Keeping humidity levels at below 50% is vital in minimising corrosion of metal components on your car during storage. The most cost-effective solution to maintaining optimal conditions in your storage space is the installation of a desiccant dehumidifier. Unlike DX (condensation type) dehumidifiers, desiccant dehumidifiers, provide year round accurate humidity control against prevailing conditions even at lower temperatures where DX systems are unable to perform. As desiccant can operate effectively at low temperatures this also removes the need to heat the space other than for frost protection purposes. By controlling humidity against prevailing temperatures it ensures humidity levels also do not drop too low. The importance being too low a relative humidity, can lead to materials such as wood leather and natural rubber to dry out in winter months.
For several years the Swedish Corrosion Institute has been testing and observing cars, to identify which parts of the body suffer the most from corrosion. Tests revealed that the following elements are mostly exposed to corrosion: cross bars, stands, various supports (which are under load) and brackets of springs, wing spars, doors, bottom of the car, niches of headlights, fenders and bumpers.
Almost all major parts of the car are exposed to corrosion!