North-facing windows and rooms experience the most direct sunlight, and therefore the most extreme temperatures. Pergolas and other fixed horizontal shading devices are ideal for these windows and rooms. They can stop the high sun from hitting the glass and heating the room, while also allowing the low-level sun to give a warm glow late in the day. Some pergolas have louvers that can be adjusted to provide complete shading in summer, while still allowing the sun access in winter.
Awnings and roller shutters are also helpful with north-facing windows in summer. Opt for a thick, opaque material for a better shading effect. Outdoor shading products are adjustable for you to control how much sun exposure you like.