what is the minimum distance allowed between roof vents
Distance to Roof-Top Vents (CPC 906.2) Operable skylights shall be located a minimum of 10 feet from all plumbing vents or the vent shall terminate 3 feet above the skylight. Operable skylights shall be a minimum of 3 feet from any environmental air vent (i.e. stove hood, bathroom fan, etc.)