a search on the web gives this
Store old photographs at constant temperatures below 75 degrees Fahrenheit. Keep the humidity levels in photo storage areas between 15% and 65%. Avoid storing old photographs in attics, basements, or garages where temperature and humidity tend to fluctuate. This can lead to mold, chemical decay, or brittleness.
Not to sure about the acid free Albums as the fixer used in their development is mildly acidic.