This section contains two types of information pages. First, informative briefs summarize expanded definitions and relevant solutions on environmental issues related to residential construction. Examples of this type are pages on VOCs and process related issues such as Building Flush-out. The second type of page contains analysis, recommendations, and comparisons on specific building components, such as insulation and roofing materials. When applicable, the information presented includes comparative analysis of first cost, operating costs, and environmental implications, including life cycle analysis and health implications for builders and owners. The components covered include both materials and equipment.