The ventilation pipe fitting for a building roof has a plate (11) shaped to fit onto the existing tiles on the roof (3). The air duct receiver (13) is attached to the tile. An air vent pipe (21) extends through the receiver which is at least partially surrounded by a collar (14)...
PROBLEM TO BE SOLVED: To contrive to enhance the waterproof performance of an exterior wall by mounting a flange on a vertical material from above a vent waterproof sheet, placing the end of a rafter in contact with the flange and fixing the side surface of the rafter, which is slanted dow...