Revisions log for Answer #3136

I would decide according to budget, use of space and appearance, less on thermal protection.

We have a 12 m2 corner room on the first floor as an office with south/east facing windows, both windows with exterior blinds because we didn't want blinds and didn't want to mix blinds and shades in the same room. We have some trees to the east and the sun is low in the morning.

I noticed that this summer I forgot to put that easternmost window on the automatic timer for heat protection, just now. There is no significant difference whether the window is shaded or not. Our front door, with its large window area, is also on the east side, and the hallway behind it gets almost no heat. The house is sturdy, with lots of storage inside.

We have roller blinds for the upstairs bathroom and bedroom on the east, and I wouldn't want to do without them.

Outside shading always helps, but if the windows aren't huge, you can do without them on the east.