Passive House
Passive House

Introduction of Passive House

The passive dormitory building built by Honglianzhong Group is the first passive house with light steel structure in China. It is characterized by high indoor thermal comfort and low energy consumption, is a brand-new energy-saving building advocated internationally, and is the most mature member of the passive house ultra-low energy building standard system certified by the German Passive House Institute.

“Passive House” has become an internationally recognized energy-saving building index, with the characteristics of constant temperature, constant humidity, constant static, constant cleanliness, and constant oxygen; following the five principles of passive house design, it has a good external thermal insulation structure and no thermal bridge design. Careful airtight design, high-quality low-radiation doors and windows with heat recovery function fresh air system, effective use of natural ventilation, natural lighting, solar radiation and indoor non-heating sources to achieve a comfortable temperature, humidity and lighting environment , comprehensively improve the indoor environment of the building, comprehensively reduce the energy consumption of heating and air conditioning, comprehensively improve the quality of the building, and promote the upgrading of the energy-saving industry.


Certified Passive House Manufacturer & Supplier

The Passive House standard is the most demanding construction energy efficiency standard globally. Buildings that adhere to this exacting energy performance standard offer higher air quality. Also, it increases longevity, and exceptional comfort while using 80% less energy than a typically designed structure. Our passive house has high-end windows and doors requiring little maintenance.

For more than ten years, Beijinghlz passive house manufacturer has satisfied the strict requirements of Passive Houses. Our Houses have unique designs and focus on temperature zones, locations, square footage, and window sizes. Thus, all of our houses have levels of performance or certification.

How Passive House Works?

Beijinghlz Passive homes catch the sun’s energy in the form of heat, eliminating the need for a heater, fireplace, or other traditional heat. Thus, they have excellent energy efficiency credentials and a high comfort level. With this strategy, energy savings can reach up to 90% compared to traditional structures.

Additionally, passive house structures offer a peaceful and healthy inside atmosphere. As a result, ventilation systems are there in House structures, and pollutants, and odors are kept out of the structure. Also, we control the temperature of these houses according to customers. within is kept at a tolerable level.

We provide lower operating and maintenance expenses for Passive House structures than other wholesalers. Passive house manufacturer provides considerable energy savings and the usage of premium components. Our Passive House Standards are useful in various building types and temperature zones. High-performance windows, extensively insulated doors, and walls considerably. Thus, it reduces exposure to street noise and other external sounds in a passive home.

High-Quality Passive Home Builders For The Best Construction

Beijinghlz Passive Houses are highly versatile for diverse applications in the construction industry, transforming how we design and inhabit buildings. They contribute to building homes, producing buildings that are incredibly energy-efficient and comfortable all year.

Passive House use has increased significantly in the commercial sector. It is useful for businesses, schools, and institutions to prioritize energy efficiency and better indoor air quality. Modernizing insulation and ventilation systems in existing structures. For example, useful in residential and commercial buildings, and is popular in reducing energy use and environmental effects. Additionally, Passive House techniques apply to commercial buildings, public structures, affordable housing, and unique constructions like labs and eco-tourism lodges.

Leading Passive House Manufacturer And Supplier – Beijinghlz

Beijinghlz is a leading passive house supplier with strict passive house regulations. Our enclosure solutions make it simple to achieve PHIUS-certified performance in multifamily developments. A whole-house strategy is useful to sustainably design and construct our houses, following the process from conception to move-in.

Because of our ultra-precise off-site manufacturing, the entire procedure is quick but also stress-free and smooth for the building expert and the homeowner. Our team of hardworking professionals takes great pleasure in working on projects of all sizes and partnering with homeowners and designers to create bright, long-lasting, healthy buildings. As a result, we build better houses and buildings for businesses so that people may live better now and have a sustainable future.

Quality requirements for passive houses

Only buildings that meet the following criteria can be called passive houses:

  1. Heating demand per unit: the annual heating demand per unit living area (use area) shall not exceed 15 kWh, or the peak heating demand per unit area shall not exceed 10 W. In climate zones where active cooling is required, the unit cooling requirements are roughly the same as the heating requirements above, with the exception of a small additional cooling requirement for dehumidification.
  2. Primary energy demand: The total energy demand of all household equipment (heating, hot water and household electricity) shall not exceed 120 kWh per square meter of living area per year.
  3. Air tightness: It must be confirmed by field pressure tests (both positive and negative pressure tests) that the air change per hour of the building is less than 0.6 times at a pressure of 50 pascals (ACH50).
  4. Thermal comfort: Whether in winter or summer, the thermal comfort of all living areas must be satisfied, and the total number of hours above 25 °C in a year shall not exceed 10%.

Product design parameters of passive house:

In order to meet all the above requirements, 5 principles must be fulfilled through careful design: no thermal bridge design, high performance windows, fresh air system with heat recovery, high quality insulation and airtight structure.

  1. The following principles must be followed in the construction of passive houses:

1.1. Thermal insulation

All non-transparent parts of the building envelope must be very well insulated. For most cold temperate climate zones, this means that the heat transfer coefficient (U value) of the outer envelope does not exceed 0.15 W/(m2K), that is, the heat loss caused by the unit temperature difference per square meter of the outer surface does not exceed 0.15 W/(m2K). More than 0.15W.

1.2. Passive house windows

Window frames must be well insulated and fitted with low-e glass and filled with argon or krypton to avoid heat transfer. For most cool temperate climates this means a window with a U-value below 0.80

W/(m2K) with a g value of about 50% (g value = total solar transmittance, which is the total share of solar energy available for indoor use)

1.3. Heat recovery fresh air system

Efficient heat recovery fresh air system is the key to achieve high efficiency and energy saving while ensuring high indoor air quality. In a passive house, at least 75% of the heat in the exhaust air is recovered and transferred to the fresh air via a heat exchanger.

A comfort ventilation system with heat recovery contributes firstly to good air quality and secondly to energy savings. The fresh air system must not have noise pollution, and it should be kept clean and hygienic for a long time. At present, the upper limit of the highest decibel at 25dB(A) can be realized in the passive house.

1.4. Building air tightness

The unavoidable leakage air volume of the building obtained through the pressure test (positive pressure and negative pressure test), at 50 pascals, the total unit hour must be less than 0.6 times the total building volume.

1.5. No thermal bridge

All protrusions and components, corners, joints and penetrations must be designed and constructed with the utmost care, only in this way can thermal bridges be avoided. For some unavoidable thermal bridges, it must also be minimized as much as possible.

2. Other auxiliary design parameters

2.1. Efficient hot water preparation. Since heating consumes very little energy, hot water preparation becomes the main energy-hungry. Up to 60% of the energy demand for hot water production can be met with solar thermal collectors.

2.2. Energy-saving household appliances. Using energy-saving household appliances such as refrigerators, electric stoves, washing machines, etc. To significantly reduce the remaining power consumption.

2.3. User-friendliness of all components. All systems adopted should be simple to use so that the user can be operated correctly and truly realize the purpose of energy saving.

2.4. Quality assurance and certification. Accurate design and careful construction are prerequisites for complying with the Passive House Standard.

The multi-level quality assurance system begins with the use of passive house pre-design tools for scheme design, and the use of passive house design, design software (PHPP) for construction drawing design, including quality supervision by experienced professionals during the construction phase.


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