建筑围护结构的有效热性能和气密性是暖通空调系统选择和运行的基础，以控制室内条件。有效解决热桥接和空气泄漏问题的外壳可以显著提高负荷的可预测性，并减少建筑暖通空调系统的峰值。反过来，可以对系统进行优化，以提高性能和能效。本文将提供在不列颠哥伦比亚省温哥华市一栋13层多单元住宅楼进行的一项研究项目的结果，该项目目前正在进行中，目的是通过提供监测和测试数据分析，更好地了解全面的建筑围护节能升级如何影响建筑暖通空调系统的性能。建筑围护结构的更新工作已经展开，包括能效升级。 这些升级包括在建筑的整个外立面上增加连续的外部隔热层，使用热效率高的玻璃纤维覆层支撑夹，新的覆层，用三层玻璃纤维高性能单元替换现有窗户，以及改进空气屏障密封。数据收集包括气密性测试、多点示踪测试、补充空气单元进气和走廊供应流量测量、整个建筑内部条件的连续监测、外部环境数据的监测，以及逐套能源消耗的监测。这些数据用于量化建筑物及其HVAC系统的运行行为。本文研究了建筑更新对建筑能耗的影响，以及走廊增压系统提供适当通风的能力。 未来的研究将以室内HRV的形式评估一系列潜在的通风系统升级。引用:ASHRAE论文CD:2014 ASHRAE冬季会议，纽约

The effective thermal performance and air tightness of a building enclosure is fundamental to the selection and operation of HVAC systems to control interior conditions. An enclosure that effectively addresses thermal bridging and air leakage can significantly improve the predictability of loads and reduce peaking on building HVAC systems. In turn, systems can be optimized to improve performance and energy efficiency. This paper will provide the findings of a research project at a 13 storey multi-unit residential building in Vancouver, BC that is currently underway to better understand how comprehensive building enclosure energy efficiency upgrades affect the performance of building HVAC systems by providing analysis of monitoring and testing data.Renewal work to the building enclosure has been undertaken, including energy efficiency upgrades. These upgrades include the addition of continuous exterior insulation over the entire exterior façade of the building, use of thermally efficient fiberglass cladding support clips, new over-cladding, replacement of the existing windows with triple-glazed fiberglass high-performance units, and improved air barrier sealing.Data collection includes a combination of airtightness testing, multipoint tracer testing, make-up air unit intake and corridor supply flow measurements, continuous monitoring of interior conditions throughout the building, monitoring of exterior environmental data, and monitoring of energy consumption on a suite by suite basis. These data are used to quantify the operational behavior of the building and its HVAC systems. This paper examines the impact of the building renewal on the energy consumption of the building and the ability of the corridor pressurization systems to provide appropriate ventilation. Future research will evaluate a range of potential ventilation system upgrades in the form of in-suite HRVs.