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Copy of Green Skyline
Transcript of Copy of Green Skyline
Green buildings promote better health standards because they deal with the problem of resource inefficiency.
Through efficient allocation of resource, waste production and pollution is minimized, leading to healthier environments, and in turn healthier people. Over the years experts have argued against blindly following the green standards, and that green buildings might be in fact unhealthy.
By focusing on efficient resource allocation, building designs have neglected the health of the occupants.
LEED is one such example Green buildings promote:
Efficient use of energy, water, and other resource
Protection of occupant health and improving employee productivity
Waste and pollution reduction, as well as reduce environmental degradation An investigation: Are green buildings necessarily healthy? Introduction Green Initiatives in SG What is a Green building? Definition of healthy WHO A state of complete physical, mental and social well-being and not merely the absence of disease of infirmity.
Green building is the practice of creating structures and using processes that are environmentally responsible and resource-efficient throughout a building's life-cycle from siting to design, construction, operation, maintenance, renovation and deconstruction. Ideally... Indoor Environmental Quality:
Lighting: visual environment, daylight, artificial light
Indoor air quality, ventilation, source control
Acoustic environment Indoor Environmental Parameter Agency in charge
Agency under the Ministry of National Development
In charge of the development of an excellent built environment for Singapore BCA Green Mark Scheme (GMS) Launched in January 2005 as an initiative to drive Singapore’s construction industry towards more environment-friendly buildings.
Green building rating system:
a comprehensive framework for assessing the overall environmental performance of new and existing buildings Benefits of GMS Facilitate reduction in water and energy bill
Reduce potential environmental impact
Improve indoor environmental quality for a healthy and productive workplace
Provide clear direction for continual improvement Government Initiative Up till 2012, 13% of Singapore buildings are Green Mark Certified.
At least 80% of the buildings in Singapore to achieve the BCA Green Mark Certified rating by 2030. List of Green Mark Schemes 1. Non-Residential New Buildings
2. Residential New Buildings
3. Existing Buildings
4. Existing Schools
5. Office Interior
6. Landed Houses
11. Existing Data Centers
13. New Parks
14. Existing Parks
Green Mark Schemes are updated from time to time, ensuring that the changing trends of the environment and the construction
industry are taken into consideration. How to achieve the Green Mark Certification? Breakdown of IEQ 1. Energy Efficiency
2. Water Efficiency
3. Environmental Protection
4. Indoor Environmental Quality
5. Other Green Features Green Mark Components Thermal comfort:
- Temperature of 24 to 26 degree Celsius
- Relative humidity of 65%
Noise comfort: Good ambient sound level (SS 553:2009)
Indoor air pollutant:
- Use of low volatile organic compound paint
- Environmental friendly adhesives
Indoor Air Quality Management:
- Provision of filtration media
- Differential pressure monitoring equipment in AHU
- Effective IAQ management
High frequency ballasts: use of high frequency ballasts lamps Green Mark Certification Rating Sick Building Syndrome (SBS) Symptoms of SBS Impact of SBS Significant impact of SBS is that it will affect the occupant’s performance and productivity Courses to educate professionals on SBS What is SBS? Sick Building Syndrome (SBS) comprises of a group of mucosal, skin, and general symptoms that are temporarily related to working in a particular buildings which usually affects the occupants with a few hours of works and improves within minutes of leaving the building
Causes of SBS:
- Poor Indoor Environmental Quality (IEQ) but mainly due to Indoor Air Quality (IAQ)
-Deterioration of Ventilation
-Poor maintenance of built environment Green buildings promote better health standards because they tackle the problem of resource inefficiency.
Through efficient allocation of resource, waste production and pollution is discouraged --> healthier environments --> healthier people. Over the years experts have argued against blindly following the green standards, and that green buildings might be in fact unhealthy.
By focusing on efficient resource allocation, building designs have now neglected the health of the occupants However... Green buildings are not necessarily healthy.
Building designers have to take careful considerations not to place too much emphasis on resource efficiency, or risk the health of their occupants
There are other practical steps which we can take to make our environment healthier Our hypothesis and implications Specially built around existing trees, the state-of-the-art Education Resource Centre was awarded the Building and Construction Authority of Singapore’s Green Mark Platinum
Energy & Water Savings
Chilled Ceiling with low energy consumption, low noise and reduced draft, low operating and maintenance cost and reduced duct size
Rainwater collection with efficient irrigation system and rain sensors About U-town @ NUS Sustainable Architectural Features The use of Singapore Green Label Scheme products such as external paints, laminates
The use of recycled products such as carpets, timber deck at central courtyard, rubber tiles in ALT cluster, acoustic timber walls in lecture theatre
100% recycled polyester upholstery fabric is for all the lecture theatre seats and walls Environmental Protection Survey Results of Utown Conclusion of Case Study So why does this matter to you? As future employees (or even employers), most of us would be stationed in an office.
It would be beneficial if you are able to distinguish between SBS symptoms and illnesses
If symptoms disappear after leaving the building... that should be SBS. However.. A study had showed that by providing healthy environment for occupants, the cost savings from productivity and health would contribute to 70% of cost savings in the whole life cycle of a green building Scoring for New Non-Residential Building Thus our hypothesis: While green certificates are effective in helping us build better, more efficient buildings, the primary purpose of a green building is to protect the environment and not our health Assuming all conditions are similar, a person who lives in a green building can still be at the same level of health as someone who does not Scoring for New Non-Residential Building
Do you think that the Green Mark Scheme is SUFFICIENT in addressing the health aspect of the green buildings in Singapore?
What more could be done? Question: Let the investigation begin! Green building? Healthy? Daylight, strongly linked to human health, helps regulate our daily bodily rhythms
Office workers have a strong preference for good daylight. Studies in schools and offices showed significantly higher performance in tests (10-20%) in rooms with high predicted daylight factors
View out was associated with a 10–16 percent increase in performance in offices FACT Numerous studies have reported health and productivity increases linked to IAQ Indoor Air Quality (IAQ) A survey in an U.S. EPA report described that the average self-reported productivity loss due to poor IAQ was 3 percent. Poor IAQ--> Sick Building Syndrome
Good IAQ--> Better Productivity Thermal comfort Working in hot and cold environments can hinder performance and comfort.
Humidity also affects comfort.
A range of 40–60% relative humidity (RH) is generally considered acceptable Pollutants may arise from
ventilation system components etc. "Healthy" Indicators
Indoor Environmental Parameters... 1. 2. 3. Daylighting Ergonomics not appropriate: height of chairs & tables
Some common areas too cold for appropriate working comfort
Lighting (at some places is) too dark
Air-conditioned commons too quiet
Air-conditioned commons make eyes dry easily Minimal traces of Sick Building Syndrome in Utown
But, ergonomically, more can be done to improve the studying environment of Utown Is that really the case? Recap According to our case study, UTown, a green building, is not necessarily healthy.
Productivity is proportionate to IEQ
Detailed measurements would need to be undertaken for a clearer view Conclusion U-Town: A haven for muggers or...? Case Study:
ERC @ UTown r The end! Let Reporter K tell you more! Carpet Flooring - Traps dust, food waste etc. A Breeding ground for harmful organism! Computer screen that is too big? Affects eyesight? Building designed and orientation that encourage natural ventilation
Double vestibule doors that reduce cool air loss and minimize infiltration of humidity
Large sun-shading canopies and vertical green screens to provide shading and minimize heat transmissions Photocopiers emit ozone, VOCs etc. Are they too cold?
What about thermal comfort? Dust particles from the whiteboard may cause irritation. Our team of investigators went down to have a look... Q&A! By: Dettol
Samuel, Felicia, Si Rong,
Natalie, Zi Jie, & Kelly