Building sector key to emissions reduction

Reducing greenhouse gas emissions requires significant changes in the building sector. Insulation is a crucial part of this, as it reduces heating needs in winter and can improve comfort during heatwaves.

Insulation depends on multiple factors

A home's energy efficiency is not solely determined by insulation. Factors such as installation quality, thermal bridges, air tightness, ventilation, and the building’s structure all play a role in its overall performance.

Material choices matter for sustainability

The environmental impact of insulation materials must be considered throughout their lifecycle, from production and transportation to their end-of-life. Bio-based insulators, such as wood fiber, hemp, and cellulose wool, offer alternatives to conventional products.

Wood fiber insulation and its benefits

Wood fiber insulation, made from wood fibers and by-products, comes in various forms such as flexible panels, rigid panels, or loose-fill insulation. It helps reduce heat exchange, maintains indoor temperatures, and can also absorb noise and humidity, depending on the product and installation.

Evaluating performance with technical data

To compare insulation products, individuals and professionals can consult technical sheets that provide details like thermal resistance (R) and thermal conductivity (lambda or λ). Higher R values and lower lambda values indicate better insulation performance at the same thickness.

Bio-based materials require careful analysis

While bio-based materials are renewable, their environmental impact depends on factors such as the origin of raw materials, manufacturing processes, transportation, binders used, and end-of-life disposal. Environmental and sanitary declaration sheets (FDES) help assess these impacts.

Choosing the right insulation for the building

The choice of insulation must consider the specific needs of the building, including its age, structure, and humidity conditions. Older buildings, in particular, require careful evaluation of wall composition and water drainage to avoid issues like humidity imbalances.

Installation is crucial for effectiveness

Even the best materials can fail if not installed correctly. Continuous insulation, treatment of thermal bridges, and proper ventilation are essential for achieving optimal performance in reducing a home's environmental footprint.

Balanced approach for sustainable renovation

Sustainable home renovation does not rely on a single "miracle" material. It requires a combination of energy efficiency, durable materials, and proper installation to effectively reduce a home’s environmental impact.