The invention relates to a roof or skylight window comprising a frame and an insulated glazing unit, where the insulated glazing unit comprises a first glass pane (10) and a second glass pane (20) each having inner surfaces (11, 21) opposing each other, and a side seal (4) arranged between the first glass pane (10) and the second glass pane (20) creating a sealed cavity (40) between the glass panes (10, 20). The first glass pane (10) comprises an edge surface region (14) overlapping the side seal (4) along at least a first part of the side seal (4), wherein the edge surface region (14) comprises an enamel layer (16) comprising pigments reflecting near infrared light.