises an antenna, a processing module, and a wireless communication module, wherein the at least one environmental sensor assembly (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424) is embedded within a body of the panel core (101, 201, 2301), disposed between layers (54, 56, 58, 102, 108, 202, 208, 210) forming the panel core (101, 201, 2301), or disposed between the first surface of the panel core (101, 201, 2301) and a panel facing material, and wherein the at least one environmental sensor assembly (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424) preferably comprises a passive radio frequency identification sensor, characterized in that the building panel further comprises at least one visual indicator (121, 350, 352) positioned on the first external surface of the panel (300, 1000), each of the at least one visual indicators (121, 350, 352) indicating a location of each of the at least one environmental sensor assemblies (120, 122, 124, 2320, 2322, 2324, 2420, 2422, 2424), wherein the at least one visual indicator (121, 350, 352) preferably comprises a score or mark.