- Title
- How to recognize the impact of masonry components on housing thermal performance
- Creator
- Alterman, Dariusz; Page, Adrian W.; Zhang, Congcong; Moghtaderi, Behdad
- Relation
- 16th International Brick and Block Masonry Conference (IB²MAC). IB²MAC: Brick and Block Masonry - Trends, Innovations and Challenges ( 26-30 June, 2016) p. 453-460
- Publisher Link
- http://dx.doi.org/10.1201/b21889-54
- Publisher
- CRC Press
- Resource Type
- conference paper
- Date
- 2016
- Description
- This paper describes a novel concept called the 'Dynamic Thermal Response' (DTR) which accounts for the contribution of the masonry components of walling systems in buildings when exposed to typical temperature fluctuations. The concept is of particular importance for masonry construction as it directly reflects the contribution and appropriate arrangement of the insulation and thermal mass within each wall. The concept can also be expanded to capture the overall thermal performance of building enclosures (termed the 'DTRS'). The current worldwide emphasis in the assessment of the thermal performance of buildings is to use static thermal conditions, with the thermal resistance (R-value) of the various building components being the principal parameter considered. None of the existing methods consider the location of the insulation in relation to the high thermal mass components of the walls, despite this being an important parameter. This importance is illustrated by the comparative behaviour of insulated brick veneer and insulated reverse brick veneer walling systems, which can have the same steadystate R-value but significantly different thermal performance. The DTR concept takes into account the dynamic nature of the environmental conditions, the response of the wall to environmental changes and more importantly, facilitates the assessment of the thermal performance of the building as a whole (using the DTRS as a direct extension of the concept). The principles of the concept and the fact that masonry construction significantly reduces heating and cooling loads have been confirmed using data obtained from observations of the thermal performance of existing lightweight and heavy walling housing test modules. The concept has the potential to improve the accuracy and effectiveness of current energy efficiency measures and ultimately lead to more thermally efficient house designs as well as the assessment of the performance of retrofitting techniques for existing housing.
- Subject
- dynamic thermal response; thermal performance; insulation; masonry construction
- Identifier
- http://hdl.handle.net/1959.13/1344552
- Identifier
- uon:29447
- Identifier
- ISBN:9781138029996
- Language
- eng
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