Rising Damp out of the house with a 'flea in his ear', defending Alan, apparently because Rigsby was offended the man assumed Rigsby to be Alan's father. Alan is immature and Rigsby does become something of a strange father figure for him. Philip Smith (Don Warrington) is a second generation British African from Croydon, although for most of the series he claims to be an "African Prince" and the son of an African tribal King. Philip's lies about his 'primitive' background seem most obviously an ironic response to Rigsby's ignorant remarks, and sometimes result in moments when Rigsby's gullibility and desperation lead
Damp (structural) D Hoff in their paper "Rising damp: capillary rise dynamics in walls". The analysis is based on experimentally well established properties of porous building materials and the physics of evaporation from building surfaces. Hall and Hoff show that the model can be used to predict the height to which damp will rise in a wall. The height of rise depends on the wall thickness, the sorptivity of the wall structure and the rate of evaporation. Further work has confirmed experimentally the importance of mortar properties in determining the height to which damp will rise in walls. "BRE Digest" 245 lists