Mothballs are generally composed of either para-dichlorobenzene (tolerance in air is 75 PPM) or naphthalene (tolerance in air is 10 PPM). The vapor from mothballs as they evaporate is heavier than air, so the vapor sinks down through underlying materials. Mothballs are not water-soluble, so they are resistant to conventional cleaning processes. Mothballs are soluble in alcohol (denatured, ethyl, isopropyl, etc.). Mothball odor problems generally occur when people over apply them.
Base pricing on this job on a time and material basis. Wear appropriate respiratory protection (a respirator with organic vapor pesticide canisters). Rely on engineering controls, ventilation, etc. to lower the respiratory protection levels required. Follow the basic method listed below. Vapors may be desorbed from affected materials by spraying affected areas with denatured alcohol and water solutions. The starting formula for desorbing would be 40% water and 60% denatured alcohol. Be careful because denatured alcohol is highly flammable and poses an inhalation risk.
The ZipWall 12-Foot SLP 2 Pack comes with two ZipWall Spring Loaded Poles. This kit really comes in handy when you need extra poles for a big job. It's also an economical way to add poles to your ZipWall system.