New Guide to Automated Façade Control
23 December 2009
Designed to provide guidance regarding the design, procurement, construction and operation of automated facades, the guide gives a thorough explanation of all aspects of these key areas for all involved at each and every stage.
The trend for natural ventilation is making a strong comeback following the short lived popularity for mechanical air-conditioning in otherwise sealed buildings. Also energy efficiency in buildings is now recognised as one of the biggest factors in reducing man’s effect on global warming. These factors have led to the Along with other façade bound technologies such as solar shading, automated adaptive natural ventilation is being specified and included with increasingly regularity, yet often the designers and contractors involved have little or no experience of the technology or how to implement it to best effect. The result can be unexpected additional construction costs, poor integration with other systems, failed performance of the building as a whole leading to unsatisfied occupants and clients looking for reparation.
Therefore SE Controls were pleased to be asked to partner the Centre for Window and Cladding Technology (CWCT) to create a guidance document for the construction industry. This document is targeted at all stakeholders in the construction process from designers through to client, and aims to explain the strategies, components, design, and contracting considerations of automating façades. It explains the design process, the responsibilities of the stakeholders, the procurement, installation and commissioning phases as well as effective hand over. A number of building sectors are considered including Education, Heath and Commercial buildings.
SE Controls has over 25 years experience providing adaptive solutions to meet the design intent and ventilation strategy on thousands of projects.
Working in partnership with CWCT, SE Controls has provided expert guidance for this comprehensive document.
*Protecting our Environment*
Sustainability is a key consideration for most organizations; the importance of taking early design decisions within the brief will enable a comprehensive system to meet all your requirements.
Natural ventilation is becoming increasingly popular, especially within schools where air quality levels are set by the Building Bulletins. From sustainability to the cost benefits and improved pupil productivity; natural ventilation is ideal within educational buildings.
Included within the guide is an overview of natural ventilation, outlining the principle role of facades being to control the internal environment of naturally ventilated premises.
Whether a building relies solely on natural ventilation or is a mixed mode design, the ability to control the façade correctly is fundamental to the efficacy of the design and will determine comfort levels and energy use of the building.
The importance of clean fresh air at a comfortable temperature cannot be overstated. A proven method of reducing ‘sick building syndrome’ is by ensuring fresh, clean air is delivered into a building when and where needed. This has a significantly positive effect on occupants, helping to produce a stimulating environment for work and education.
Fresh cool air can also have the benefit of eliminating the need for mechanical air conditioning, one of the largest culprits of energy use in buildings.
With the current Swine Flu scare the importance of healthy environments is being portrayed consistently within the media. Whether it is within our schools, educating the minds of tomorrow, our offices where the minds of today are active or within heath care buildings; protecting the working environment for all occupants is vital.
*Step by Step*
At every stage of the implementation process an individual or team plays a crucial role; the need for early identification of the client’s requirements; the need for both concept design and detailing to be carried out as concurrent design with all parties involved and the need for early planning of the supply chain.
Automated facades comprise windows, vents, shading devices, blinds and sensors in addition to the window or curtain wall framing system. Often supplied by different contractors or manufacturers, it is important that each item is compatible with the next for successful completion.
The guide takes all stages into account providing information to the range of people involved in each process, from components for shading to strategies and design considerations.
There are many common issues that must be considered in the design of any building employing natural ventilation and/or an automated façade. These include, amongst others;
* Location of Building
* Thermal Mass
* Depth of Floor Plan
* Internal Heat Gains
The document discusses the issues for consideration with emphasis on specific premises with individual requirements including offices, hospitals and schools.
Within offices considerations may need to be made for potential later partitioning within the building. Often partitions can be installed, moved or amended affecting the performance of building services. IT equipment and human occupants add to potential internal heat gains requiring sophisticated ventilation systems to mitigate these factors.
A possible solution is to introduce chimneys to provide high level exhaust of warm stale air, and thus generating low level make up air flow through low level vents.
Hospitals have a high number of transitory occupants who may not be familiar with the building or indeed the operation of ventilation devices. The solution to this is the implementation of an automated façade managing the control of ventilation without the need of intervention by the occupants.
As with offices, blinds or curtains used within wards may restrict air flow much like partitions; reduced airflow will lead to lower air quality and hence infection.
The government is setting low energy targets affecting premises such as schools; currently high temperatures within educational premises are permitted only for certain time durations (120 hours over 28°C per year¹) yet the government is pushing natural ventilation to ensure schools benefit from its positive attributes such as reducing sick building syndrome and improving productivity.
The new Guide to Automated Façade Control, developed with SE Controls and with other partners including leading consultants and contractors, takes into account the various considerations for each stage of development offering comprehensive guidance.
The Guide is freely available to CWCT members, alternatively it can be purchased at £25 to non-members.
For further information regarding the new guide or ventilation requirements contact;
+44 (0) 1543 443060 Go back