Custom Wooden Windows and Energy Efficiency in Parisian Renovations
Paris Fenêtres Technical Resource
Custom Wooden Windows and Energy Efficiency in Parisian Renovations
Under recent French climate legislation, rental properties with poor energy ratings (DPE classification F and G) face strict leasing bans. Upgrading windows is the highest-yield intervention in stone buildings.
Thermal Insulation Coefficients (Uw)
- Old Single Glazing: Uw values exceeding 4.8 W/m²K.
- Modern Timber Double Glazing: Uw values below 1.3 W/m²K with argon gas fills and low-emissivity coatings.
Investing in tailored French oak or forestry-certified timber windows simultaneously enhances property value, curbs winter heating loss, and complies with stringent Parisian condominium regulations.