My shelter is based on the plan made by our National Meteorological Service.
Every side must have double laths fixed at right angles. The right angles prevent the wind blowing on thermometer, so it is measuring real air temperature and not wind chill (felt air temperature on exposed skin due to wind). The laths should not be to close together to ensure adequate ventilation.
All the parts painted white and ready for assembly. White colour increases albedo and prevents the Sun to heat up inside of the shelter, that would result in incorrect detector readings.