Aerodynamic roof edges

A coping assembly for forming a roof edge on a building structure having generally horizontal or sloping roof surfaces and generally vertical raised parapet walls on the perimeter of said roof surfaces, said coping assembly comprising:

• (a) a coping cover having at least a lower face portion, an intermediate face portion and a top face portion adjoining consecutively, wherein
• said lower face portion is either generally vertical, or sloping upwardly and outwardly away from an outer surface of the raised parapet wall, an angle within 60° with the outer surface of said raised parapet wall;
• where the lower face portion contacts the outer surface of the raised parapet wall.
• said top face portion, or at least one segment thereof, having a substantial lateral size and generally being disposed on or above said raised parapet wall and within ±25° of horizontal;
• said intermediate face portion, connecting said lower face portion and said top face portion, having at least one segment of substantial lateral size sloping or curving substantially upwards and inwards;
• and wherein slope change across a junction between any adjacent two of the face portions, or of segments therein, being generally less than or equal to 50°;
• whereby to reduce upward and outward aerodynamic forces on said coping cover and said roof surface;
• (b) means of supporting and securing said coping cover onto said raised parapet wall.