VELUX China Headquarters
- by Aryan ROSTAMZAD
- /
- 2015-07-06 10:17:52
- /
- Internazionale
- /
- 13255 / EN
New Construction
- Building Type : Office building < 28m
- Construction Year : 2012
- Delivery year : 2013
- Address 1 - street : 065001 LANGFANG, Other countries
- Climate zone : [ET] Tundra - Polar tundra, no true summer.
- Net Floor Area : 2 000 m2
- Construction/refurbishment cost : 1 714 285 €
- Number of Work station : 54 Work station
- Cost/m2 : 857.14 €/m2
-
Primary energy need :
170 kWhpe/m2.year
(Calculation method : Other )
VELUX Langfang Office is the headquarters of VELUX China. Located in the Hebei province, around 45 kilometers from Beijing, the building houses management, marketing and the technical department and sales division.
The two-storey building, with slopping walls and in the shape of a pyramid with cut-out top, is the workplace of 54 employees. They enjoy a range of facilities on the company site, which is shared with the nearby VELUX window factory.
The office was completed in June 2013. It has significantly lower energy consumption than standard Chinese office building.
The new Velux office in Langfang has been designed and built to meet several objectives:
· A real estate objective:
- Consolidate the operations on a single site (2 sites before)
- Being a showcase of the Velux products
- Show the commitment of the Danish company to sustainability and low carbon corporate policy.
· An economical objective:
- The operation must be neutral: the construction and operation costs are paid back by the saved rent
- Controlled construction cost in order to replicate the model in the Chinese market.
· An environmental objective:
- Reach a target value of 40 KWh/m²/year (excluding office equipment), and 55 kWh/m²/year (including office equipment) of final energy consumption (2020 Danish thermal regulations)
- Having a great indoor environmental quality: The VELUX Langfang Office aims to show that we can improve working conditions with minimum environmental impact
Stakeholders
Thermal consultancy agency
Terao
http://www.terao.fr, http://www.teraochinagb.cnEnergy modeling, building envelope optimization, design of HVAC systems and associated controls
Designer
Velux
http://www.velux.comDesign of the facades and daylighting optimization
Contracting method
Macro packages
Type of market
Table 'c21_italy.rex_market_type' doesn't exist
Energy consumption
- 170,00 kWhpe/m2.year
- 370,00 kWhpe/m2.year
Envelope performance
- 0,60 W.m-2.K-1
- 0,25
- 0,80 none
More information
The project is followed-up using the IPMVP protocol during two years.
The real life energy consumption is 51 kWh/m²/y for the first year.
Real final energy consumption
55,00 kWhfe/m2.year
51,00 kWhfe/m2.year
0,94 kWhfe/m2.year
2 014
Systems
- Geothermal heat pump
- Low temperature floor heating
- Radiant ceiling
- VAV System
- Solar Thermal
- Water chiller
- Geothermal heat pump
- VAV Syst. (Variable Air Volume system)
- Floor cooling
- Radiant ceiling
- Natural ventilation
- Double flow heat exchanger
- Solar Thermal
- Heat pump (geothermal)
- 6,00 %
Smart Building
Product
VMS

VELUX
+45 45164000
http://www.velux.com/Table 'c21_italy.innov_category' doesn't exist SELECT one.innov_category AS current,two.innov_category AS parentFROM innov_category AS oneINNER JOIN innov_category AS two ON one.parent_id = two.idWHERE one.state=1AND one.id = '10'
Very advanced insulation coefficient skylights Uw = 1.1W/m²K
Velux has carried out the acceptance procedure internally
Life Cycle Analysis
- 3 265 357,00 kWhEP
Water management
- 119,00 m3
Indoor Air quality
Comfort
Reasons for participating in the competition(s)
The project participates in the NZEB and Health and Comfort contests because:
- It yields very high energy efficiency, especially if we consider the double challenge of achieving Denmark 2020 energy performance threshold in China and in a climate zone where both winter (-10°C with siberian Wind) and summer (40°C humid) are hard.
- The building has achieved the expected energy performance in real life after a careful M&V period of two years
- The building achieves a good ratio of renewable energy rate with the contribution of Ground Source Heat Pump and Building Integrated Solar Thermal systems (although it was not designed to reach NZEB at this stage but there is a potential of coupling the project with cogeneration based on the wood waste from the window factory on site)
- The building design was focused around the objective of energy performance. Not only the envelope is very efficient but the HVAC systems are well combined, a proper mix between efficient technologies and innovation. We must mention that combining VAV dedicated outdoor air system, radiant slabs/ceilings based on extreme thermal mass effect and ground source heat pump was a challenge in China and a lot of effort has been put on the integration of systems and on quality insurance. Lastly the BMS has been carefully designed and defined to just meet the need (no extra/unnecessary functions, the priority has been given to the use)
- The building also aims at very good comfort level. The target comfort and indoor air quality level have been defined as per CEN recommendation report 1752:1999 Class B
- Fresh air rate has been increased by 30% compared to the above mentioned Baseline both in order to improve IAQ and to meet comfort zone. Indeed the project is so efficient that only preconditionned fresh air is required to meet comfort. This is also possible thanks to the principle of TABS (Thermally Active Building Slab) that make best use of thermal mass
- Comfort and Health is also ensured by an abundant daylight. One can say that Velux has designed the architecture of the project around daylight, that it is the DNA of the building. As a result indoor spaces are very pleasant. Daylight and views on outdoor space (large green spaces with "happy farm" concept are visible from one side of the building) are known to be important factors for workers well-being.
Building candidate in the category

Net zero energy buildings

Health & Comfort
Author of the page
Aryan ROSTAMZAD
Responsable commercial & marketing
Other case studies

CasaClima Class A - House B in Sacile
- 11/06/2022
- /
- Domenico Pepe
- /
- 1003


DomusLignea
- 05/06/2018
- /
- vincenzo guzzo
- /
- 7406

Residence Visioneire
- 05/06/2018
- /
- vincenzo guzzo
- /
- 8768

REEF SANSONE - Bar Restaurant
- 28/03/2018
- /
- Massimiliano Pardi
- /
- 19863

CASA UD
- 13/03/2018
- /
- Monterisi Tiziana
- /
- 8267