In this house located in Luxembourg, the owners wanted to undertake a comprehensive energy renovation to significantly improve thermal comfort and reduce their energy consumption.
The building had several structural weaknesses: a poorly insulated roof, exterior walls causing significant heat loss, and an aging facade. The overall energy performance was below current standards in the Grand Duchy.
The project's objective was not limited to aesthetic improvement. It aimed to optimize the thermal envelope of the building in accordance with Luxembourg's energy efficiency requirements while sustainably enhancing the property value.
The construction site was entrusted to Avenir Rénovations, with a dedicated Project Manager ensuring complete coordination of the interventions and strict compliance with current standards.
Avenir Rénovations' expertise in comprehensive energy renovation
Step 1: Insulation of the attic and roof
The first source of thermal loss came from the roof. The poorly insulated attic led to significant heat loss in winter and overheating in summer.
The teams removed the old interior coverings to check the condition of the existing wooden structure. High-performance thermal insulation was then installed between the rafters, complemented by the installation of a vapor barrier in accordance with current technical requirements. A new drywall finish completed the whole.
Particular attention was paid to the treatment of junctions and air tightness. In an energy renovation, this precision is essential: even the slightest break can compromise the overall performance of the system.
As a result of this intervention, the attic now benefits from optimal thermal stability and can be used under better comfort conditions.
Step 2: External thermal insulation of the facades
The second phase of the project involved insulating the exterior walls. A complete scaffolding was installed to secure the intervention and allow for precise work on all facades.
External thermal insulation was implemented according to Luxembourg standards. High-density insulating panels were installed with reinforced mechanical fastening, ensuring stability and durability. Thermal bridges were carefully treated, particularly at junctions and window frames, and the plinths were fully insulated to ensure perfect thermal continuity.
This solution eliminates major losses, improves the building's energy class, and sustainably protects the existing masonry. It also optimizes indoor comfort, both in summer and winter.
The increase in thickness associated with the external thermal insulation required precise adjustments to window supports and peripheral finishes to maintain the architectural balance of the house.
Step 3: Facade renovation and contemporary finish
Once the insulation was in place, a finishing render system was applied. The choice fell on a light mineral render, resistant to Luxembourg's climatic variations and offering excellent durability.
This coating ensures good permeability to water vapor while effectively protecting against microcracks. The final appearance, modern and uniform, gives the facades a contemporary and elegant line. The contrast between the lower parts and the light walls visually structures the architecture of the building.
Step 4: Treatment of technical points and waterproofing
As part of a comprehensive energy renovation, technical details are crucial. The teams carried out the refurbishment of window frames, treated the thresholds, and reinforced the peripheral waterproofing of the joinery.
The rainwater downpipes were checked and the connections between the roof and facade were precisely controlled to ensure perfect continuity of the envelope.
Each step was supervised by the Works Manager to ensure compliance, performance, and overall coherence.
An energy-efficient home transformed
Upon completion of the work, the house benefits from:
- Complete insulation of roof and walls
- A significant reduction in energy consumption
- A markedly improved thermal comfort
- Increased value on the Luxembourg real estate market
Energy renovation is not just a technical improvement; it represents a sustainable and strategic asset investment.
Do you have an energy renovation project in Luxembourg?
Avenir Rénovations supports you from the complete energy audit to the overall coordination of the work, with a dedicated Works Manager ensuring performance, compliance, and peace of mind.
Contact Avenir Rénovations Luxembourg for a personalized study.
Investing in energy renovation means sustainably improving your comfort while enhancing your assets.
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