RE : reshape rebirth retake recompose rejuvinate reacclimatize reintegration reboot redefine re-claim reabsorb revive reincarnate reintegrate reearn regain relocate readress reinforce rebal-ance reinterpret reforge refurnish rediscover reenergize rename readapt recharge reawakenrestart repair reinspire relaunch reinvigorate re-deem realign reinvent rediscover restart reana-lyze reformat reemphasize recycle reflect reset reimplant reappear reembody reexplore rear-range regrow rehabitate rearticulate reinstall rebalance refocus redesign rekindle reattachrerecuperate refuel reedit restore reaccel-erate react refine reidentify rejoice reanimate rethink reassemble rechannel reasure redraw redevelop reload reestablish reaccept recol-lect reactivate reinterpret reaquire reunitebg 14

overall concept

2

like a huge block of clear ice it floats solemnly in the bright summer sky, sparkling every now and then as it catches the rising sun. as my perspective changes, the surface suddenly reflects the surroundings and the blue sky instead making it almost disappear from sight. entranced i stop to watch the shimmering mass adapt to the low sun, dim-ming down to a pale and cloudy white with streaks of icy blue... a truly amazing sight rivalled only by the reversed gesture later that night its very core exposed to the surroundings, flooding it with a bright and warm glow to light up the starry night.

BLOCK OF ICE CATCHING THE SUN

overall conceptIn its current state BG14 is divided into sep-arate volumes trying to appear smaller, but instead becomes undefined and inconsist-ent. This concept wraps the building in a special designed building envelope to join together these fragments into a single solid volume. By expanding the mass of the build-ing towards north and west and letting the envelope extend over the lift structure in the east and on the roof, the building is turned into an elegant floating mass. Instead of hiding, this concept turns the vast size into simple elegance, strength and grandeur.

Whether arriving from train or metro from the Terminal, leaving Byporten Shopping or using the footbridges to cross Biskop Gun-nerus Gate all soft traffic is at +6 meters and currently floats right past the BG14 en-trance. Thus a Floating Plaza is introduced welcoming the flow into the very core of the public parts of the building. This floating city square creates a place of refuge from the intense traffic below and seamlessly ties to-gether the disjointed flows. This gesture bal-ances that even when the expansion takes from the city - it gives more back in return.

Two public-feature voids are cut into the mass. Roof floors house a high profile bar and restaurant using the green void as a park-like Sky Garden for outdoor serving with a great view. To the west the existing dull pas-sage from the Terminal is transformed into a 5-story tall green recreational flow space with slender columns carrying the expansion above. Through this passage commuters get a brief respite from daily stress and are invited into the lower levels of BG14 through a completely open west faade, blurring the border between indoors and outdoors.

bg14 expansion green voids floating plaza food court street belowOn the ground floor the Food Court expands under the Floating Plaza as an indoor spe-cialties food market with foreign cuisines and fresh ecological products. Through circular holes cut into the plaza above, structural col-umns, stairwells, trees and sculptures pierce through to the open air above connecting the two levels. A large double-spiral bicycle ramp connects both of these levels with the bicycle parking area in the basement, creat-ing a direct and intuitive connection between city and parking, while turning the basement level into a part of the public squares above.

The three lower floors of the building are turned into a Food Court - an open, wel-coming and dynamic space housing exqui-site food specialties from all over the world. A central atrium in the hearth of these floors connects them both visually and physically. This also makes the Food Court a natural part of the flow between the ground floor traffic, the Floating Plaza, the Terminal and the entire Oslo City. These public floors are completely transparent, exposing the features inside, while making the massive volume above seems to hover weightlessly.

3

OVER

ALL C

ONCE

PT S

KETC

H ST

EP-B

Y-ST

EP

facades

NORTH FACADE VEST FACADE 1:500 1:5004

facades

3SOUTH FACADE EAST FACADE 51:500 1:500

6 LONG SECTION1:5006

sections

STORAGE

BICYCLE PARKING

-8,2 M

+0 M

FOOD COURT

+29,8 M

OFFICE FLOORS

TERMINAL PASSAGE+14,1 M

SKY GARDEN+95,7 M

+107 M

mangler

7SHORT SECTION1:5007

sections

STORAGE -8,2 M

BICYCLE RAMP +0 M

FOOD COURT+5,8 M

OFFICE FLOORS

+14,1 M

SKY GARDEN+95,7 M

+107 M

8veiw from the floating plaza in front of the buildingview - floating plaza

9veiw from level p2 - the heart of the food courtview - central atrium

area concept

10

Even after adding so many public, recreational and com-mercial functions the rentable office areas are greatly expanded even without adding floors. By expanding each office floor in two directions and improving floor plan efficiency, the office areas improve in flexibility, quality and size in a series of simple steps, shown on the following page. The layouts of the most significant floors are shown on the following pages including the public levels of P-1, P1, P2 and P3, with accompany-ing explanations about the flow and activities of these floors as well as 3 sample office layouts designed for clients with different workspace requirements.

A refurbishment and renovation of BG14 should include actions to make the lower floors more open to the pub-lic, especially to the constant flow of people to and from the Terminal. In this project the main public functions include 3 floors of indoor Food Court - of which one acts as a canteen area for the office workers as well as expanded ground floor food market (and an outdoor plaza, not counted in the following). Also, the roof of the building houses 2 stories of publicly accessible restau-rant and bar, that can be reached through special guest access cards outside office hours. Also, below terrain, there are 2 levels of basement and open bicycle parking.

expansion reprogramming

floors of sky gardenfloors of officefloors of food courtfloors below terrain

floors in total

22132

28

40 40 m253070 m26600 m26290 m2

70000 m2

SIMPLIFIED SKETCH OF THE PROPOSED AREA ALLOCATION

area concept

11

plans are removed simplifying both the building expres-sion and the overall plan shape, as well as drastical-ly increasing the floor area and the lay-out flexibility.

The new floor plan layout utilizes and enhances the qualities of the existing load-bearing structure enabling a free faade, which makes the expansion become a natural extension of the existing floor area. As shown on the illustrations to the right, the floor area for a given office level is increased from roughly 1735 m2 to 2525 m2. This increases the floor size for each of the 20 office floors by 800 m2 an impressive +45% rentable floor area.

ties a total of approximately 1150 m2 workspace area. The new expansion works around the western core to create great workspaces facing west connecting to the south and north-section that continue down the entire length of the building. A large square area in the centre of each floor gives unmatched opportunities to create exactly the work-environment required, including: con-necting visually and physically to areas below or above, housing meeting facilities of any size, places for tempo-rary workstations, creating areas of informal meetings and recreation etc. Increased floor area, combined with facades attached on the outside of the decks and much less space wasted brings the total effective workspace area per level up to 2130 m2 85% more than the existing.

By dedicating the first three floors of the building to other commercial activities, the office plans need a rather drastic expansion in order to substantially in-crease the total rentable office area. This provides a challenge though, since building up is not an option, and adding too much depth to the building might give daylight condition issues. Instead of just focusing on a single direction to expand, a holistic approach is re-quired: The building is expanded over the passageway to the west, adding 8,8 meters of length, as well as 4 meters over the plaza to the north. Furthermore, a number of cuts, voids and odd corners of the existing

As mentioned in the above, this concept breaks with the numerous obstacles that are part of the existing plan. At the moment, the entire central part of each floor is rendered useless through unnecessary limits set by cut-outs in the plan. The central glass furrows do not provide the level below with daylight as intended, as they are manually shaded to avoid glare and overheat-ing. The cut-outs in the floors are wasted space on the level of the cut-out and impossible to use for work-spaces on the area below. Combined with the small en-trance-area in front of the lifts the current plan solution is split into 4 short sections for work spaces along the northern and southern facades, and two small discon-nected central spaces often used for meeting facili-

office floor expansion - brutto area

effective work space - netto areaexisting:1150 m2

expanded:2130 m2

= 2525 m2 1735 m2

+8,8

m

+4,0 m

BRUTTO AREA OF CURRENT VS. FUTURE BG14

NETTO WORK SPACE AREA OF CURRENT VS. FUTURE BG14

plans - office

12

All office floors of the new BG14 are identical, making it easier for the owners to furnish, renovate and rent out. It also makes the floors easier to adapt to the needs of individual clients that can adapt the spaces to fit their specific needs. The large connected floors areas with central cores for vertical flow and technical installation frees up floor space. Structural cores and columns create a free faade and make partition walls movable on a day-to-day basis. Finally the floor to ceiling glass with an integrated shading solution makes altering the workspace layout overnight an actual possibility something that is essential in the rapidly changing office-environment and work-flow of today. In order to show the flexibility of this new floor plan, a sample office floor has been refurbished for 3 very different fictional clients.

A large-sized architectural office needs a top-profile lease for 100 employees with a possibility to fit in an extra 25 people over a short period. Full flexibility is a high priority, so a modern example of the open-plan office with unobstructed workflow and visual connections between the different departments and workgroups are essential. Workspaces are arranged along the facades into five larger sec-tions, which are again divided into workgroups of 4-6 people. The large green zones spanning across the centre of the floor are vital to the office as project areas of high creativity and teamwork. Smaller green zones are areas of social interaction, including recreational areas for breaks, coffee areas and lounges as well as spaces for informal meetings and knowledge sharing. These more open and freely accessible meeting spaces are important supplements to the traditional transparent, but closed, meeting facilities. The flexibility of the large central space is in this layout shown through a mini-auditorium for department meetings, internal lectures, debates etc.

20 office floors

office layout aarchitects

a - 1:500

100 OPEN-OFFICE WORKSPACES

10 SMALL MEETING ROOMS10 LARGE MEETING ROOMS

1 AUDITORIUM

SMALL-SCALE POSTER/MODEL EXHIBITION AREAS

LARGE-SIZED OPEN PROJECT AREAS

social/recreational zones

sketch showing how clients can create connections between floors

plans - office

13

A local newspaper wants a central location from where they can get anywhere in no time, and a highly flexible workspace with a dynamic atmosphere. In addition to 90 desks for full-time journalists and ad-ministrative staff, this floor holds 55 centrally placed temporary work-spaces for projectbased contracts, free-lancers etc. These reflect a workflow that is becoming increasingly common as workstations are now mobile and everything is accessible from anywhere. The plan also has 9 executive offices, for a total of over 150 employees. In addition to a dozen small meeting rooms for contemplation or tel-ephone/Skype calls, there are 3 larger meeting rooms as well as a project room, for more private or intensive meetings. Also small pock-ets of recreational spaces are scattered throughout the floor edge, while a large coffee and newspaper lounge is integrated into the eastern structural core becoming the natural heart of the company.

A high-end law firm wishes an address in the developing part of Oslo with an ocean view to impress their clients and strengthen their reputation. Most employees have their own closed-off office for rea-sons of archiving, discretion and client privacy. These offices are completely transparent though, closable with discrete curtains, taking light through to the centre of the building and allowing views through. The interiors are kept spacious and extravagant with an open cen-tral area with unobstructed views to both south and north facades. In addition to 32 private offices, of which most have their own client meeting facilities, the floor holds 2 team-based offices with a total of 12 desks. Adding 26 open workspaces, making good use of the many small meeting rooms for phone calls or meetings, this amounts to 60 employees. The floor has a large lobby near the lifts, a li-brary/ lounge at the eastern structural core as well as a large social space facing the waterfront. Smaller green areas are semi-enclosed zones, casual meeting spaces and areas for briefing colleagues.

office layout b

office layout claw firm

newspaper

c - 1:500

b - 1:500

32 PRIVATE OFFICES2(x6) TEAM-BASED OFFICES

27 OPEN WORKSPACES

17 SMALL MEETING ROOMS1 LARGE MEETING ROOMS

+ NUMEROUS SMALL WORK AREAS + LARGE RECREATIONAL AREAS

90 OPEN-OFFICE WORKSPACES55 TEMPORARY/

TEAM-BASED WORKSPACES9 EXECUTIVE OFFICES

12 SMALL MEETING ROOMS3 LARGE MEETING ROOMS

1 PROJECT ROOM

+ SMALL-SCALE CASUAL MEETING ZONES+ LARGE-SIZED OPEN TEAMWORK AREAS

plans - food court

14

The basement area previously located in P-1 is moved to P-2 in-stead, in order to move the bicycle parking closer to the surface. A double-spiral bicycle ramp connects this floor with the floating plaza above. Through these ramps, cyclists can move unhindered straight from the Terminal level to the parking area, from where they access the western central core to move up into the building. The actual parking layout is an untraditional circular parking concept allowing for a more comfortable parking experience. The circular shapes mimic the holes cut in the deck above, becoming part of their sculptural nature and helps makes this level an extension of the ones above. In all aspects this level aspires to be more than a traditional base-ment parking area and instead being part of the urban floors above.

The entire floors of P1 and P2 are transformed into a publicly acces-sible Food Court with small stalls of food vendors unique to the BG14 with seating areas of varying sizes and styles spread over both floors. P1 is also expanded onto the current open plaza, which is turned into an area for temporary food stalls, like a, enclosed town square. The roof of this expansion is turned into a floating town square with trees and staircases coming through from the ground floor below acting as sculptural elements on both levels. The expansion towards north funnels people flow into the building through two central en-trances on the ground floor, and also connects straight up onto the plaza above. A hanging walkway acts as a shortcut from the termi-nal entrance above straight to the reception area in the northeastern corner of the building, right in front of the lifts to the office levels.

public p-1

public p1

p1 1:500

p-1 1:500

storage space

receptionarea

infodesk

city

flow

city flow

connection to floating plaza

biskop gunnerus gate

bicyclespiral

public entrance

businessentrance

bicycleparking

bicycleparking

plans - food court

15

With its now central position in the public flow, this level connects all of the horizontal and vertical flows as a dynamic and lively con-trol room. The plaza in the north connects to the walkways from the other side of the street, and through the spiral ramps all the way to the basement. The central void connects the vertical flow with the level below, as well as making a visual connection the level P3 above it. Towards east the faade is opened complete-ly allowing the flow to enter through a 5-story park-like experi-ence, acting as the joint between Byporten Mall, Oslo terminal, the city flow and the Terminal. The flow enters unhindered into the building around the western core covered in green wall elements, like an overgrown box, marking the entrance to the food court.

Just above the Food Court level P3 is turned into a dining area shared by all office floors. The central void visually connects this level with the two lower floors tapping on the synergy of people flow in peak hours. This helps give guests a feeling of the office floors stacked above, and invites the workers to enjoy the dynamic life be-low and even to join them for an exotic specialty should they be thus inclined. In addition to catering to the standards needs for meals at breakfast and lunch, the kitchen also accommodates evening meals for overtime workers, as well as dinner-to-go ready to take home to the family. Furthermore, this floor also holds facilities for catered meetings of all types and sizes during office hours and can even make food deliveries to the individual floors above. Larger rooms are reserved for small conferences even open for external bookings.

public p2

public p3

p3 1:500

p2 1:500

kitchen

businessarival

void

void

view

down

to pa

ssag

eco

nnec

tion t

o ter

mina

lview down to floating plaza

connection to floating plaza

connection to footbridges bicycle

spiral

bicyclespiral

environmental strategy In line with the overall theme the environmental concept is based on simplicity, efficiency and elegance in order to achieve BREEAM excellent/outstanding. Through inte-gration of environmental strategies the concept introduces a series of actions ensuring an impressive performance. These normally separated initiatives are seamlessly joined together creating a small environmental ecosys-tem. This energy cycle is divided into 7 separate head-lines to ease understanding, but actually affect each other in various ways, creating powerful green synergies.

The new facade elements reduce heat loss through building envelope by using a 3-layer energy window, with an integrated double-facade that serves as an ex-tra thermal buffer. This airtight space also holds a series of unique lamellas that act as integrated solar shading devices. As deep horizontal lamellas these reflect the high summer sun to avoid overheating, while still allow-ing the low winter sun to heat the offices in the heating season. This solution also ensures unobstructed views from the offices and allows daylight to enter the building.

Employing the newest in solar energy production, each facade element has an integrated super-efficient pho-tovoltaic panel, that produces onsite electricity. Using a unique variant of concentrated PV sunlight is focused on a small area through water filled spheres of glass. A small multijunction CPV cell on the back of the sphere exploits the intensified sunlight with a concentration of 10.000 suns to reach an efficiency of 41%. Indirect light can also be converted into energy this way on cloudy days, elements facing north or even with moonlight.

The building is stripped down to its loadbearing structures: central cores, columns and floor slabs. All the structural elements remain intact to carry the new, site-specific and sustainable facade. The waste materials from the old facades are used in the creation of the new elements of the building. The old parapet is crushed and used in the lightweight concrete of the floor slab expansions, while the old glass panes are flipped, stacked and used as semi-transparent glass floors in the floating plaza, merg-ing the old with the new in practical and creative ways.

c2c heat power

green approach

16

[ 1 ] lowering energy consumption[2] employing passive strategies[3] producing onsite resources[4] reusing materials and waste

ENVIRONMENTAL PRINCIPLES DIAGRAM 1-3

environmental strategy Green areas in the both the food court levels and the Sky Garden help clean the air of pollution and CO2 - in addi-tion to improving biodiversity. These green elements are watered by collected rainwater and fednitrates and ni-trites - waste products from the water based air cleansing process - creating a small ecosystem. Biological waste products from the many kitchens in the food court areas are grinded into a bio-paste. This gas containing paste is then exported to local biogas plants where it can be degassed to create bio-fuel, turning waste into energy.

Water is collected on the roof of the building and trans-ported to the basement where it serves as a thermal stabilizer. On its way through the building the water is used in the water-filtering process to clean the intake air. From the basement, the water can be used for dif-ferent purposes in the building including grey water for toilet flushing on office and food court levels. Alternately the water can be used for roof sprinkling to lower cooling demands in summer months, and for watering green el-ements on the lower levels, as well as the Sky Garden.

biowaterThe building is ventilated through hybrid ventilation. Short pipe lengths combined with an effective heat re-covery unit ensures 85%+ efficiency in heating season. In addition to this preheating, fresh air is channelled through a biological air cleaning system, based on a running water filter solution. This reduces the dust con-tained in the air by 90%, removes pollution and ne-gates bad smells. Furthermore, this helps to increase air humidity preventing dry-air issues and cooling the air through evaporation, greatly improving indoor climate.

In order to avoid the risk of overheating in summer peri-ods - for a highly insulated office building with large areas off glass - this concept has an integrated passive night-cooling strategy. In order to avoid highly energy-con-suming cooling solutions, the building facade has built-in air vents for natural ventilation that can be controlled centrally. In summer nights these vents are opened to allow the chill night air to cool down the surfaces of the building, in particular the heavy central cores with a high thermal mass that helps stabilize the temperature levels.

coolvent

17ENVIRONMENTAL PRINCIPLES DIAGRAM 4-7

The entire existing facade is removed and replaced by a new, more energy efficient facade solution. For the of-fice areas this takes shape as an innovative special-de-signed facade module that integrates natural ventilation, solar shading, energy production, lowered heat loss and high intake of daylight into a single prefabricated element. The elements are prepared for attachment straight onto the floors slabs, and can be attached one by one, story by story. In addition to drastically decreasing errors and construction time, this element type ensures that BG14 can continue to operate during the renovation process.

By introducing an element with a greatly improved thermal resistance, a large amount of CO2 is saved every year. The table to the right shows the total CO2 savings solely from the improved U-value, compared to efficiency the existing elements, over the new facades expected lifetime. In addition to the heat loss reduction through the improved U-value, a series of other factors contribute to furthering the CO2 reduction greatly 1) The integrated double facade acts as a thermal buffer lowering the heat loss further 2) A high efficiency built-in photovoltaic element ensures a constant production of green electricity 3) An integrat-ed passive shading element, makes motorized internal shading systems obsolete and saves on maintenance.

facade - elementcomplexity made simple

long-term investment

18

The unique facade element solves a series of complex tasks, but its true strength is in the stunning simplicity. It consists of 5 different elements - as shown in the exploded sketch on the following page - but should be viewed as a single innovative all-purpose element.

prefab facade

Existing facade calculation base:50% glass + 50% parapet

PARAPET2x 120 mm concrete95 mm insulation

GLASS2 layers:

Total use of CO2 over 50 years:

[no maintenance][no cleaning][no motorized control system]

[production of onsite green electricity throughout the year]

U-value 0,34

U-value 1,7

CO2 COST1 kgCO2/kg1 kgCO2/kg

CO2 COST54 kgCO2/kg

870 kg

CO2 COST1,7 kgCO2/kg1,7 kgCO2/kg

CO2 COST23 kgCO2/kg

54 kgCO2/kg

363 kg

Proposed facade calculation base:80% glass + 20% frame

FRAMEPUR-foam, hardPUR-foam insulation

GLASS1 layer:

2 layers:

Total use of CO2 during 50 years

co2 reduction / m2 facadeexisting proposed

element lifetime savings: 443 kg co2 / m2

+ c02 saved through integrated passive shading

+ c02 saved through integrated cpv-production

U-value 0,34

U-value 1,0

U-value 0.8

facade - element

19

The warm side of the prefabricated facade-element has two layers of energy glass, en-suring a good indoor climate and a high ther-mal resistance. The entire element is sealed tight from the factory saving on maintenance and limiting operational costs/malfunctions.

Built-in horizontal lamellas of hard plastic with a silicone core makes other shading solutions redundant. Intelligent adoption to the climate combined with its semi-transparent nature balances protecting versus glare and over-heating, without affecting daylight and views.

A cast frame of PUR (polyurethane foam) makes op the framework of the element, hold-ing all the other parts in place and is the part that attaches to the deck slabs. This uniform cast structure ensures high stability of the el-ement, as well as eliminates thermal bridges.

energy glass cast frame lamella shades solar energy double facadeA large glass pane makes up the envelope of the element, creating a buffer-space in-side the element, similar to that of a double-facade. This outer glass covers the edges of the PUR frame, creating the impres-sion that the element is in fact frameless.

Each element has an integrated panel of concentrated photovoltaic, generating en-ergy from sunlight with an impressive ef-ficiency and even from indirect light. As the sunlight passes through miniature glass spheres, it is modulated to beautiful effect.

FACA

DE E

LEME

NT E

XPLO

DED

VIEW

SKET

CH

20

In their horizontal position the lamellas provide effective shading against the high summer sun, without hindering views - and allowing the low winter sun warm the office spaces. As the high sun hits the lamellas some of the light is reflected back, while some is reflected to the light ceiling of the offices allowing diffuse light deep into the floors. By attaching the elements to the very front of the floor slabs, floor-to-ceiling glass is possible drastically increasing the amount of daylight in the building, and making the floors appear much more open and spacious.

As the air temperature around the lamellas increase they tilt to an angled position to protect against glare and overheating. When hitting the angled lamel-las most of the suns spectres are reflected away, but some of the sunlight passes through the semi-transparent material enabling a modulated light flow through to the workspaces. In addition to shading the element has an integrated passive natural ventila-tion system that helps reduce energy consumption in the cooling season. All air vents go through the upper part of the element, hidden in the suspended ceiling.

horizontal

tilted

facade - functionality

FACADE PERFORMANCE SKETCH - TILTED LAMELLAFACADE PERFORMANCE SKETCH - HORIZONTAL LAMELLA

facade - functionality

21

The semi-transparent lamellas are filled with a core of silicone that expands when heated. This patent panding solution shifts the balance enough to make the lamellas tilt gradually as the temperature in the double-facade in-creases. Through this the intelligent passive shading sys-tem innately ensures that lamellas are closed when the building is in risk of overheating, while open to warmth in the heating season. Some of the silicone cores are tinted vaguely blue giving the facade a play of ever-changing bluish hues that add to the expression of the building.

The PV cells of today are hopelessly inefficient, very vulnerable to shading and only deliver during periods of sunlight and clear skies. Concentrated PV cells break with this through concentrating the intensity of the sun on small but very powerful PV cells, with efficiencies of 41% and undergoing constant improvement. By using a brand new reinvention of the lens-effect, glass spheres multi-ply the power of the sun up to 10.000 times, while being able to capture light under practically all circumstances - as it works even with indirect light. More than just aes-thetically pleasing, these are the PV cells of tomorrow.

passive shading

concentrated pv

self-adjusting lamella passive principle NEXT GENERATION CSP MODULES - MORE INFORMATION: RAWLEMON.COM

concentrated photovoltaic - principle sketch

22

templates

The ambitious goals of the competition are meet through a holistic approach to environ-mental issues on all levels of the design. By creating synergy between known and exist-ing strategies combined with state of the art technology and materials as well as original designs within the field of passive solutions the proposal is both realistic and innovative.

Replacing a facade is naturally an investment that has a cost both economically and envi-ronmentally. This cost is paid back several times during the facades lifespan though as it both reduces heat loss and saves on cool-ing by preventing overheating. In addition the integrated PV cells and shading systems help improve the investment even further.

Leaving the existing structure intact and re-using elements of the original facade in the new proposal ensures that as little mate-rial as possible is wasted in the process. The materials of the new elements are cho-sen and developed with Cradle-to-Cradle in mind in terms of maintenance, produc-tion processes, transportation and more.

conclusions c-2-c material calc.environmental heat lossIn addition to shading from the sun and pro-ducing electricity, the building enjoys several indirect contributions to a low environmental impact. From effective use of daylight - low-ering both consumptions for artificial lighting and reducing internal heat loss to avoid over-heating - to using rain water collection for both cooling, air conditioning and watering.

The new highly efficient windows and a double facade-like thermal buffer reduce the heat loss of BG14 dramatically. The elimination of the original parapet coupled with the introduction of a single uniform frame material with both thermal and struc-tural qualities, helps lower the amount of thermal bridges to an absolute minimum.

template 4 template 6template 5template 4

23

view from stre tangent footbridge as the sun sets

reshape rebirth retake recompose rejuvinate reacclimatize reintegrate reboot refine reclaim reabsorb revive reincarnate reintegrate reearn regain relocate readress reinforce rebalance reinterpret reforge refurnish rediscover re-energize rename readapt recharge reawakenrestart reinspire relaunch reinvigorate redeem realign reinvent rediscover restart reanalyze reformat reemphasize recycle reflect reset reimplant reappear reembody reexplore rear-range regrow rehabitate rearticulate reinstall rebalance refocus redesign rekindle reattachrecuperate refuel reedit redefine reacceler-ate react refine reidentify rejoice reanimate rethink reassemble rechannel reasure redraw redevelop reload reestablish reaccept rec-ollect reactivate reinterpret reaquire reunite

reshape rebirth retake recompose rejuvinate reacclimatize reintegrate reboot refine reclaim reabsorb revive reincarnate reintegrate reearn regain relocate readress reinforce rebalance reinterpret reforge refurnish rediscover re-energize rename readapt recharge reawakenrestart reinspire relaunch reinvigorate redeem realign reinvent rediscover restart reanalyze reformat reemphasize recycle reflect reset reimplant reappear reembody reexplore rear-range regrow rehabitate rearticulate reinstall rebalance refocus redesign rekindle reattachrecuperate refuel reedit redefine reacceler-ate react refine reidentify rejoice reanimate rethink reassemble rechannel reasure redraw redevelop reload reestablish reaccept rec-ollect reactivate reinterpret reaquire reunite