The world of home encompasses a set of technical decisions ranging from the choice of wall coverings to the management of indoor air quality. Each material installed, each partition moved, each glazing replaced alters the thermal and health behavior of the dwelling. Understanding these interactions helps avoid costly renovations that may need to be redone a few years later.
Self-cleaning materials and photocatalytic glass: anticipating hygiene standards
Photocatalytic surfaces use titanium dioxide (TiO₂) deposited in a nanometric layer on glass. Under ultraviolet rays, this coating triggers an oxidation reaction that decomposes organic residues, greasy dust, and microorganisms fixed on the surface.
Read also : Everything You Need to Know About Essential Equipment for a Perfectly Equipped Kitchen
The concrete result: photocatalytic glass reduces cleaning frequency and limits bacterial proliferation on glass walls exposed to light. For a kitchen or a conservatory, where condensation promotes deposits, this type of glazing represents a measurable maintenance gain.
This process is part of a logic of enhanced hygiene that emerged after the health crisis. Classic design guides do not yet address this category of materials, while field feedback shows a growing adoption of recycled copper antimicrobial coatings in family kitchens, with a notable reduction in bacterial contamination after six months of intensive use, according to a case study published by the National Institute of Consumption (INC) in April 2026.
You may also like : The Revealed Secrets: Everything You Need to Know About the Rules of Cluedo
To learn more about Maison Info, topics related to sustainable materials and home maintenance are detailed by category.
Bio-sourced materials for interior renovation: cork, hemp, and algae composites
Since early 2026, the annual report from ADEME on sustainable materials confirms a significant increase in the use of cork and hemp in interior renovations. These bio-sourced materials provide natural thermal insulation while having a significantly lower carbon footprint than synthetic insulators.
Hemp, used in panels or sprayed hemp concrete, regulates the ambient humidity of a room. Cork, on the other hand, combines sound and thermal insulation in a reduced thickness, making it suitable for apartments where every centimeter counts.
Algae-based composites versus exotic woods
The comparative analysis from CSTB (Scientific and Technical Center for Building), dated February 28, 2026, establishes that algae-based composites outperform exotic woods in moisture resistance while costing about 30% less in maintenance over the long term. For a bathroom or kitchen countertop, this type of material offers a credible alternative to teak or ipe, without the supply constraints associated with tropical species.
- Cork in rolls or tiles adapts to both walls and floors and absorbs sound vibrations between floors.
- Hemp in interior plaster naturally regulates humidity levels and limits mold in wet rooms.
- Algae composite panels resist water splashes without additional chemical treatment.
RE2020 regulation extended to renovations: what it changes for decorative choices
Since January 2026, the RE2020 obligation also applies to partial renovations. The Official Journal of the French Republic No. 0025 of January 10, 2026, specifies that minimum CO₂ emission thresholds now apply to all new decorative materials installed during a renovation.
In practice, this means that a simple change of flooring or wall paint may be subject to environmental requirements if the project exceeds a certain scope. Paints with high levels of volatile organic compounds (VOCs) become more difficult to justify in a compliance file.
Consequences on the choice of paints and coatings
Mineral paints (lime, silicate) and clay-based coatings naturally fall within the RE2020 thresholds. Their composition does not generate residual VOCs after drying, unlike conventional acrylic paints, some formulations of which approach regulatory limits.
For a kitchen or bedroom renovation project, checking the FDES (Environmental and Health Declaration Sheet) of the product before purchase avoids unpleasant surprises during a compliance check.
Interior layout and air quality: ventilation, storage, and circulation
The layout of a living space is not limited to the arrangement of furniture. Indoor air quality directly depends on how the rooms are organized.
A closed storage reduces dust accumulation on exposed surfaces. Open shelves, which are very present in current decor trends, multiply the deposition surfaces and complicate maintenance, especially in humid rooms like the kitchen or bathroom.
Ventilation and window choices
A well-sized window serves not only for brightness. It conditions air renewal and humidity regulation. When replacing glazing, opting for a model compatible with a simple or double flow mechanical ventilation system ensures an air flow that meets health requirements.
- Check that the air inlets of the windows are not obstructed by curtains or tall furniture placed against the wall.
- Prefer closed storage furniture in bedrooms to limit exposure to dust mites.
- Ensure a circulation space of at least 80 cm around extraction vents to maintain their efficiency.
The choice of an open or closed staircase also modifies air circulation between levels. An open staircase promotes natural convection but can spread kitchen odors upstairs if the extraction hood is not powerful enough.
The world of home is evolving under the combined effect of environmental standards and new generation materials. Photocatalytic glass, bio-sourced composites, and the extension of RE2020 to partial renovations are reshaping the selection criteria for each room. A decorative material is now judged as much on its FDES sheet as on its aesthetic rendering.