Insulation and Vapor Barriers in Ghana
Good insulation will reduce the effect of outdoor environmental conditions on indoor conditions. If there are windows, they should be properly insulated (e.g., double-paned). Consistent use of shutters, blinds, or curtains will reduce heating from sunlight. The use of vapor barriers is also important in controlling humidity within the building. Older buildings are often sturdily constructed of hygroscopic materials (e.g., wood, plaster, brick) that absorb and release moisture, while newer buildings have thinner walls and more easily allow moisture to pass through to the interior. Vapor barriers include various floor and wall coverings, such as waterproof paint or polyethylene film.
Systems
Fire protection, security systems, and climate control equipment are crucial to preservation planning, and should be included in the management of existing or newly-constructed buildings. Because of the importance of these topics, these systems are addressed in further detail later in this session.
Floors and Walls in Ghana
Carpeting should be avoided in collection storage spaces, as it can off-gas pollutants and absorb moisture easily. If storage areas are to be painted with collections in place, use only vinyl, acrylic, or latex paints. If areas must be painted using other types of paints, be sure to allow enough time for vapors to dissipate before returning collections to the area. Dropped ceilings are also not recommended, since they make it harder to identify leaks and can hide mold growth.