The general purpose of a weather instrument shelter is to protect the monitoring equipment inside which may consist of any number of items such as thermometers, hygrometers,etc from direct sunlight, wind & precipitation. It is important that weather instruments inside the unit have adequate natural ventilation. The double sloping roof with airflow in between roof panels should face direct sunlight.
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.