A trickle vent is a very small[quantify] opening in a window or other building envelope component to allow small amounts of ventilation in spaces intended to be naturally ventilated when major elements of the design—windows, doors, etc.—are otherwise closed.[1][2] Trickle vents are used extensively in Europe and are integrated into window frames to provide minimum ventilation requirements for naturally-ventilated spaces.
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Energy efficiency ratings
The application of trickle vents in naturally-ventilated spaces can help contribute to IEQ Credit 2 under the LEED green building rating system. LEED EA Credit 2 references CIBSE Applications Manual 10, which provides advice on the design of naturally-ventilated spaces, recommending the installation of trickle vents in naturally-ventilated spaces. Within the UK, the application of trickle vents is required to meet the requirements of the Building Regulations; requirements are described in Guide F, Means of Ventilation.
Effect on indoor environment
Trickle vents will help avoid problems associated with poor ventilation in naturally-ventilated spaces, including reduced risk of condensation, avoided over-ventilation (minimizing energy consumption), and improved comfort through draft avoidance.
Drawbacks
The US Standard ASHRAE 62.1-2007: Ventilation for Acceptable Indoor Air Quality, only requires 4% of net floor area to be operable. This creates the potential for increased energy consumption where natural ventilation is provided by operable windows where supplemental air conditioning is provided, in addition to generally poor control over ventilation rates during hot summer or cold winter conditions.
References
- ^ Burdfield, Martin; Jones, Stephen; Redfern, Stephen; Fearn, Colin (16 March 2020). The City & Guilds Textbook: Site Carpentry & Architectural Joinery for the Level 3 Apprenticeship (6571), Level 3 Advanced Technical Diploma (7906) & Level 3 Diploma (6706). Hodder Education. ISBN 978-1-5104-5854-3.
- ^ Smith, Melanie; Gorse, Christopher (26 May 2021). Building Surveyor’s Pocket Book. Routledge. p. 352. ISBN 978-1-351-39106-1.
Further reading
- Crafti, Stephen. The Ultimate Urban Makeover: Unique Architectural Renovations. Images Publishing, 2007. ISBN 1-86470-171-4.
This page was last edited on 11 May 2024, at 19:30