A skylight window for being installed in a roof of a building, the skylight window comprising: a window frame having four frame side members, a window sash having four sash side members supporting an insulating glazing unit, abbreviated IGU, having multiple layers (5c,5d,5e) of glazing, said window sash being movable in relation to the window frame between an open and a closed position of the skylight window, and a weather shield attached to the sash so as to protect a window portion of the skylight window, the window portion comprising the sash, frame and IGU, a first of the frame side members being associated with a first of the sash side members, said first frame and sash side members extending in a longitudinal direction along a first peripheral side of the IGU, said IGU having an exposed interior major surface for facing an interior of said building in an installed position of the skylight window, said interior major surface extending in an outward direction away from a center of the IGU, an inward direction extending in a direction opposite to said outward direction, said IGU further having an exposed exterior major surface for facing in an exterior direction which is opposite of said interior of said building in said installed position of the skylight window, said exterior major surface extending in the outward direction, an upward direction being defined as extending away from at a right angle to said exterior major surface of the IGU, said first frame side member having a primary leg, which in said closed position is positioned lateral to and extends along an outwardly facing surface of said first peripheral side of the IGU, and a secondary leg, which in said closed position extends lateral to and along a part of said interior major surface of the IGU, characterized in that said primary leg extends as far as or farther in said upward direction than a location of said exterior major surface of the IGU. a window frame having four frame side members, a window sash having four sash side members supporting an insulating glazing unit, abbreviated IGU, having multiple layers (5c,5d,5e) of glazing, said window sash being movable in relation to the window frame between an open and a closed position of the skylight window, and a weather shield attached to the sash so as to protect a window portion of the skylight window, the window portion comprising the sash, frame and IGU, a first of the frame side members being associated with a first of the sash side members, said first frame and sash side members extending in a longitudinal direction along a first peripheral side of the IGU, said IGU having an exposed interior major surface for facing an interior of said building in an installed position of the skylight window, said interior major surface extending in an outward direction away from a center of the IGU, an inward direction extending in a direction opposite to said outward direction, said IGU further having an exposed exterior major surface for facing in an exterior direction which is opposite of said interior of said building in said installed position of the skylight window, said exterior major surface extending in the outward direction, an upward direction being defined as extending away from at a right angle to said exterior major surface of the IGU, said first frame side member having a primary leg, which in said closed position is positioned lateral to and extends along an outwardly facing surface of said first peripheral side of the IGU, and a secondary leg, which in said closed position extends lateral to and along a part of said interior major surface of the IGU, characterized in that said primary leg extends as far as or farther in said upward direction than a location of said exterior major surface of the IGU.