Preserving the value of a painting collection
You should pay attention to the various ambient factors – the work's environment should be as stable as possible. Variations in temperature and moisture should be minimal, and preferably avoided altogether. Direct sunlight should be avoided completely.
Paintings on canvas are not very fragile: ideally, they should be kept at humidity levels of 55% if the temperature is around 20°C. Paintings on paper are very fragile: Heat, light, and moisture should be avoided completely.
Paintings on wood are relatively resistant: ideally, they should be kept at humidity levels of 55% if the temperature is around 20°C.
Paintings on canvas are not very fragile: ideally, they should be kept at humidity levels of 55% if the temperature is around 20°C. Paintings on paper are very fragile: Heat, light, and moisture should be avoided completely.
Paintings on wood are relatively resistant: ideally, they should be kept at humidity levels of 55% if the temperature is around 20°C.