Exterior vertical fins, overhang/fin combinations (egg-crates), awnings and drop-down shades, block the low morning and afternoon sun during warm periods.
Incorporate mature trees on the east and west sides to cool ground and air temperatures, intercepting sunlight before it reaches exterior walls in summer.
Set east and west vertical fins at an angle toward the:
- Equator in temperate climates – admits sunlight in winter; blocks sunlight in summer.
- North and south poles in warm climates – shades glazing all year.
In hot climates that do not require heating, incorporate deep porches, balconies and covered verandas to block east/west sunlight all year and expand livable areas by creating shaded comfortable outdoor spaces. Exterior drop-down shades and adjustable horizontal louvers or blinds are also effective in blocking east-west sunlight.