Sustainability

“BSB”is the abbreviation for BROADsustainable building (factory-made).Its sustainability is derived from 8aspects: earthquake resistance, energyconservation, air purification, durability,material saving, recyclable construction materials, construction materials free offormaldehyde, lead, radiation, asbestosand no construction sewage, dust orwastes. BSB has accomplished theextremity of these 8 aspects that today’shuman technologies can ever imagine.

9 Magnitude Earthquake ResistanceBROAD was a central air conditioningmanufacturer who exported its productsto over 70 countries. We developedsustainable buildings due to WenchuanEarthquake in 2008. One year since theearthquake, a team of 300 BROAD R & Dengineers has done hundreds of testing,and then invented integrated earthquakeresistancetechnology of “steel structure+ diagonal bracing + light weight”. ChinaAcademy of Building Research conductedearthquake resistance tests for 7-storey and30-storey sustainable building simulatorsscaled at 1:4 & 1:10, and accuratelyverified that earthquake resistance ofBROAD Sustainable Building is 3~12 timeshigher than that of conventional buildingsin the world (Magnitude 6~7, 0.05~0.12gon average; Magnitude 8, 0.22g highest).(See details in Earthquake ResistanceComparison List, test report & videodocumentary)

5X More Energy

EfficiencyBSBs adopt at least 30 different energysavingtechnologies. Ordinary peoplecan understand thick thermal insulation ofexterior wall & roof, multi-paned windows,external solar shading, heat recovery freshair, LED lighting, power generation byelevator descending & water-saving toilets.

Most countries in cold areas adopt 10cmthermal insulation & double - panedwindows, whereas BSBs adopt 35 cmthermal insulation and 5-paned windows;in warm winter and hot summer areas aswell as torrid areas, most countries useonly 3 cm thermal insulation or no thermalinsulation at all, whereas BSBs adopt 15 cmand 3 or 4-paned windows, which makeBSBs like a sleeping bag in winter anda cooler in summer. Another significantenergy-saving technology of BSB comesfrom BROAD-invented heat recovery freshair system. By exchanging heat betweenoutdoor fresh air and indoor exhaust air, itrecovers 70%~90% of energy and ensuresextreme freshness of the indoor air of BSBswith little energy loss. If we convert theHVAC energy consumption of buildings around the world into oil, it equals 35~70 L/ m2a, whereas BSBs is 7~12 L/m2a, which is 5 times more energy efficient. (See details in Energy Conservation Comparison List, and energy metering for each BSB is available for your check)

20X Purer Air

Air purification is the most crucial technology to eachhousehold. For it is closely related to people's life expectancyand various kinds of human diseases. WHO certifies that 68% ofhuman diseases are related to indoor air pollution. However,the value of air purification can be ignored most easily,because air pollution is invisible to naked eyes. We installair quality detectors in each room, residents can check theindoor PM (PM0.3, PM2.5 and PM10), formaldehyde and CO2level at any time and can at the same time compare withthe outdoor PM. In common people’s opinion, this detectorseems to be so expensive that a public debate needs to beheld on whether a country should invest a few sets of PM2.5monitoring devices for each city. But BROAD installs a detectorin every room. It’s definitely a technological revolution for theminiaturization and cost-lowering R & D process, which is likeputting a building-like computer some decades ago into asmall cellular phone today.

Another challenge is how to actualize "super filtration ". Atpresent, for the whole world, only IT chip assembly lines andsurgical operating rooms are using “super filtration” equipmentthat is even more costly than the building itself. Nevertheless,BROAD invented a low-cost “super filtration” technology andintegrated it into the heat recovery fresh air machine. It is acombined system with 3–stage filters. The first stage adoptsthe traditional coarse filter, collecting big particles; the secondstage utilizes BROAD-invented "electrostatic cleaner", followingthe principle of "positive attracts negative” to filtrate 98% ofPM0.3, PM2.5 & PM10, and then the remaining PM is filtratedby expensive "HEPA filters". The final air filtration efficiency canbe as high as 99.8%. When the fresh air is completely purified,PM can only be brought in by people from outside. Therefore,indoor air is at least 20 times purer than outdoor air (See detailsin Air Quality Comparison List, and air quality monitoring foreach room of BSB is available for your check).

Factory Made

BSB is the most profound innovation in human history. It has broken allthe preconceived concepts of people in all aspects from revolutionscope to innovation profundity, integration intensity of resources toclassification density of information, architectural industry mode toreal estate consumption mode.

The most revolutionary element about BSB is its construction mode: a3.9×15.6m “main board” including flooring and ceiling, embeddedshafts of ventilation, water supply & drainage, electricity and lighting.All needed pillars, diagonal bracings, doors, windows, walls andeven sanitary & kitchen wares for the room installation are placed onmain board for factory shipment. One truck can carry 120m2 mainboards and then deliver them to the construction site to be hoistedin installation place. What all workers need to do is just screwingbolts, painting……Such a high-efficiency construction mode makeson-site installation only account for 7% of the total constructionhours. Therefore, BSB can be 93% factory-made, whereas the currentworld’s highest is only 40%.

Amazing

When hundreds of millions of people were amazed at the video of“30-storey built in 360 hours” in the second week of 2012, most ofthem were still not aware of the more amazing figures hidden behindthe building in the video:

-9 magnitude earthquake resistance, compared with conventional buildings, the steel consumption is 10~20% less and concrete consumption is 80~90% less.

-5 times energy efficiency, 20 times purer air, 10%~30% lower in cost than that of conventional ones.

-Low cost, while the building automation level is even higher than that of the most advanced smart buildings in the world.

-Amazing construction speed, while zero injury during construction process.

-Perfect construction quality, while no fire, no water & no dust (no welding, no concrete, and no polish with emery cloth),construction waste is less than 1% of that of conventional buildings.

-We built the 30-storey hotel in 360 hours just to avoid the rainy season. However, building a starred hotel with 700 beds from ground breaking to opening in 48 days is definitely a miracle!

BSB is rewriting human history.