July 8, 2026

How can you avoid overheating a building?

How can you avoid overheating a building?

You can imagine. A new construction or major renovation often means thorough insulation of the envelope, large windows that let in lots of light, etc... All important things but have you also thought about limiting overheating of your building?

Good insulation is obviously the basis for limiting energy loss. However, this reduction in energy loss also has some consequences in summer: after the building has been warmed up through a combination of the sun and large windows, it is difficult for the heat to leave the building again. With this reason, it is extremely important to protect your building (new construction or renovation) from overheating.

Preventing overheating

To prevent overheating of your building, Ingenium will mainly work to avoid active cooling. These passive alternatives are preferred as they are a lot more energy-friendly and sustainable than active cooling.

Despite the need for summer comfort simulation, there are already some principles that it is best to consider already in the design phase. These principles are based on the principle of Quadras Energetica and are as follows:

  1. First, the demand for cooling must be reduced as much as possible.
  2. Fill the remaining cooling demand in a sustainable way. Make use of passive cooling.
  3. When simultaneous cooling and heat demand is present, enable energy exchange.
  4. Is active cooling unavoidable? Then deploy it as efficiently as possible!

Application of passive measures to prevent overheating

The risk of overheating can be reduced by applying some passive measures. By applying these measures, you can already keep the final cooling demand low:

  • Glass provided with low solar factor
  • Install exterior blinds on the east, south and west sides of the building. Sun shading on the inside has little to no effect. Ideally, you should use mobile outdoor solar shading that is controlled according to solar radiation. Another option are fixed solar shading elements, with precise placement based on simulations.

Sustainably filling the remaining cooling demand

Provide a ventilation strategy that uses colder outside air at night to cool the building mass. This can be done through grilles or automatically opening windows, or through a ventilation system already in place. Release as much of the building mass as possible by avoiding raised floors and suspended ceilings where possible.

Is there simultaneous cooling and heating demand?

If this case occurs, make sure that an energy exchange between the two is possible. For example, the heat extracted from the south side of the building can be raised to a higher temperature via a heat pump and used, for example, to produce domestic hot water.

Supplement active cooling in a sustainable way

If active cooling (and heating) is unavoidable, deploy them efficiently. This can be done in a sustainable way by using a BTES or Cold Heat Storage, for example.

The necessary comfort and daylight simulations can help you balance these measures. Want to know how you too can keep your cool this summer? Then contact our expert Raf De Herdt at raf.deherdt@ingenium.be or call 050 40 45 30.

Downloads

No items found.

Contact our expert

Raf De Herdt

Related news items

EPBD and BACS: the new framework for non-residential buildings
in the spotlight
May 27, 2026

EPBD and BACS: the new framework for non-residential buildings

Modern regulations not only require buildings to have a management system, but also to actively monitor energy usage, detect anomalies, and utilize data to improve performance.
Design today for the warmth of tomorrow‍
in the spotlight
March 12, 2026

Design today for the warmth of tomorrow‍

The energy transition is no longer a distant prospect. Architecten already Architecten within a rapidly changing energy system. District heating networks—collective systems that distribute sustainable heat—are becoming increasingly important in this context. But what does that mean in practical terms at the drawing board?
From vision to completion: keeping control of your construction project
in the spotlight
March 12, 2026

From vision to completion: keeping control of your construction project

Budget overruns, delays, regulations, sustainability—many clients struggle with the same questions during their construction projects. Projects that are clearly supervised from the outset run much more smoothly.