Partnership for Advancing Technologies in Housing: Moisture Control - Convective Drying in Residential Wall Systems

住房先进技术合作伙伴关系：湿度控制 - 住宅墙壁系统中的对流干燥

• 批准号: 0122062
• 负责人: Eric Burnett
• 金额: $ 14.98万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-15 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0122062&HistoricalAwards=false
• 关键词: Partnership; Advancing; Technologies; Housing; Moisture

Moisture Control in WallsMoisture constitutes a hazard for buildings and their occupants. There are at least two good reasons to ensure that the presence and movement of moisture across the enclosure of buildings is controlled, especially the exterior walls of houses; first, to avoid the health hazards (mold, etc.) and, second, to avoid deterioration of the materials within the wall. To control moisture requires knowledge of how wetting, storage, and drying occurs and some idea of the performance thresholds for the materials involved. For many building professionals and educational institutions, this is a new science. This project is directed at understanding, modeling, and evaluating the potential for ventilation and convective drying within various wall systems. Houses with pitched roofs commonly make use of the circulation of air to remove moisture from the attic space; hence the familiar vented roof with both soffit and ridge vents for letting cold, dry air in and warm, moist air out in the winter. The contribution of convection to the drying of walls needs to be much better understood.. This project will contribute to improving the durability and the safety of wall systems in houses, leading to reduced maintenance and repair costs. The project meets more than one of the stated PATH goals.The most important involves computer modeling and the investigation of a number of design and development issues. Practical concerns are sizing the flow chamber, assessing the contribution the of sheathing membranes (house wrap, building paper); venting strategies and how best to transfer the technology to the various target audiences: namely the researchers, the design professionals and manufacturers, and the house builder community. An applied R and D project awarded to Eric Burnett of the PHRC by NSF, under the PATH program.

墙壁湿度控制湿度对建筑物及其居住者构成危害。 至少有两个很好的理由来确保控制建筑物外壳中水分的存在和移动，特别是房屋的外墙;首先，避免健康危害（霉菌等）。第二，避免壁内材料的劣化。 为了控制水分，需要了解如何润湿，存储和干燥发生，以及所涉及的材料的性能阈值的一些想法。 对于许多建筑专业人士和教育机构来说，这是一门新科学。 该项目旨在了解，建模和评估各种墙壁系统内的通风和对流干燥的潜力。 斜屋顶的房屋通常利用空气的循环来去除阁楼空间中的水分;因此，熟悉的通风屋顶具有拱腹和屋脊通风口，用于在冬季让寒冷，干燥的空气进入和温暖，潮湿的空气排出。 对流对墙壁干燥的贡献需要更好地理解。 该项目将有助于提高房屋墙壁系统的耐用性和安全性，从而降低维护和维修费用。 该项目满足了多个PATH目标，其中最重要的涉及计算机建模和对一些设计和开发问题的调查。 实际问题是确定流动室的尺寸，评估护套膜（房屋包装，建筑纸）的贡献;通风策略以及如何最好地将技术转移到各种目标受众：即研究人员，设计专业人员和制造商以及房屋建筑商社区。 根据PATH计划，NSF授予PHRC的Eric Burnett的应用研发项目。