THE BLOG

What regulations apply to thermal insulation work?

In renovation projects, insulation work is governed by thermal regulations. These regulations set minimum thermal performance standards that must be met during insulation work, depending on the walls and the geographical area. However, certain financial assistance programs for insulation work require thresholds that exceed these regulations. Finally, the regulations also make it mandatory […]

Blown-in attic insulation: the complete guide

Whether in new builds or renovations, insulating unused attic space by blowing in loose-fill insulation is a quick and easy way to achieve effective insulation in both winter and summer. This technique is covered by DTU 45.11 and is effective for homeowners, as well as being cost-effective for professionals. Here is our comprehensive guide to […]

Reminder from the DTU: mandatory protection for recessed spotlights

The AICB(1) and FILMM(2) remind us that protecting recessed spotlights is mandatory when insulating unused attic space, regardless of the type of insulation used. Worrying increase in breaches related to the treatment of recessed lighting Indeed, after noting a significant drop in sales of protective covers [...]

What is the link between CO2 and global warming?

We hear more and more about the need to reduce CO2 emissions. But what exactly is the impact of CO2 on climate change? Why is it necessary to reduce our carbon dioxide emissions? What is the link between global warming, the greenhouse effect, and CO2? The […]

RE2020: the ICconstruction index

Environmental performance is one of the major developments in RE2020, which introduces new indicators. To reduce carbon emissions in the building sector, RE2020 measures the impact of buildings on climate change using a new index: Icconstruction. Launched with the RE2020 environmental regulation, the Icconstruction index sees […]

Bio-based, eco-based, geo-based, biodegradable: what's the difference?

When talking about eco-friendly materials or eco-materials, we often hear the terms "bio-based," "eco-based," "geo-based," and "biodegradable." But what is the difference between these terms? Here is a quick and clear summary to help you differentiate between these terms and avoid confusion! Bio-based, eco-based, geo-based, biodegradable: what's the difference? 1. Material […]

What is the best bio-based insulation material?

Bio-based insulation materials are gaining popularity due to their renewable nature and low environmental impact. Several materials are available, each with its own specific characteristics and applications. Here is an overview of the best bio-based insulation materials, their respective strengths and weaknesses. Hemp wool Hemp wool is one of the bio-based insulation materials […]

Which insulation should you choose for renovating unused attic space?

The choice of thermal insulation for renovating unused attic space depends on several factors, such as budget, desired thermal performance, summer comfort, and other considerations. Here is an overview of the criteria to consider and the different types of insulation commonly used to renovate unused attic space. Choosing insulation for renovating attic space […]

What are the drivers for carbon-free construction?

One of the objectives of RE2020 is to reduce the environmental impact of new buildings, which are responsible for 25% of CO2 emissions in France. Bioclimatic design is at the heart of the challenges facing professionals in the sector. So what are the main levers for carbon-free construction? 1. Energy efficiency of buildings Thermal insulation A […]

cellulose insulation dangerous?

cellulose insulation used for over a century in countries accustomed to extreme temperature variations (Canada, Finland, etc.). However, in France, it is not uncommon to still read that cellulose insulation dangerous, that it settles, attracts rodents, or other misconceptions. In order to make an informed choice [...]

What is the best insulation for unused attic space?

With the amount of materials available, it is not easy to find the best insulation for unused attic space, whether in new builds or renovations. However, unused attic space is often the main source of heat loss in a house. In fact, it is responsible for around 30% of energy loss in a standard home […]

How does RE2020 measure the environmental impact of new buildings?

The building sector is responsible for 25% of greenhouse gas emissions in France. In this context, RE2020 is strengthening its requirements around three major objectives: ensuring summer comfort, optimizing the energy performance of new buildings, and reducing their carbon impact throughout their lifetime (50 […]

RE2020: Measuring the energy performance of new buildings

The building sector accounts for 44% of annual energy consumption in France and 25% of greenhouse gas emissions. In this context, RE2020 sets out a more demanding legal framework for environmental protection. It is based on three new objectives: ensuring summer comfort, reducing […]

RE2020: the ICénergie index

The objective is twofold in terms of energy performance. RE2020 should enable the construction of buildings that consume less energy and also use less carbon-intensive energy sources. Thus, for the first time, the regulations set a maximum threshold for greenhouse gas emissions from energy consumption. The ICénergie indicator was created with the […]

RE2020: the Cep,nr index

One of the objectives of the RE2020 Environmental Regulation is to reduce the energy consumption of new buildings. To achieve this, it reinforces certain concepts that enable this consumption to be measured. Two indices have had their requirements strengthened and a new index has been introduced: the Cep,nr index. So what does it consist of? What are its levers of influence […]

RE2020: the Cep index

One of the objectives of the RE2020 Environmental Regulation is to reduce the energy consumption of new buildings. To achieve this, it reinforces certain concepts that enable this to be measured: the Bbio index (bioclimatic need coefficient) is more ambitious and the Cep index (total primary energy consumption coefficient) reinforces its requirements in terms of performance [...]

Carbon storage & bio-based materials

The Low Carbon Prescribers HUB analyzes the bio-based materials sector from the perspective of carbon neutrality. Indeed, in order to achieve the RE2020 carbon storage targets, construction using bio-based materials is becoming inevitable. So, what are the benefits of bio-based materials in terms of carbon-free construction? Context […]

RE2020: the Bbio index

Like the 2012 thermal regulations (RT 2012), RE 2020 implements a basic principle of energy efficiency: the cheapest and least polluting energy is the energy we don't consume. With this in mind, the energy requirements indicator (Bbio) is still present, but the regulatory threshold is more ambitious. Definition […]