Improving your home on a daily basis is not just about tidying up or cleaning more often. Behind the routine maintenance actions, technical aspects of the housing directly influence comfort, health, and energy expenses. Ventilation, thermal protection, performance diagnostics: these topics concern all occupants, both owners and tenants, and deserve as much attention as the choice of a household product.
Ventilation and indoor air quality: a common blind spot
Opening the windows for a few minutes each day is a well-known reflex. This action does not compensate for a poorly maintained or partially obstructed ventilation system.
The Anses recommends regularly checking the proper functioning of air inlets (often located above windows) and extraction vents in humid rooms. Dirty or blocked grilles reduce air renewal and promote the accumulation of indoor pollutants: volatile organic compounds emitted by furniture, residual humidity, fine particles.
For those looking to delve deeper into housing-related issues, it is possible to consult Delta News’ home page, which regularly addresses these technical questions.
Cleaning your ventilation ducts twice a year is a simple maintenance action that can be done without specific tools and has a measurable effect on air quality. A mechanical ventilation system (VMC) with clean filters also consumes less energy than a device that forces airflow through obstructed ducts.
External solar protection: improving summer comfort without air conditioning
Episodes of extreme heat often lead to the purchase of a portable air conditioner. ADEME recommends a different approach: blocking heat before it enters the rooms is more effective than cooling it down afterward.
Keeping shutters closed during the hottest hours, using external blinds, and adjustable sunshades significantly reduce indoor temperature. The logic is physical: solar radiation that passes through glazing heats interior surfaces, which then re-emit this heat as infrared. A protection placed outside the glazing intercepts this radiation upstream.
Complementary actions during heatwaves
- Close windows and shutters as soon as the outdoor temperature exceeds that of the indoor, usually late in the morning
- Ventilate widely at night or early in the morning when the outdoor air is cooler than the indoor air
- Limit the use of heat-generating appliances (oven, dryer) during hot hours
These combined actions help maintain a significant temperature difference between the inside and outside, without resorting to additional equipment.
Energy diagnostics and regulatory obligations for landlords
As of January 1, 2025, properties rated G on the energy performance certificate (DPE) can no longer be offered for rent in metropolitan France. This regulatory change directly affects owners renting out older properties without having undertaken energy renovation work.
The timeline is gradually tightening. Properties rated F will follow in the coming years. For owner-occupiers, the DPE does not lead to a ban, but it remains a reliable indicator of thermal loss areas: attic insulation, window replacement, heating system performance.
MaPrimeRénov’: a financial lever to consider
The MaPrimeRénov’ scheme finances part of the energy renovation work. The amounts and conditions vary depending on household income, the nature of the work, and the location of the property. Eligibility conditions change every year, making it necessary to check before starting a project.
Having an energy audit conducted before starting work allows for prioritizing interventions based on cost/effectiveness. For example, insulating lost attics often generates greater thermal gains than replacing windows, for a lower budget.
Routine maintenance of surfaces: choosing your battles
The reflex to clean everything on the same day is more discouraging than helpful. Not all surfaces in a home get dirty at the same rate. Focusing frequent maintenance on high-traffic areas (kitchen, entrance, bathroom) and spacing out cleaning in less used rooms reduces the time spent on cleaning without a visible loss of cleanliness.
The products used also deserve examination. Some multi-purpose cleaners contain compounds that degrade indoor air quality, creating a paradox: cleaning to purify while polluting the atmosphere. Environmental labels (such as the European Ecolabel) help filter out the least problematic references.
Two habits that change the workload
- Treat stains and dirt immediately rather than letting them dry and set in, which significantly reduces cleaning time
- Place an effective doormat (coconut fibers or ribbed rubber) at each entrance to limit the influx of dust and outdoor particles into the home
- Dust high furniture and the tops of cabinets once a month, often forgotten areas where dust accumulates and gradually falls onto lower surfaces
Improving a home on a daily basis relies as much on maintaining technical systems (ventilation, insulation, solar protections) as on visible cleaning actions. A home with a properly functioning VMC, whose openings are protected from direct sunlight in summer and whose DPE has been checked, offers a healthier living environment, even for those who do not spend two hours a day tidying up.
