Insulated doors and windows are designed to improve energy efficiency and reduce costs for maintaining the optimal temperature inside buildings.
Extrema offers, for the Sirio vertical lift, a new model of panoramic swing insulated door in line with the most stringent regulatory standards on energy efficiency.
Thanks to the technology and materials used, the product guarantees very high thermal and acoustic insulation standards and a durability that is unique on the market.
This door option is especially good for energy efficient homes.