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Back to Knowledge Hub09.06.2026
Not every ventilation system is suitable for every building.
Requirements vary depending on:
A single-family home has different requirements than a multi-family residential building, a school, or an office building.
Due to the high air tightness of modern buildings, natural air circulation is often no longer sufficient.
Possible consequences:
For many new construction projects and energy-efficient renovations, it must be determined whether a ventilation concept is required.
The goal is a minimum air exchange rate independent of user behavior for moisture protection.
Ventilation systems with heat recovery (HRV) use the heat from exhaust air to preheat outside air.
Benefits:
The following factors are particularly important when selecting the right ventilation system:
Only on this basis can it be determined whether a centralized or decentralized solution is the better choice.
The choice between centralized and decentralized ventilation depends primarily on the building structure, intended use, and available installation space.
Typical applications:
Benefits:
Typical applications:
Benefits:
Decentralized ventilation systems offer advantages when flexibility, minimal impact on the building structure, or easy retrofitting are priorities.
Centralized systems are particularly advantageous in new construction projects, where airflow routing, technical spaces, and maintenance requirements can be integrated into the planning process at an early stage.
Many projects today also use hybrid concepts that combine centralized and decentralized components. As a result, the deciding factor is often not the system type itself, but rather which concept best meets the requirements of the specific building.
In single-family homes, living comfort, energy efficiency, and the unobtrusive integration of building services technology are the primary priorities.
Key planning objectives:
Controlled residential ventilation is becoming increasingly important, particularly in modern airtight buildings.
One of the biggest challenges is often integrating the ventilation technology into the building design at an early stage.
Typical planning questions:
If ventilation is only considered at a later stage, compromises are often required regarding duct routing, noise levels, or installation effort.
The most suitable solution depends primarily on the building geometry, available space, and comfort expectations.
Decentralized ventilation systems are particularly suitable for:
Centralized ventilation systems offer advantages for:
Regardless of the system selected, sound insulation, maintenance accessibility, and the positioning of outside air and discharge air openings should be considered during the early planning stages. This helps avoid later modifications and ensures efficient long-term operation of the ventilation system.
In multi-family residential construction, ventilation planning must address significantly more requirements than in single-family homes. In addition to indoor air quality and energy efficiency, sound insulation, fire protection, maintenance concepts, and the management of multiple occupancy units also play an important role.
Key planning objectives:
Particularly in larger residential buildings, technical and organizational requirements must be coordinated at an early stage.
The greatest challenges usually arise at the interfaces between architecture, building services engineering, and operation.
Typical planning questions:
The later ventilation planning begins, the more difficult duct routing, shaft planning, and technical coordination become.
Both centralized and decentralized solutions can be used in multi-family residential construction.
Decentralized ventilation systems are particularly suitable for:
Centralized ventilation systems offer advantages for:
In practice, hybrid concepts are also frequently implemented. These combine centralized and decentralized components to optimally meet sound insulation, maintenance, and building structure requirements.
The key consideration is not which system is fundamentally better, but which solution best suits the specific building and occupancy concept.
In schools and daycare centers, maintaining consistently high indoor air quality is the primary objective. At the same time, systems must operate reliably, quietly, and with minimal maintenance requirements.
Key planning objectives:
Because these spaces are often occupied for many hours each day, ventilation planning directly affects comfort and usability.
Educational facilities place unique demands on both technology and operation.
Typical planning questions:
In renovation projects, limited technical space and existing building structures must also be taken into account.
System selection depends primarily on building size, condition, and intended use.
Decentralized ventilation systems are particularly suitable for:
When combined with COâ‚‚- or humidity sensors, airflow rates can be controlled according to demand.
Centralized ventilation systems offer advantages for:
The ideal solution ensures consistently good indoor air quality while keeping operating effort to a minimum. Particularly in existing buildings, decentralized systems often offer advantages because they can be retrofitted with comparatively little construction effort.
Hotels place high demands on comfort, acoustics, and operational reliability. Guests expect pleasant indoor air quality without consciously noticing the ventilation system.
Key planning objectives:
At the same time, operators must consider profitability, occupancy rates, and service processes.
The ventilation system must reliably accommodate varying occupancy levels and usage times without compromising guest comfort.
Typical planning questions:
Especially in existing buildings, planners are often challenged with integrating modern ventilation technology into existing building structures.
The appropriate solution depends on building size, hotel concept, and technical infrastructure.
Decentralized ventilation systems are particularly suitable for:
Advantages include flexible room-by-room control and relatively simple integration into existing buildings.
Centralized ventilation systems offer advantages for:
They allow centralized control and can often be integrated into higher-level heating, air conditioning, and energy management systems.
The ideal solution combines high guest comfort with cost-effective operation. Particularly important are low noise levels, reliable air supply, and a maintenance-friendly overall concept.
Commercial and office buildings often need to accommodate changing uses. Room layouts change, spaces are expanded or repurposed, and indoor air quality requirements continue to increase.
Key planning objectives:
Particularly in modern work environments, indoor air quality is becoming increasingly important as a comfort and productivity factor.
The greatest challenge is often creating a solution that remains flexible over the long term.
Typical planning questions:
The more dynamic the use of the building, the more important demand-based airflow control becomes.
The choice of system depends heavily on the building structure, occupancy concept, and construction phase.
Decentralized ventilation systems are particularly suitable for:
Room-by-room control allows airflow rates to be adjusted according to demand, and modifications can often be carried out without major intervention in the building services systems.
Centralized ventilation systems offer advantages for:
They allow centralized control and can often be combined with other building services systems.
The ideal solution meets current requirements while also accommodating future changes in building use. Flexible and modular ventilation concepts offer significant long-term advantages, particularly in buildings with frequent renovations or tenant turnover.
The optimal solution depends on the intended use, building structure, and technical requirements. While decentralized systems are often used in single-family homes, both centralized and decentralized concepts may be suitable for multi-family residential buildings, hotels, and office buildings. Key factors include available space, sound insulation, maintenance, and energy efficiency.
Decentralized ventilation systems are particularly suitable for renovations, retrofits, and buildings with limited space for air ducts. They enable room-by-room ventilation and can often be integrated with less structural effort than centralized systems.
Ventilation systems with heat recovery (HRV) use the heat from exhaust air to preheat incoming outside air. This reduces ventilation heat losses and improves the building’s energy efficiency.
Modern buildings have a high level of air tightness. Without planned air exchange, humidity, COâ‚‚, and other airborne pollutants cannot be removed sufficiently. Professional ventilation planning helps maintain indoor air quality and prevent moisture damage.
In schools, hotels, office buildings, and commercial buildings, priorities often include sound insulation, maintenance friendliness, energy efficiency, and flexible usage concepts in addition to indoor air quality. Ventilation planning should therefore always be tailored to the intended use and operational requirements of the building.
Contact
We provide architects and technical planners tailored solutions to address every ventilation challenge with precision. Whether it is sound insulation, energy efficiency, or optimising facade aesthetics, our expert technical teams are equipped to provide you with the ideal solutions.
With Ventomaxx, you gain access to comprehensive hybrid ventilation concepts that seamlessly combine passive and active systems from a single, trusted source. Our mission is to improve indoor air quality in the most efficient way.
We provide architects and technical planners tailored solutions to address every ventilation challenge with precision. Whether it is sound insulation,
energy efficiency, or optimising facade aesthetics, our expert technical teams are equipped to provide you with the ideal solutions.
With Ventomaxx, you gain access to comprehensive hybrid ventilation concepts that seamlessly combine passive and active systems from a single, trusted source. Our mission is to improve indoor air quality in the most efficient way.
