Monday, May 25, 2015

Best Sustainable Architecture – part b

Best Sustainable Architecture – part b

I just cannot stop talking about Glenn Murcutt once I started. And in fact he is really an innovator of sustainable architecture. Therefore, just keep talking about him. Glenn restated that his architecture is nothing about style, it is site relevant piece of enclosure that provides the best living condition utilising the existing values on specific location. Sun light, wind, rainwater, trees are all elements to support his works other and concrete and steel.



In his houses, the interior temperature is always around 25 degree no matter it is 42 degree outside without a need of air conditioning. And the whole house can be opened at night time without a fear of dramatic temperature drop as the thermal capacity of materials has done the heating work for us. This cannot be done by just combining discrete elements in a building; it is achieved by a careful study and combination of site condition such as sun orientation and cool wind direction. This makes the houses from Glenn more of functionality and less vivid compared to other Pritzker Prize winners. The style is not much complicated and the value that such architecture conveys is effective. When we, as a architecture student, studies his building or taught by him, we will know and understand his way of thinking and convey them to next generations.

When I was camping with Glenn in last year to the South West Rocks, the thing I learnt from him is more than what I read from books or from the internet. He understand the tidal change totally through the colours of oyster shell, read the prevailing wind through the grass declining direction, the tree types and the significance of the local ecosystem. This is mainly because his childhood. Before four, he lived in a natural place that does not have any people within 15km. This raise his ability to harness and care about the environment. Therefore, protecting our green space is important to breed another “Glenn Murcutt”.

References:

Glenn Murcutt

Friday, May 22, 2015

Best Sustainable Architecture – part a

Best Sustainable Architecture – part a

Although it is sad to say this, it is so hard to find a new topic to talk about, hence I will go back to architecture that I am most familiar with. The upcoming few episodes will be all about the most recent and best sustainable design on earth now.

With the substantially increase concern on our environment, sustainable architecture needs to be more than just installing solar panel or green roof, it has to work as a whole integrated approach to sustainability and has special quality that is unique to others so as to pose as a exclamation mark in viewers’ heads.



The first quality that a building should have is the site awareness. Glenn Murcutt, who is the best Australian architect and won the Pritzker Architecture Prize for Australia, was my third year studio’s lecturer. I am glad that he is once my teacher. The first thing that he taught me is the importance of passion in architecture, and the second thing is the site awareness. Maybe this is his style of design, his claim is somehow reasonable. If a building that does not relate to the site, people will not feel resonances when they walk into the building. They won’t have a sense of what the site is about, what material is unique in the site, what view is valuable to have a look at, they are just in a piece of artwork, a box if worse. This isolated architecture can just stand without using the existing qualities found in the site, in other words, wasting all the good values. Therefore, a separated architecture can never be a sustainable architecture as it does not utilise local qualities and does not teach the future generation to use such quality.

References

The Top 10 Most Innovative Sustainable Buildings of 2014
http://www.fastcoexist.com/3029434/the-top-10-most-innovative-sustainable-buildings-of-2014

Monday, May 18, 2015

More and More and More Green Elements in Buildings – part c

More and More and More Green Elements in Buildings – part c

Rainwater harvesting is another fairly convenient green element in a building that is affordable by the local. Such system recycles water for irrigation or toilet flushing. In fact, such strategy is not an innovative thinking and has been used 4000 years ago in Greece.



But of course, the current system that most people use is much advance than the one used in ancient Greece. There are two main techniques of rainwater harvesting. The first one Is storing rainwater on surface for future use and the other is recharging them to ground water. The first scheme of collecting rainwater through gutter and pipe to the rainwater tank is widely used by public. And the later one that recharge water to the ground is a new concept that need further components such as trenches, dug wells, hand pumps, etc.

The benefits by rainwater harvesting are wide spread, ranges from the community, local councils to the developers. It reduces mains water consumption, water supply infrastructure costs and the requirements for new or bigger dams. Also, it improve water security of supply, asset protection such as lawns, gardens and motor vehicles, and storm water quality.

I don’t know how much water can be saved through such system, however, it works more than just a system that recycles water, but also a mind to protect and sustain our environment. With more and more green elements installed in a buildings, public show their care on sustainability.

References:

Elements of Green Building

Rainwater Harvesting

http://www.bluescopesteel.com.au/building-products/rainwater-harvesting

Friday, May 15, 2015

More and More and More Green Elements in Buildings – part b

More and More and More Green Elements in Buildings – part b

Passive solar design benefits Australian houses due to the large temperature difference climate. This kind of design uses sunshine to heat and light up the interior space so that the use of electrical devices can be minimised. The building orientation, placement of windows and certain materials can achieve this.

For Australia, the orientation is best for solar gain when elongated on an east-west axis. The building’s northern face should receive sunlight between the hours from 9a.m. to 3p.m. Interior spaces that requires the most light and heating such as living room, dining area should face the north, less used space should face the south. Placement of window should follow the orientation to maximise the northern sun gain. This is becaus heating is needed for nighttime when it is in winter, which has a large temperature difference from morning to evening.




The use of materials should have large thermal capacity. This benefits building both in summer and winter. Thermal capacity is the amount of energy required to heat up a degree in certain material. Therefore, if such material has high thermal capacity, it slows down the heat gain in summer afternoon, therefore cool the building interior. On the other hand, it reduces the heat loss in winter evening due to its large thermal capacity.

The proper design for passive solar gain can be done through a careful spatial management and massing. However, accounting on other issues such as site dimension and security reasons, the passive solar gain cannot be maximised in every individual building’s design. To averagely increase the family benefits from this, a collaborate building agreement from neighbours maybe a way out.

References:

Elements of Green Building
http://theconstructor.org/building/buildings/elements-of-green-building/5375/


Monday, May 11, 2015

More and More and More Green Elements in Buildings – part a

More and More and More Green Elements in Buildings – part a

Sustainable architecture has become a trend in modern society. Universities include environment architecture as compulsory subjects to graduate. I have taken two courses about sustainable science in my Bachelor degree. For the public, solar panels are installed on nearly every rooftop of suburban houses. Sustainable strategies become so close to us that every new buildings has include certain minimum level of sustainable elements into their design.



This entry will share about the most common green building design elements in local society. Vinyl window is an obvious sustainable elements. It can be easily found out in most building’s louver system installed for ventilation. This material is resistant against rust, rot, blistering, corrosion, etc. More importantly, the manufacturing energy is lower than traditional materials, with the aestheticism and flexibility that it conveys; it provides buyers a new option to choose from. The low thermal conductivity reduce the energy for heating and cooling, and hence the cost linked, make it even more advantageous.



Insulation is another important component in green building. The importance of insulation is shown from the reason why we cannot live in a house constructed by glass totally, as it will be extremely cold in winter, and hot in summer. Same as window, plastic is the new option for us to choose. Appropriate use of blown foamed insulation, which is made of plastics, creates less greenhouse gas per application than traditional materials. Researches have shown that energy use can be reduced up to 30% with a careful use of insulating material.


References:

Green Building Design Elements

Windows

Insulation
http://www.greenbuildingsolutions.org/Main-Menu/Design-Elements/Insulation