My project proposes to install five kiln carved panels each 19" x 36" x 6mm (with variation in the kiln carved areas into a recessed window space, between the regular window and the room, placing the panels one above the other (landscape orientation) with small stops between each panel and wooden side stops (frames). The building is above the 49th parallel, the window is west facing and has a substantial overhang, so no panel would get direct sunlight even in the summer, until past mid day. The window is in the shadow of the roof overhang until it begins to climb the wall about 2pm, and by 6pm, all 5 panels would receive direct light. The shift from shade to sun is moderate, and each panel would have a moving patterrn of both shade and sunlight for less than an hour, at the moderate angle that the latitude delivers.
I would like an opinion about whether or not this exposure pattern would cause stress within any one panel.
Mary Louise White