A glazing system for a wooden door or window employs coextruded vinyl trim strips which have a planar base with flexible compression members and flexible seal tubes and a projecting barb extending from the base. The trim strips engage in kerfs in the window sash and the seal tubes are compressed against the window lights by extruded aluminum trim caps which engage with the trim strip barbs and against the sash. Sashes which have more than one light separated by a wooden muntin are glazed with a vinyl extruded muntin strip which is attached to the muntin so that a flexible seal tube which is a part of the muntin strip base overlies the glass lights on each side of the muntin. An extruded aluminum muntin cap is snap-fit to the muntin strip such that the muntin strip seal tubes are compressed against the window glass. The aluminum muntin cap and trim caps substantially cover and shield the trim strips and muntin strips from exposure to sunlight.