PURPOSE: To obtain a roof frame for an outdoor machine of a room air conditioner the angle of which can be adjusted at one time, which has a simple structure and for which assembling and constructing operations can be simplified and executed economically.

CONSTITUTION: This roof frame is composed of two parallel support members 11 each of which is constructed of two members so joined as to be bendable at a joining part, two connecting rods 12 which pierce the end parts of the support members corresponding to each other and connect the corresponding end parts rotatably and an engaging member 20 which has engaging means of which the position of engagement is variable along a direction intersecting the connecting rods perpendicularly, and of which the end parts are fitted axially and rotatably to the connecting rods respectively.