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SAV - Waste Not Blog

SAV - Waste Not Blog
Upgrading IAQ For Refurbishment & Extension Projects

Should refurbishment include upgrading IAQ?

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Poor indoor air quality (IAQ) in any building has a significant effect on the occupants, so it is essential to ensure that IAQ remains acceptable – which, in existing buildings, may call for improved ventilation with a view to upgrading IAQ. In new buildings and major extensions, IAQ is addressed by Part F of the Building Regulations. However, there are many offices, schools and other types of building that were built to less demanding standards and that now suffer from poor IAQ. This has an inevitable impact on the comfort, well-being and productivity of occupants. Where a project involves extension…

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AirMaster ventilation pathways

Calls for standard for IAQ

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News that the Building Engineering Services Association (BESA), along with other trade bodies, is calling for a specific standard for IAQ (indoor air quality) in the UK is a very welcome development. In fact, it is astonishing that no such standard for IAQ already exists, given the importance of IAQ to the health of both occupants and building fabric. BESA’s CEO Paul McLaughlin wrote in H&V News: “We believe that the best and most practical approach is to create the industry’s first comprehensive IAQ standard. This would help engineers and their clients put an IAQ strategy in place – and…

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Elephant in the room

Optimising Energy Consumption With FloCon Watchman

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Since the introduction of the Heat Network (metering and billing) Regulations 2014 there has been a marked increase in specifications that include a way of apportioning energy consumption for energy billing. The idea of such apportionment is that the landlord can bill tenants on the basis of actual energy usage, rather than simply dividing the total energy costs between the number of tenants. There are clear advantages to this development in energy billing, not least because it’s clearly fairer than simply ‘divvying up’ the bill. Also, if individual tenants have a clear understanding of their energy consumption they are able…

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Night Cooling - Night

Night-time cooling with AirMaster MVHR units

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Use of night-time cooling can help to minimise the risk of non-compliance with overheating criteria. It also reduces the energy consumed for comfort cooling during the day. Night-time cooling, sometimes known as night purge ventilation, describes the use of cool night-time air to reduce the internal temperature of a space or building and hence the temperature of the building fabric. This has the effect of slowing the warming of the space(s) during the following day and can prevent excessive temperatures being reached, without the need for additional cooling. This has particular significance for schools, where overheating criteria are set out…

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AirMaster Teacher Reading

Low noise MVHR (mechanical ventilation with heat recovery)

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Low noise MVHR (mechanical ventilation with heat recovery) has a key role to play in maintaining good indoor air quality (IAQ) with minimum energy consumption. The parallel pressures of maintaining healthy indoor environments whilst optimising the energy performance of buildings create a number of challenges for building service engineers. This document considers the role of noise from ventilation systems and how this can be minimised. Indoor work and study spaces are subject to a range of environmental parameters that contribute to the health and wellbeing of the occupants. The parameters that spring most readily to mind are thermal comfort, lighting…

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Vital role for heat networks

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Since the referendum vote in June 2016 and the decision to leave the European Union there has been considerable uncertainty around the implications of Brexit for the UK’s environmental policies. According to the Institute of Environmental Management (IEMA), 2017 will see a number of opportunities for sustainability, especially if ‘Article 50’ is triggered in March, as planned. These will include the vital role for heat networks and district heating systems with CHP. Greg Clark, Secretary of State for Business, Energy and Industrial Strategy (BEIS) has already indicated that a carbon emissions reduction plan will be announced early in 2017. This…

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Onsite energy generation is on the increase

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A recent survey of energy managers has highlighted the importance of onsite energy generation in enabling organisations to achieve higher levels of energy efficiency and resilience. Nearly half of the respondents said they have installed combined heat and power (CHP) as part of an onsite energy generation strategy. The benchmarking survey was carried out by edie in association with E.ON and asked energy managers in both small and large organisations about their activities relating to energy efficiency. Encouragingly, 95% described themselves as ‘more efficient’, having moved from just being compliant to being more knowledgeable about improving energy efficiency. Surprisingly, of…

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