支持SPC 90.2的经济数据库研究分为三个数据库任务:任务1:住宅能源价格任务2:住宅热围护结构能源施工技术任务3:住宅暖通空调设备。本研究的结果和说明见以下章节。每个数据库都是与ASHRAE和美国住宅建筑商协会合作建立的。随后的草案包括了反映新要求和成员意见的额外数据。

The research for the economic data base in support of SPC 90.2 was divided into three data base tasks: Task 1: Residential Energy Prices Task 2: Residential Thermal Envelope Energy Construction Techniques Task 3: Residential HVAC Equipment The results and descriptions of this research are presented in the following sections. Each data base has been produced in cooperation with ASHRAE and the National Association of Home Builders. Succeeding drafts have included additional data reflecting new requirements and input from members.