Methods for assessing domestic overheating for future building regulation compliance

Jenkins, David; Ingram, Victoria; Simpson, Sophie Ann; Patidar, Sandhya

doi:10.1016/j.enpol.2013.01.030

Cited by 28 publications

(14 citation statements)

References 7 publications

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“…In addition to a lack of clarity regarding the appropriate metrics used to define overheating there is evidence that the current methods of assessing overheating risk in dwellings may not be reliable (Jenkins, Ingram, Simpson & Patidar, 2013). It has been noted that much of the data used to analyse current overheating risk comes from the past (de Wilde & Coley, 2012) and therefore does not make allowance for the potential impacts of a changing climate.…”

Section: Overheating Assessment Methodsmentioning

confidence: 99%

“…Coley et al (2012) however, suggest that a more median approach (50 th percentile) with allowance only for 'hard' adaptations to resolve any overheating, as this would allow designers to avoid potentially unnecessary and costly adaptations. Jenkins et al (2013) suggest that both the DSYs, which is intended to test the building for overheating and TRYs, used to represent more normal conditions for energy estimates, be used so that both 'near extreme' and higher probability scenarios can be represented. This in turn allows for at least some of the probabilistic capabilities of UKCP09 to be realised, although as noted by Coley et al (2012) shown to be at high risk of overheating (Mavrogianni et al 2015) and several studies have explored these issues (Dengel & Swainson 2012), detailed exploration of the impact on houses are less prevalent and given the volume of dwellings involved (7.38m) consideration of the potential impacts on these units is merited.…”

Section: Building Performance Simulationmentioning

confidence: 99%

See 1 more Smart Citation

The impact of regulations on overheating risk in dwellings

Mulville

Stravoravdis

2016

Building Research & Information

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Section: Overheating Assessment Methodsmentioning

confidence: 99%

Section: Building Performance Simulationmentioning

confidence: 99%

The impact of regulations on overheating risk in dwellings

Mulville

Stravoravdis

2016

Building Research & Information

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“…A large number of studies have explored the risk of overheating in UK homes using building simulation tools, to examine future climate scenarios and evaluate the potential impact of mitigation strategies, input data, occupant behaviour, building characteristics and adaption strategies (Jenkins et al, 2013;Mavrogianni et al, 2012;Mavrogianni et al, 2014;Peacock et al, 2010;Porritt et al, 2012;Taylor et al, 2014;Vardoulakis et al, 2015;Williams et al, 2013). Whilst building simulation can be very useful, there is a pressing need to identify the prevalence of overheating from live data, to ensure the protection of occupant health and wellbeing, to provide real world evidence and to support the call for concerted action from policy makers and the UK construction industry as a whole.…”

Section: Overheating In Energy Efficient Dwellings-existing Evidencementioning

confidence: 99%

Meta-analysis of indoor temperatures in new-build housing

McGill

Sharpe

Robertson

et al. 2016

Building Research & Information

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Despite growing concerns about overheating, there is a lack of evidence regarding the scale of the problem, particularly in contemporary UK housing. This paper presents the results of a meta-analysis of indoor temperatures in selected low-energy housing.Temperature data recorded at 5 minute intervals in 60 dwellings across 19 demonstration projects (2012)(2013)(2014) were collated and analysed to investigate the prevalence of overheating.Findings evidence high summertime temperatures, with 27% of living rooms exceeding 28°C during August. Based on the CIBSE threshold of 5% annual occupied hours >25°C, 57% of bedrooms and 75% of living rooms were classified as having overheated. Overall, 30% of living rooms exceeded the adaptive comfort threshold of >3% occupied hours The Zero Carbon Hub is a non-profit organisation established in 2008, to take day-to-day responsibility for the achievement of the UK government's target of zero carbon homes from 2016.The hub recently undertook a comprehensive study reviewing a considerable body of knowledge relating to overheating in UK dwellings (Zero Carbon Hub, 2015a;2015b;2015c;2015d;2015e;2015f;2015g;2015h). They stress that one of the most significant challenges of addressing overheating has been the lack of evidence regarding the scale of the problem in a domestic context The aim of this paper is to identify the prevalence of overheating in new-build energy efficient dwellings through a meta-analysis of the existing temperature data gathered as part of the Innovate UK (formerly Technology Strategy Board) BPE programme. This will be achieved by; i) Identifying the prevalence of overheating using static (Passivhaus and CIBSE) criteria and the adaptive method, ii)Exploring the relationship between overheating prevalence and building characteristics (including construction, dwelling type and region), iii) Examining seasonal temperature variations, and iv)Comparing indoor temperatures in homes with and without MVHR systems.

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“…If overheating is highlighted as the issue, quantifying this is non-trivial. As discussed elsewhere [11,12], although standardised definitions of overheating do exist (such as the threshold of 1% of occupied hours exceeding 28 °C [13], as used in this paper), the exact nature of overheating is more complicated than this, bringing together issues of adaptive comfort, location, and building services that are used to provide that comfort. Building modellers tend to use the more simplified definitions of overheating that can, at least, be quantified and compared between different cases, though adaptive comfort algorithms can be applied to building simulation [14] in an attempt to account for a more nuanced understanding of thermal comfort.…”

Section: Climate Change and Buildingsmentioning

confidence: 99%

Quantifying Change in Buildings in a Future Climate and Their Effect on Energy Systems

2015

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Projected climate change is likely to have a significant impact on a range of energy systems. When a building is the centre of that system, a changing climate will affect the energy system in several ways. Firstly, the energy demand of the building will be altered. Taken across the entire building stock, and placed in context of technological and behavioural changes over the same timescale, this can have implications for important parameters such as peak demand and load factors of energy requirement. The performance of demand-side, distribution/transmission and supply-side technologies can also alter as a result of changing temperatures. With such uncertainty, a flexible approach is required for ensuring that this whole energy system is robust for a wide range of future scenarios. Therefore, building design must have a standardised and systematic approach for integrating climate change into the overall energy assessment of a building (or buildings), understanding the implications for the larger energy network. Based on the work of the Low Carbon Futures (LCF) and Adaptation and Resilience In Energy Systems (ARIES) projects, this paper overviews some of the risks that might be linked to a changing climate in relation to provision and use of energy in buildings. The UK is used as a case-study but the outputs are demonstrated to be of relevance, and the tools applicable, to other countries.

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Methods for assessing domestic overheating for future building regulation compliance

Cited by 28 publications

References 7 publications

The impact of regulations on overheating risk in dwellings

The impact of regulations on overheating risk in dwellings

Meta-analysis of indoor temperatures in new-build housing

Quantifying Change in Buildings in a Future Climate and Their Effect on Energy Systems

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