Most problems relating to Volatile Organic Compounds are caused by new construction and renovation works. To avoid these problems, in addition to using materials with low emission levels, ventilation must be adapted during the course of the works and after the new construction or renovation works. During renovations, the areas in which work is being carried out must remain isolated so that air does not flow from these areas into other sections. This is achieved by shutting off air returns and venting air from construction areas to outside.
In new constructions or after renovations, the amount of outdoor air that flows inside must be higher in order to offset the increase in levels of VOC. One authority in this field actually recommends 100% outdoor air, without any recirculation whatsoever, in the first 6 months.
