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- Bel'M, a range that is 100%* accessible
- The thermal efficiency of a front door is defined by its Ud. Bel'M returns to this value to explain how to select the level of thermal insulation according to your home.
- *AEV (a french acronym meaning « Air, Water, Wind »)
- According to the location of your house you won't have the same acoustic insulation needs. Bel'M can guide you to choose the insulating front door that best suits you.