A standing seam roof assembly in which a male sidelap extends from one side edge of a panel and a female sidelap extends from the opposing side edge. The female sidelap, supporting a sealant bead, is shaped fit over the male sidelap. A clip member has a clip tab shaped to be seamed with the male and female sidelaps to connect the standing seam assembly in the assembled mode. The clip tab, having a clip inclined portion with at least one sealant flow hole, with the male and female sidelaps forms lower and upper sealant chambers along a clip tab, the sealant flow hole communicating between the upper sealant chamber and the lower sealant chamber to spread sealant to encapsulate the clip tab. The clip has a clip body slidably connected to a clip base having protruding bearing feet to penetrate and compress insulation when mounted to support structure.