Rising Damp (film) Rising Damp (film) Rising Damp is a 1980 comedy film based on the British situation comedy "Rising Damp", which aired on ITV from 1974 to 1978. The television series was, in turn, adapted from Eric Chappell's stage play "The Banana Box". Chappell adapted the play to television, and wrote the screenplay for this feature film. The film's director was Joseph McGrath. Leonard Rossiter plays Rupert Rigsby, the middle-aged landlord of a decrepit townhouse. Rigsby has fallen for his only female tenant, Ruth Jones (Frances de la Tour). Ruth, however, prefers Philip, who is much younger, more attractive, and more sophisticated
Damp (structural) salt accumulations still persist. This suggests that rising damp is not always the cause for the water penetration. The Building Research Establishment (BRE) in its review concludes that rising damp is a real problem. According to Jurin's law the maximum height of rise is inversely proportional to the capillary radius. Taking a typical pore radius for building materials of 1 µm, Jurin's Law would give a maximum rise of about 15 m, however, due to the effects of evaporation, in practice the rise would be considerably lower. A physical model of rising damp was developed by Christopher Hall and William