The Bombay High Court on Friday said with so many highrises coming up in Mumbai, BMC must ensure that appropriate safety measures are being taken by these buildings to fight fire.

A bench of Justice Abhay Oka and Justice Prakash Naik made the observation while hearing a PIL by activist Sharmila Ghuge urging fire safety audits for buildings in the city .The bench took note of BMC’s reply dated March 10, which stated that it is not possible to match the fire snorkel with the heights of the buildings.

The civic body’s reply had also stated that it is following the requirements of the National Building Code of India .But the bench questioned if it is being implemented by those constructing highrises.

The judges said that question is whether NBCI’s requirements are incorporated in the development control regulations. If not done, BMC must take steps to include them.

Source .: Times of India,

Image Source.: google.com

(0)

Flat is boring (though it is convenient to transport when it comes to flat packed furniture). But a Milan-based company is bringing three-dimensional triangular goodness to walls and ceilings with Wood-Skin, a composite materials that merges the rigidity, strength and beauty of wood, with the suppleness of textiles — designed to add an aesthetic punch to architectural surfaces, furniture and other sculptural elements.

02

Made out of digitally fabricated triangular tiles of Finnish birch sandwiching a nylon and polymer mesh in between, Wood-Skin is a pliable material that can be applied without the need for complex supporting structures underneath (no word on what type of adhesive is used; we hope it’s eco-friendly). Its simple triangles allows for complex forms to takes shape with minimum fuss. It looks modern, yet organic in its ability to bend, flex and deform into various shapes, all facilitated by the simple triangulation of its surface.

03

0405

According to Wired, designers Giulio Masotti and Gianluca Lo Presti first came up with the material as part of an open-source design competition back in 2012. They test drove the concept in Montreal, Canada, using it design part of the lobby of a local rock climbing gym. Says Masotti:

At that time we were looking for a solution that would fulfill our need to create complex shapes, every time different, based on a standard, but also ready to evolve in a smart, fluid, connecting system. What we created was a skin that would allow us to focus on the structure and would adapt to it, leaving the builder the total control with the flexibility to change the forms at any moment during the whole process.

0706

Wood-Skin can be made as modules, sheets or rolls, which can be put together to form one seamless surface. Its manufacturing process allows for a wide range of customization: you can change the angle of excavation to adjust the angle of deformation, you can change the thickness of the wood, you can even get a sheet of the stuff with irregular triangles.

In a recent collaboration with MIT’s Self-Assembly Lab, they are even starting to make self-transforming flat pack furniture with it. It comes flat, and with a simple tug, it magically pops up, ready to use, no fasteners or tools needed. Like their tiles, it’s designed to be flexible and reusable, says COO Susanna Todeschini:

The good thing about Wood-Skin is that you can disassemble and re-use it as many times as you want without throwing it in the trash. You can fold our furniture up and store it under the bed when you’re not using it.

wood-skin-mit-table.png.650x0_q70_crop-smart

So what might materials like this mean for the future of design? Well, at the least you can expect walls — or even outdoor facades — with a more striking aesthetic, and perhaps even furniture and surfaces that are programmed to morph and self-assemble on their own. Neat stuff. More over at Wood-Skin.

Source.: https://wood-skin.com/

(0)

German researchers develop a smart façade to save energy in glass-fronted buildings

 

Many glass-fronted office buildings are very energy intensive, requiring extensive heating in winter and cooling in summer to ensure comfortable temperatures for the building’s occupants.

In response to this challenge researchers at the Fraunhofer Institute for Machine Tools and Forming Technology IWU in Dresden teamed up with the Department of Textile and Surface Design at Weissensee School of Art in Berlin to find a smart solution to this problem.

They have created a thermally reactive blind made up of individual fabric components shaped like flowers.  Each component contains an integrated shape-memory actuator made of a nickel-titanium alloy that returns to its original shape when exposed to heat.  When the wires are warmed by sunlight they contract to open the textile components, covering the façade and preventing solar gains.  When the sun disappears the flowers close and the façade becomes transparent once again.

“When you bend the wire, it keeps that shape. Then when you expose it to heat, it remembers the shape it had originally and returns to that position. Picture the façade element as a sort of membrane that adapts to weather conditions throughout each day and during the various seasons of the year, providing the ideal amount of shade however strong the sun,” says Andre Bucht, researcher and department head at Fraunhofer IW.

Since the façade relies solely on thermal energy and doesn’t require an external power source it relatively easy to integrate into buildings.  It can either be attached to the external glass or the space in between multi-layer facades.  The design is flexible and different choices of pattern, shape and colour can be used, depending on requirements.

The project is an excellent demonstration of how great inn ovation happens when engineering and the arts work together to solve problems.  A demonstrator piece will be on display at Hanover Messe 13 – 17 April 2015.

The research team is currently seeking industry partners to develop prototypes that will undergo long-term testing on buildings at the institute, with a view to launching on the market in 2017.

 

Source.: Image © Bára Finnsdóttir, Weißensee School of Art Berlin

(0)

Windows and solar panels in the future could be made from one of the best — and cheapest — construction materials known: wood. Researchers at Stockholm’s KTH Royal Institute of Technology have developed a new transparent wood material that’s suitable for mass production.

 

Lars Berglund, a professor at Wallenberg Wood Science Center at KTH, says that while optically transparent wood has been developed for microscopic samples in the study of wood anatomy, the KTH project introduces a way to use the material on a large scale. The finding was  published in the American Chemical Society journal, Biomacromolecules.

“Transparent wood is a good material for solar cells, since it’s a low-cost, readily available and renewable resource,” Berglund says. “This becomes particularly important in covering large surfaces with solar cells.”

Lars Berglund, a professor at Wallenberg Wood Science Center at KTH, says that while optically transparent wood has been developed for microscopic samples in the study of wood anatomy, the KTH project introduces a way to use the material on a large scale. The finding was  published in the American Chemical Society journal, Biomacromolecules.

“Transparent wood is a good material for solar cells, since it’s a low-cost, readily available and renewable resource,” Berglund says. “This becomes particularly important in covering large surfaces with solar cells.”

Berglund says transparent wood panels can also be used for windows, and semitransparent facades, when the idea is to let light in but maintain privacy.

The optically transparent wood is a type of wood veneer in which the lignin, a component of the cell walls, is removed chemically.

“When the lignin is removed, the wood becomes beautifully white. But because wood isn’t not naturally transparent, we achieve that effect with some nanoscale tailoring,” he says.

The white porous veneer substrate is impregnated with a transparent polymer and the optical properties of the two are then matched, he says.

“No one has previously considered the possibility of creating larger transparent structures for use as solar cells and in buildings,” he says

Among the work to be done next is enhancing the transparency of the material and scaling up the manufacturing process, Berglund says.

“We also intend to work further with different types of wood,” he adds.

“Wood is by far the most used bio-based material in buildings. It’s attractive that the material comes from renewable sources. It also offers excellent mechanical properties, including strength, toughness, low density and low thermal conductivity.”

The project is financed by the Knut and Alice Wallenberg Foundation.

Source.: https://www.kth.se/en/

(0)

Fire is a Chemical Reaction, with the rapid oxidation of a material in the exothermic chemical process releases heat, light, and various reactionproducts.

 01
The fire triangle: The fire triangle identifies the three needed components of fire

1)    Fuel (something that will burn)

2)    Heat (enough to make the fuel burn)

3)    and Air (oxygen)

All three components must be present to have a fire. In more recent years, a fourth component – the uninhibited chain reaction – has been added to explain fire. In other words, the chain reaction provides the heat necessary to maintain the fire.

The removal of any part of the fire triangle heat, fuel and air (oxygen) will result in the extinguishment of the fire.

Stages of fire

  • Stage 1: Heating
  • Stage 2: Decomposition
  • Stage 3: Ignition
  • Stage 4: Combustion
  • Stage 5: Propagation

How fire spreads: Fire spreads by transferring the heat energy from the flames in three different ways.

  • Conduction:Conduction is the transmission of heat through materials. When there is sufficient heat present, it may be enough to ignite fuel through other objects. Combustible materials, for example, are most susceptible to heat transmissions.
  • Convection:This is defined as the transmission of heat within a liquid or gas and is due to their difference in density. Heated liquid or gas expands and becomes lighter, thereby becoming displaced by their heavier counterpart. When this happens, oxygen is drawn in, further inciting the chemical chain reactions. The rising gases, meanwhile, go up to fuel the upper floors.
  • Radiation:This is the transmission of heat by waves travelling until heat is absorbed by other objects. Burning buildings can radiate heat to surrounding structures, sometimes even passing through glass windows and igniting objects inside.

02

 

Four ways to put out a fire

  1. Cool the burning material
  2. Exclude oxygen
  3. Remove the fuel
  4. Break the chemical reaction

However, with the right fire retardant ACP in building façade, heat generation can be restricted by endothermic reaction. Fire retardant ACP can be used to prevent or delay the failure of steel and concrete structures exposed to fire. By choosing fire retardant ACP you can form a passive fire fighting system that will protect your property and save lives.

DETAILS OF CHEMICAL REACTION

CORE DETAILS POLYETHYLENE ALUMINIUM HYDROXIDE MAGNESIUM HYDROXIDE
CHEMICAL REACTION (-CH2-) + O2 = CO2 + H20 2Al(OH)3 = Al2O3 + 3H2O Mg(OH)2 = MgO + H2O
DECOMPOSITION TEMPERATURE 90OC to 110OC 160OC to 170OC 350OC to 360OC
STATUS HEAT GENERATION HEAT ABSORPTION HEAT ABSORPTION

TOLL FREE: 1800 102 0407

www.aludecor.com

(0)

 

 

HofmanDujardin_Bloomframe_prototype_03

Designed by Amsterdam-based firm HofmanDujardin Architects and developed by renowned French manufacturer Kawneer, the Bloomframe balcony has been on the drawing board for many years now. A computer-generated demonstration caused a stir across the internet as far back as 2008, offering a tantalizing glimpse of how the product could animate the exterior of luxury skyscrapers across the globe, from Manhattan high-rises to Parisian condominiums.

Late that year, a working prototype was presented at the international construction exhibition “Batimat” in Paris. The 1:1 scale model shows an upper glass section coupled with an opaque panel that folds down to become the floor of the balcony. Engineering details for such a device have proven challenging to perfect, though, and Kawneer is continuing development to ensure the balcony is robust enough without compromising on the sleek, modern aesthetic.

At the beginning of 2016, HofmanDujardin released an updated video of the Bloomframe in an enticing new context: an entire apartment building is shown with dozens of balconies emerging and retracting across an elegant façade of glass and obsidian steel. Issues of cost and maintenance would suggest these kinetic windows will not become ubiquitous, but for high-end residential developments in New York and further afield, it may well be an attractive option for architects and clients alike.

Source from :. HofmanDujardin, Architizer

(0)


What is a tropical cyclone?


 

A tropical cyclone is a storm system that is characterized by a low-pressure centre which produces strong winds and flooding rain. A tropical cyclone feeds on heat released by the condensation of moist arr.

The latent heat gets converted into kinetic energy and feeds the strong winds and feeds the strong w emerging out of it. Because of its warm centre, it’s often called a warm core storm system. Cyclonic storms have counter-clockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere.

They help in the global atmospheric circulation by carrying heat and energy away from the tropics towards temperate latitudes.


 

How is the intensity of a tropical cyclone measured?


 

Recently, Fiji was hit by Winston, a Category 5 tropical cy clone, strongest ever to hit the island as well as the strongest tropical cyclone on record in the Southern Hemisphere.

Tropical cyclones are ranked according to their maximum winds.

Saffir-Simpson Hurricane Scale is the classification system used for Atlantic and East Pacific hurricanes.

Lone that hit the island had a estimated wind speed of 185 mph.


 

What are the different types of tropical cyclones?


 

Tropical cyclones are formed in eight basins -Northern Atlantic, Northeastern Pacific, North Central Pacific, Northwestern Pacific, Northern Indian Ocean, Southwestern Indian Ocean, South and Southwestern Pacific and Southeastern Indian Ocean.

Each basin has a different naming system.

In the North Atlantic Ocean, Northwest Pacific Ocean east of the International Date Line and South Pacific Ocean, they are called hurricanes.

Typhoon is the name given in the Northwest Pacific Ocean west of the dateline.

In southwest Pacific Ocean and southeast Indian Ocean, it’s called a severe tropical cyclone. Similarly, tropical cyclones in the north Indian Ocean and southwest Indian Ocean are called severe cyclonic storm and tropical cyclone respectively.


 

What is a storm surge?


 

A storm surge is an offshore rise of water caused by the low-pressure system of a tropical cyclone. During the cyclone, high-speed winds start pushing on the ocean’s surface which piles the water up higher than sea level.

The low pressure center of the cyclone adds to the surge and the combined effect causes flooding.Storm surges are particularly damaging when they occur at the time of a high tide.

Source.:

The Times of India,
Article Date : 02/22/2016

 

(0)

We all know that aluminium has a very good corrosion resistance. Untreated aluminium spontaneously forms a thin but strong oxide layer that resist further oxidation. Aluminium oxide is impermeable and it forms a strong bond with the parent metal. If damaged mechanically, aluminium oxide layer repairs itself immediately. This is why aluminium has good corrosion resistance properties. However, the reason why we need coating on architectural aluminium application, is to ensure the weatherability or long service life of aluminium surface.

Following are the different types of aluminium corrosion

  1. Galvanic Corrosion
  2. Pitting
  3. Crevice Corrosion
  4. Aluminium in the open air
  5. Aluminium in soil
  6. Aluminium in water
  7. Aluminium and alkaline building material
  8. Aluminium and chemicals
  9. Aluminium and dirt
  10. Aluminium and fasteners

Most common types of aluminium corrosion’s are

  • Galvanic Corrosion
  • Pitting
  • Crevice Corrosio

One more special type of corrosion is stress corrosion which leads to crack formation. It occurs in high strength alloys like AlZnMg alloys and most of the time subjected to tensile stress in the presence of a corrosive environment. This is not observed in common AlMgSi alloys.

Now as Aluminium Composite Panel manufacturer we have to ensure that aluminium alloys used as skin at the top and the bottom should perform well in terms of weather-ability or long service life. It must be understood that corrosion is primarily an aesthetic problem and practically speaking, never affects the strength of the metal itself. But it does contribute to delamination, blistering, peel-off etc., all of which contribute to failure of the ACP. Surface treatment like anodizing, painting or various coating methods counteracts corrosion in aluminium.

So, durability of aluminium can be ensured by coating only and weather-ability or long service life of ACP also depends on superior quality of coating on aluminium surface.

(0)

Smart Glass Market Growth will be driven by rising Global Energy Consumptions

By 2020 Global demand for High performance glass is set to rise as with the current trend & scenario with rising Environmental Issues in the Country. On one hand we want to build smart cities but on other hand existing Metros have very poor Air Quality.

Optimal Energy Savings is driving the smart glass market in the Commercial sector with few developers realizing the need of the country to save energy consumption for the occupied premises & save the Country’s Environment.

Despite high Energy cost the energy supply demand Gap is increasing. Switching to smart Glass for Government Building, Commercial Complex, and Residential Buildings, Schools, Hotels & even Shop fronts will optimize the consumptions.

Today’s smart glass helps a developer to achive more Light in & block the heat to largest extent.

Benefits of Smart Glass

  • Less Heat coming inside thereby increasing efficiency of the Building.
  • Saves Money on day to day Electricity consumptions.
  • More Light Entering helping in daylight planning.
  • Very Less Payback period against the initial capital investments.
  • Blocks UV rays thereby not fading the interiors like Curtains, Paints & furniture of the occupants.
  • Increases efficiency of the Façade on long term basis.

 

 

 

  Current Options in Efficient Glass Category

The current range available in the country for Energy Efficient Glasses from Manufacturers like Asahi are Brook Series with Blue, green & clear option with better Light transmittance & low Solar factors.

Saint Goban provides Coolite Series, Evo series, Nano Series & various other combinations of advanced products.

Pilkington offers glasses which are imported from its various manufacturing locations across North America, Europe, Middle East, South America. Pilkington Eclipse Advantage, Solar E & Solar E plus are effective in Single & double forms.

Currently Guardian being 4th Aggressive player offering SunGuard Solar Series, High performance series & high selective series from their respective plants across the globe.

With this various options available which can be easily Tempered, Double Glazed, laminated from processors across India.

 

Conclusion

One has to know that using a Energy Efficient Glass on their project, One not only reduced the consumption of Electricity but also is part of global Environment Policy as an Individual participant to save Earth.

 

For any further assistance mail us at

Info@glazingshopee.com

Whatsapp on 09324789080 your Requirement we can help you build a efficient façade.

 Source – AIS, Saint gobain , Pilkington & Guardian Catalogue.
Posetd on: Dec 19, 2015
(0)

NzeB- Have you heard about this?

Nearly Zero Energy Buildings is the target of European Building Policy, where by end of year 2020, all the new constructions should be consuming as minimum energy & could use more renewable sources.

 

How to achieve  “Nearly Zero Energy Building”

Two major factors will help you achieve

  • Adaptive Facade on buildings.
  • Onsite demand with renewable energy generations.

 

Adaptive Facade on Buildings

Adaptive façade is an intelligent façade which differs from normal façade as it has various variable devices that helps to act as climate moderator.

By using this façade we provide a building an ability to accept or reject energy from external environment & in turn reduce the excess energy required to keep a comfort zone internally.

How an Adaptive Façade help in creating a nearly Zero Energy Building.

  • Selection of appropriate design based on building typology & Climatic location.
  • An ideal adaptive façade is the one which is able to minimize the total energy consumption of indoor space by means of adapting thermo-optical properties to varying outdoor/ indoor environmental studies like Solar Radiation, Air temperature, Wind velocity, Internal Loads & various factors effecting the façade.
  • Extensive research being done & a 365 days energy absorption through the façade is studied on micro level basis to reduce the net heat gain / or to increase the heat gain based on climatic location.
  • This study also studies the micro consumption of energy room wise in order to assess performance of the façade.
  • Evaluation of adaptive façade is performed by means of minimizing energy consumption of building.
  • There are adaptive ceramic frittings which moveable graphical pattern that can modulate its transparency to control light, heat gain & aesthetic looks into the façade.
  • Total Energy Consumption = E heating + E cooling + E lighting.

 

Onsite Demand with renewable Energy generations

Onsite supply can be boosted with use of optimal Solar PV module, where in our last article we covered a recent invention of glass highly effecient than conventional solar module. These methods would boost energy productions without effecting fossil fuels & thus minimizing Co2 emissions & other green house gases effecting the earths global warming.

 

Conclusions-

With energy crisis across globe & an intent to reduce carbon emissions a lot focus is driven on saving energy as it is always said in simple words

“ A unit Saved is Unit Earned”

 

Source-

www.studiocomi.com

www.powerhouseeurope.eu

Posetd on: Oct 16, 2015
(0)

Researchers in Japan have created an unbreakable new glass that is reportedly as strong as steel. This breakthrough could see the new material revolutionise the use of glass in buildings, cars and technology, and it should be available within five years.

The glass, whose composition is 54Al2O5-46Ta2O5, underwent strength, hardness and elasticity tests including Young’s modulus and Vickers methods. The tests revealed that the glass was twice as strong as typical glass and evidently rivalled that of steel and iron.

 

For more read Article Source

http://www.ibtimes.co.uk/unbreakable-glass-thats-strong-steel-created-by-scientists-japan-1526816

Posetd on: Nov 4, 2015
Source: http://www.ibtimes.co.uk
(0)

Sustainable Facades

One could have observed an absurd climatic change in the country where sudden rains, unbearable heat & lot of climatic issues arising. With the modernization of building facades lot of glass buildings coming up there is a need for Sustainable Façade.

The modern façade becomes Sustainable in regards to the thermal & functional performance not compromising on the aesthetics.

 

For any building two important aspects come to the developer

  • Investment on the construction of facade.

It is preferable for any building façade to be durable on the long run & usage of recyclable materials needs is increased. Fortunately most of the façade materials like Aluminium, Glass, ACP, Solid cladding has reusability properties, and one can recycle & reuse them.

  • Operating cost of the facade.

People have a tendency that as they are not the occupants of the buildings any low quality materials can be used & somehow the façade needs to be completed.

This is a wrong approach as in today’s scenario Operating cost is very high in terms of Electricity bills of HVAC, Lighting & various mechanical utilities used in a building. So it must be very crucial for the designer to save energy as & where possible. For example Glass is major transmitter of heat inside the building, hence Glass can be designed to suit the climatic conditions.

Core Aspect of an intelligent façade:

Façade are responsible for the comfort of the occupant within the building & at the same time consumption of Energy. One needs to incorporate various strategies to achieve Low Energy consumption in a building.

Various important Aspects of Effective Design:

  • Maximizing Day Lighting Strategies.
  • Blocking Heat in South & South West Area using Louvers & Blinds.
  • Insulating the Spandrels to block the heating of RCC structures.
  • Generating Electricity by using Photovoltaic cells.
  • Utilization of Pressure Differentials.

Classification of Intelligent Facades:

  • Single Skin Façade.
  • Double Skin Façade.
  • Combined Façade

Single Skin Façade:

To achieve a certain level of Solar Control in Single Skin façade following things to be done

  • Use Effective Solar Control Glass with Low Solar Factor & Low U values.
  • Use of better Gaskets (EPDM) to thermally break the heat transfer of conduction.
  • Pressure Equalized facades helps in proper Air Circulations inside the chambers to drive water & heat away trapped inside.
  • Use of perforated Panels in high heat areas to have optimized day lighting & blocking unwanted heat.
  • Various Internal Shading strategies can be adopted to block the Glare & incoming heat.

 

Double Skin Façade:

The term double skin facade refers to an arrangements with a glass in front of the actual building a facade. Solar control devices are placed in the cavity between these two skins, which protects them from the influences of weather and air pollution.

  • Solar shading helps achieve optimized temperature inside.
  • Re-radiation from the solar radiation is emitted in the central cavity.
  • Better Sound Control by creating a cavity in between two facades.
  • Widely used in high rises to have less effect of wind & cavity helps as natural ventilation zones.
  • Very Expensive in terms of cost, so very few building used.

 

Combined Facades

This is combination of single & double skin facades by providing a baffle panel in the vision area helping in reducing noise levels in the building.

  • Baffle panel is an additional panel in front of a window in a perforated or conventional panel.
  • Baffle Panel blocks lot of sound comes from the primary façade.
  • Baffle panel helps in solar screening.
  • Baffle panel needs to be openable for cleaning, & ventilation.

 

Conclusion:

Because of reduction energy resources and increasing cost in the world every day, energy conservation in buildings primarily focused on building systems. After 2010, targeting the energy crisis, which can produce its own energy, ventilation, heating and cooling that provides “intelligent facades” came up.

No doubt in the short run these facades are expensive but in Long run they pay you back in terms of Cost, Better Environment & Sustainability.

 

For Further any info do mail us at info@glazingshopee.com

 

Source : www.pinterest.com

www.google.com

www.battlemacarthy.com

 

 

Posetd on: Nov 30, 2015
Source: http://www.glazingshopee.com
(0)

CASE STUDY:

 2008 was a big year for China as Beijing had won the bid to host the Summer Olympics. The Chinese Government had grand plans to prepare their country as host nation for this worldwide event. Included on the list was a state-of-the-art, eye-catching facility from which China Central Television could share the Olympics with the world.

 China Central Television

 A Geometric Wonder

Standing in a Seismic Zone

GE Silicone and Comprehensive Technical Expertise Critical to CCTV Construction

 

The Challenge:

 Connecting Two Buildings in a Seismic Zone:

The winning design, shaped like two “L” shaped high-rise towers linked at the top and the bottom at an angle to form a loop, best described as a “Z criss-cross,” was planned for a modest 234 meters. However, the building’s unique shape created an irregular grid on the building’s façade with an open  center, a challenge for a structure that connected two separate buildings on a foundation in the middle of an earthquake zone.

Constructing 27,400 Pieces Safely and Quickly:

The building, centered with a curtainwall façade, required 27,400 pieces, all of untraditional shapes and sizes, to fit within an irregular structural frame totaling 100,000 square meters (~1.1 million square feet). In addition to the many pieces, the designer and the fabricator determined that the safest way to construct the many pieces into a “Z” shape was with “L” shaped joints, which were longer in vertical length than horizontal length.

The challenges mounted:

Irregular geometric pieces take longer to manufacture and install; safety for everyday use and within seismic conditions was paramount; and the international stage of the Olympics presented a hard, quickly-looming, deadline.

location: Beijing; China.

challenge: The buildings unique shape created an irregular grid on the buildin’s facade with an open centre, a challenge for a structure that connected two separate buildings on a foundation in the middle of an earthquake zone.

number of floors: 49 floors.

building height: 234 metres

structure: Shaped like a “Z criss cross” in Beijing’s central buisness district; with an earthquake zone.

products: GE SSG4400 UltraGlaze*, GE SSG4800J UltraGlaze*

(custom multi-part mixture), GE SCS2903 SilPruf*, Pensil 300

 

The Solution:

 Excellent Technical Support and Sealant

 

Mechanical Properties:

The Chinese Government selected Beijing Jangho Curtain Wall Co., Ltd., the second biggest curtainwall fabricator in China, as the façade fabricator. The manufacturer of GE sealants and Jangho have had a strong history of collaboration and success.

“We needed a partner who had both a technical product advantage and the ability to manage the inevitable technical challenges that would come in creating a building with such an unusual design,” says Zhang Sheng, vice president at Jangho.

While Jangho recognized GE Sealants as excellent products, it would take more than that to construct the China Central Television (CCTV) building. Basic geometry implies that two equal size triangles will create four-sided shapes. The challenge was taking irregular geometric frames with lots of triangles within a system designed around rectangular calculations. Assembling such panels makes the dimensions difficult to control, so every millimeter counted, and excellent adhesion and flexibility to stick on the panels was critical.

In addition, to meet earthquake safety standards, the fabricator selected dual-laminated insulating glass, so the structural sealant needed to be applied into an “L” joint through narrow openings. Conventional SSG joints require a +/-12.5 percent movement. In examining the “L” joints needed for the project, the sealants team of technical experts determined that a +/- 15 percent movement was necessary.

“The technical experts for GE sealants spent countless hours working with our design department and going back and forth between the work site and our Beijing plant to find a solution for the uniquely sized pieces and “L” shaped joints,” says Sheng.

“Together we tested to find the right product that had the product consistency to fit within the sealant joints; and that is why we selectedGE sealants for the CCTV.”

Redefining Limitations:

The technical experts for GE sealants had clear challenges to consider in recommending the right mix of products. The design process resulted in two towers that, as independent towers, were prone to movement from the wind and surface temperature variations due to the amount of direct sunlight or shade on any given elevation.

GE SSG4400 UltraGlaze*, a high-strength, two-part elastomeric adhesive sealant for structural bonding, passes the ASTM C719 movement test at Class 12.5. Due to the large size of glass and the “L” shaped joints, +/-15 percent movement capacity was deemed necessary for this design. The sealants team conducted multiple tests on the work site and at Jangho’s lab to help determine that, with its excellent processing and flowability (which allowed the sealant to get within the uniquely shaped joints), coupled with its ability to accommodate the additional 15 percent movement,SSG4400 had the properties needed to successfully and safely construct the building.

Through a thorough analysis and deep technical discussions between the fabricator curtainwall providers and the sealants team, it was determined that SSG4400 would be “pumped” into the uniquely shaped joints. The consistency of SSG4400 in testing proved to be both viscous enough to hold the joints stable during the cure phase, as well as capable of flowing into tight spaces while thoroughly filling the cavity within.

The Result:

The CCTV building was completed in January 2008. Start to finish, the façade fabrication took about 18 months—six months quicker than the average for a building as complex as CCTV.

To stay on track with the aggressive timeline, Jangho ordered all of the aluminum extrusions and pieces prior to involving the sealants team. If Jangho, with the help of the sealants experts, hadn’t found a solution to the “L” shape joint, the project would have been significantly delayed and the original aluminum order would have been wasted.

“One of the reasons we partner with the manufacturer of GE sealants is because we are a local company and they are a global company,” says Sheng. “Once again, they helped us with global experience, tapping into their experience so that we could best serve our customer through their sealant laboratory and excellent training programs.”

Pioneered by GE. Refined by GE. With a history of dedication to innovation and excellence, today’s family of GE sealantproducts address a wide variety of the ever-inventive, increasingly demanding architecture found around the world. Outstanding durability, flexibility, and movement capability are fundamental to the high performance of GE sealants. With decades of experience, in new and remedial applications, on some of the world’s most innovative structures, the GEsealants team provides knowledge and comprehensive support to help ensure a project is successful.

 Visit www.ge.com/silicones

APPLICATION: Each customer should determine the suitability of Momentive’s materials for the customer’s particular use through appropriate testing and analysis. Due to variability of substrates, testing for substrate compatibility is recommended. Appropriate surface preparation is required. Actual results may vary.

The participants in the CCTV project mentioned herein are provided solely as historical background information. This advertisement does not constitute an endorsement from such parties, except to the extent expressly provided herein.

GE is a registered trademark of General Electric and is under license by Momentive Performance Materials Inc. Huntersville, NC 28078.

(0)

Smart Glass Market Growth will be driven by rising Global Energy Consumptions

By 2020 Global demand for High performance glass is set to rise as with the current trend & scenario with rising Environmental Issues in the Country. On one hand we want to build smart cities but on other hand existing Metros have very poor Air Quality.

Optimal Energy Savings is driving the smart glass market in the Commercial sector with few developers realizing the need of the country to save energy consumption for the occupied premises & save the Country’s Environment.

Despite high Energy cost the energy supply demand Gap is increasing. Switching to smart Glass for Government Building, Commercial Complex, and Residential Buildings, Schools, Hotels & even Shop fronts will optimize the consumptions.

Today’s smart glass helps a developer to achive more Light in & block the heat to largest extent.

Benefits of Smart Glass

  • Less Heat coming inside thereby increasing efficiency of the Building.
  • Saves Money on day to day Electricity consumptions.
  • More Light Entering helping in daylight planning.
  • Very Less Payback period against the initial capital investments.
  • Blocks UV rays thereby not fading the interiors like Curtains, Paints & furniture of the occupants.
  • Increases efficiency of the Façade on long term basis.

 

 

 

  Current Options in Efficient Glass Category

The current range available in the country for Energy Efficient Glasses from Manufacturers like Asahi are Brook Series with Blue, green & clear option with better Light transmittance & low Solar factors.

Saint Goban provides Coolite Series, Evo series, Nano Series & various other combinations of advanced products.

Pilkington offers glasses which are imported from its various manufacturing locations across North America, Europe, Middle East, South America. Pilkington Eclipse Advantage, Solar E & Solar E plus are effective in Single & double forms.

Currently Guardian being 4th Aggressive player offering SunGuard Solar Series, High performance series & high selective series from their respective plants across the globe.

With this various options available which can be easily Tempered, Double Glazed, laminated from processors across India.

 

Conclusion

One has to know that using a Energy Efficient Glass on their project, One not only reduced the consumption of Electricity but also is part of global Environment Policy as an Individual participant to save Earth.

 

For any further assistance mail us at

Info@glazingshopee.com

Whatsapp on 09324789080 your Requirement we can help you build a efficient façade.

 Source – AIS, Saint gobain , Pilkington & Guardian Catalogue.
(0)

Sustainable Facades

One could have observed an absurd climatic change in the country where sudden rains, unbearable heat & lot of climatic issues arising. With the modernization of building facades lot of glass buildings coming up there is a need for Sustainable Façade.

The modern façade becomes Sustainable in regards to the thermal & functional performance not compromising on the aesthetics.

 

For any building two important aspects come to the developer

  • Investment on the construction of facade.

It is preferable for any building façade to be durable on the long run & usage of recyclable materials needs is increased. Fortunately most of the façade materials like Aluminium, Glass, ACP, Solid cladding has reusability properties, and one can recycle & reuse them.

  • Operating cost of the facade.

People have a tendency that as they are not the occupants of the buildings any low quality materials can be used & somehow the façade needs to be completed.

This is a wrong approach as in today’s scenario Operating cost is very high in terms of Electricity bills of HVAC, Lighting & various mechanical utilities used in a building. So it must be very crucial for the designer to save energy as & where possible. For example Glass is major transmitter of heat inside the building, hence Glass can be designed to suit the climatic conditions.

Core Aspect of an intelligent façade:

Façade are responsible for the comfort of the occupant within the building & at the same time consumption of Energy. One needs to incorporate various strategies to achieve Low Energy consumption in a building.

Various important Aspects of Effective Design:

  • Maximizing Day Lighting Strategies.
  • Blocking Heat in South & South West Area using Louvers & Blinds.
  • Insulating the Spandrels to block the heating of RCC structures.
  • Generating Electricity by using Photovoltaic cells.
  • Utilization of Pressure Differentials.

Classification of Intelligent Facades:

  • Single Skin Façade.
  • Double Skin Façade.
  • Combined Façade

Single Skin Façade:

To achieve a certain level of Solar Control in Single Skin façade following things to be done

  • Use Effective Solar Control Glass with Low Solar Factor & Low U values.
  • Use of better Gaskets (EPDM) to thermally break the heat transfer of conduction.
  • Pressure Equalized facades helps in proper Air Circulations inside the chambers to drive water & heat away trapped inside.
  • Use of perforated Panels in high heat areas to have optimized day lighting & blocking unwanted heat.
  • Various Internal Shading strategies can be adopted to block the Glare & incoming heat.

 

Double Skin Façade:

The term double skin facade refers to an arrangements with a glass in front of the actual building a facade. Solar control devices are placed in the cavity between these two skins, which protects them from the influences of weather and air pollution.

  • Solar shading helps achieve optimized temperature inside.
  • Re-radiation from the solar radiation is emitted in the central cavity.
  • Better Sound Control by creating a cavity in between two facades.
  • Widely used in high rises to have less effect of wind & cavity helps as natural ventilation zones.
  • Very Expensive in terms of cost, so very few building used.

 

Combined Facades

This is combination of single & double skin facades by providing a baffle panel in the vision area helping in reducing noise levels in the building.

  • Baffle panel is an additional panel in front of a window in a perforated or conventional panel.
  • Baffle Panel blocks lot of sound comes from the primary façade.
  • Baffle panel helps in solar screening.
  • Baffle panel needs to be openable for cleaning, & ventilation.

 

Conclusion:

Because of reduction energy resources and increasing cost in the world every day, energy conservation in buildings primarily focused on building systems. After 2010, targeting the energy crisis, which can produce its own energy, ventilation, heating and cooling that provides “intelligent facades” came up.

No doubt in the short run these facades are expensive but in Long run they pay you back in terms of Cost, Better Environment & Sustainability.

 

For Further any info do mail us at info@glazingshopee.com

 

Source : www.pinterest.com

www.google.com

www.battlemacarthy.com

(0)