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当前和未来的能源规范——对空气屏障设计、建造和测试的影响.pdf

上传人: 探** 编号:711902 2025-06-04 97页 7.63MB

1、Lee DurstonBPL EnclosureCurrent and Future Energy Codes-Impacts on the Design,Construction,and Testing of Air BarriersCurrent and Future Energy Codes-Impacts on the Design,Construction,and Testing of Air BarriersThis presentation provides a comprehensive exploration of air tightness by tracing its t

2、heoretical evolution and historical progression,examining the key metrics that define baseline performance levels.Attendees will gain insights into the holistic phases of enclosure consulting with a focus on air barrier strategies,while also critically evaluating the wide range of air tightness code

3、s and standards to understand their validity,impact,and relevance.Learning Objectives1.Review the theory and historical progression of air tightness requirements and understand the metrics that provide the baseline for levels of air tightness.2.Understand what ASHRAE 90.1-2019 and IECC 2021 Air Leak

4、age requirements are.3.Understand the validity,impact,and relevance of the wide range of air-tightness codes and standards.4.Understand whole building air leakage testing(WBALT)as compared to holistic enclosure consulting.Lee DurstonLee has been in the building enclosure industry since 2001.During t

5、his time,he has overseen and completed hundreds of projects in forensic,design,construction administration,construction observation,and quality control for new construction and rehabilitation projects related to several types of faade assemblies.WHY AIR BARRIERS AND WHY NOW?Energy Conservation Measu

6、re First Costs/Construction Operational Costs Building Envelope Durability H-Heat Barrier A-Air Barrier ML-Moisture Liquid MV-Moisture VaporENERGYENERGY Building Envelope(walls,roof,windows,and floors)Lighting Heating,Ventilating,and Air Conditioning(HVAC)Internal and Process Loads(cooking,hot water

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本文主要探讨了空气密闭性的理论发展、历史进程以及其对建筑设计、施工和测试的影响。文章强调了空气屏障策略在整体围护咨询中的重要性,并批判性地评估了广泛的空气密闭性代码和标准。以下是关键点: 1. 空气密闭性要求:回顾了空气密闭性的理论基础和历史发展,理解了定义空气密闭性基准水平的关键指标。 2. 现行和未来能源代码:介绍了ASHRAE 90.1-2019和IECC 2021的空气泄漏要求,理解其有效性和相关性。 3. 空气密闭性标准:全球范围内的标准各异,例如美国ASHRAE 189.1/90.1要求为0.40 cfm/ft² @ 75Pa,而被动房标准仅为0.06 cfm/ft² @ 75Pa。 4. 空气屏障系统质量:提出了六个质量空气屏障系统的步骤,包括系统设计、独立技术审查、分包商资质、模拟施工、施工顺序管理和独立审计。 5. 测试和验证:讨论了整体建筑空气泄漏测试(WBALT)的重要性,以及不同测试方法和标准,如WBALT测试和围护咨询。 6. 成果和结论:指出空气屏障测试对所有建筑物而言是未来的趋势,强调了设计阶段的有效空气屏障和施工各阶段的质保计划对确保气密围护的重要性。 核心数据引用: - ASHRAE 90.1的空气泄漏要求:<= 0.40 cfm/sf75为通过,>0.60 cfm/sf75为失败。 - 被动房标准:0.06 cfm/ft² @ 75Pa的空气泄漏率。
多高才算够?" 你的建筑能通过吗?" 设计师如何应对?"
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