The two main components of the RoomScreens are dyed silk and finished hardwood.
To clean both components, a gentle vacuuming is ideal. To clean light staining, plain water is the safest option. Use a damp cloth to wipe the wood surfaces, and to remove dirt or stains from the silk. For stronger stains, use a spray bottle to sparingly apply water with a small amount of mild soap to the silk surface, then wipe several times with a cloth saturated with pure water to rinse it. If the silk is soiled with foodstuffs, it is important to wash it out, because the spot will attract clothes moths.
Avoid harsh chemicals. Do not use chlorine bleach. Avoid ammonia, hydrogen peroxide. Baking soda, and rubbing alcohol are safe to use. Murphy's Oil Soap works well to wash stains.
Direct sunlight will deteriorate silk over time, and can also be expected to have a bleaching effect on the dyes. The effect of occasional exposure will be negligible, but best not to leave the RoomScreen in a window with direct sun exposure.
The finish on the wood is nitrocellulose lacquer. Do not use wax- or oil-based furniture polishes, as these will leave a residue, and may stain the silk.
The archival character of silk is considerable. Clothing made from silk has been recovered from tombs 2000 years old. Silk is known to deteriorate due to moisture and sunlight exposure. It becomes brittle. If not exposed to direct sunlight and excessive moisture, the silk panels of the RoomScreens should last well over 100 years.
Exposing the screens to excessive heat—100+ºF—may result in the silk fabric becoming too taut, and over-stretching. When cooled, the tautness of the fabric may sag, leading to wrinkles. It is now feasable—though expensive—to restretch loose silk panels.