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首页> 外文期刊>Case Studies in Construction Materials >Monitoring the hygrothermal and ventilation performance of retrofitted clay brick solid wall houses with internal insulation: Two UK case studies
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Monitoring the hygrothermal and ventilation performance of retrofitted clay brick solid wall houses with internal insulation: Two UK case studies

机译：监测带有内部隔热层的改良粘土砖固体墙房屋的湿热和通风性能：两个英国案例研究

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This work assesses the hygrothermal and ventilation performance of two ‘hard-to-treat’ historic, clay brick, solid wall houses that are internally insulated. Retrofit A is a two bedroom bungalow with the addition of internal plasterboard and air cavity and Retrofit B is a 5 bedroom house with sheep wool, phenolic and plasterboard insulation. To evaluate the long term performance of the retrofit measures, the testing is carried out 7 and 8 years respectively after completion. The first part of the work investigates whole building hygrothermal performance, ventilation and internal conditions. It was found that both retrofits are operating below specification in regards to their ventilation performance. Anin-situperformance based specification for mechanical ventilationviaCO2monitoring is proposed. The second part focuses on the hygrothermal behaviour of the clay brick wall assembly. Both presented high relative humidity within critical layers of the wall make up. In Retrofit A the wall thermal transmittance was found to be much higher than designed due to inappropriate construction detailing while Retrofit B showed excellent thermal performance and minimal effects of thermal bridging.
机译：这项工作评估了两个内部难以隔热的“难处理”历史悠久的粘土砖实心墙房屋的湿热和通风性能。改造A是一间两居室平房，增加了内部石膏板和空气腔，改造B是一间五居室的房子，采用羊毛，酚醛和石膏板绝缘。为了评估改造措施的长期性能，测试在完成后分别进行了7年和8年。工作的第一部分研究整个建筑物的湿热性能，通风和内部条件。已经发现，两种改造都在通风性能方面低于规范。提出了基于现场性能的通过CO2监测进行机械通风的规范。第二部分关注黏土砖墙组件的湿热行为。两者均在墙的关键层内均表现出较高的相对湿度。在改造A中，由于不适当的构造细节而发现墙的导热率比设计要高得多，而改造B则表现出出色的热性能和最小的热桥效应。

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