A curable composition which is composed mainly of a saturated hydrocarbon polymer having a reactive silicon group and can improve the adhesion to various adherents and various types of glass, particularly weather-resistant adhesion to heat reflecting glass. The curable composition comprises (A) a saturated hydrocarbon polymer having a hydroxyl group or a hydrolyzable group bonded to a silicon atom and at least one silicon-containing group crosslinkable through the formation of a siloxane bond, (B) a silane coupling agent, and (C) a compound having in its molecule an unsaturated group polymerizable upon a reaction with oxygen in the air and/or a photopolymerizable material.
