- Door heat transfer coefficient from U=0.72W/m2k
- Door leaf with felc
- Two acrylic sealing bands
- Door leaf width 75mm
- Automatic door lock fixating three points
Purpose: Especially warm suitable for A+ and A++ category houses.
Purpose: Especially warm suitable for A+ and A++ category houses.
Doors will serve you a long time.
This leads to:
– Decades of improvement in construction;
– Use of high quality materials;
– Manufacturing process quality control.
However, to prolong door lifetime it must be properly installed.
Exterior doors will fully protect your heat. Door heat transfer coefficient (U=0,72─1,25 W/m²K). Also there are no “cold bridges” , because inner and outer parts of the door are separated by wooden profile and polyurethane foam layer.