Inverted Membrane Roof Systems. In an inverted membrane system, the coventional membrane arrangement is invereted or turned upside down. Inverted roof membrance assembly (IRMA) systems are used in applications where the membrane requires protection from site-specific hazards. These systems are typically applied in conditions where there is extensive roof traffic or to protect from excessive weather conditions such as multiple hail events.
A dwarf is an extremely short adult who is less than 58 inches tall. The word midget is considered derogatory and offensive. Both words describe a short person, but refer to different physical characteristics and genetic conditions. Midget refers to a person who is very short, but normally proportioned.
dwarf planets are mini celestial bodies that orbit around the sun  but are too small to be classed as a real planet pluto was recently  demoted from 'planet' to 'dwarf plane â¦ t'   A dwarf planet is one of the smallest planets in our solar  system.They aren't classed as proper planets.or an object to be a planet it has to: orbit the sun, has enough mass to assume a rounded shape, and clear any objects in its path. Some planets (such as Pluto) are no long â¦ er planets because they do not fit the criteria above. They are then usually classed as dwarf planets.