FRONT DOORS. OBUK FILLING
From the outside, an aluminium door; from the inside, a thermal insulation door; in profile, a revolution.
The complex structure shows how there is no possibility of heat loss in the AL3: this is because we have done everything to prevent unwanted air circulation and thermal bridges. Sophisticated seals, optimised insulation webs, and the highest degree of precision fitting minimise temperature exchange. Our innovative aluminium door thus keeps the cold out in winter and blocks the heat in summer.
Technical data
| Profile installation depth: | 85 mm | Max. leaf frame weight: | 160 kg |
| Filling structure: | up to 105 mm | Door hinge: | Roller hinge in stainless steel (adjustable in three dimensions) |
| Leaf-enclosure: | One- or double-sided possible | Metal fittings: | to customer specifications |
| Max. element size (B x H): | Single-leaf: 1,5 x 2,5 m Double-leaf: 3,0 x 2,5 m | ||
INSULATION CATEGORIES
Element calculation Uw
 | Element calculation – Filling structure 105 mm | |||
| Leaf-concealing on both sides | ||||
 |  | UD 0,869 W/m²K | ||
| Element calculation - Mix | ||||
| Leaf-concealing on both sides, glass side panel | ||||
 |  | UD 1,079 W/m²K | ||
Frame calculation Uf
Element calculation Uw
 | Element calculation – Filling structure 105 mm | |||
| Leaf-concealing on both sides | ||||
| | UD 0,539 W/m²K | ||
| Element calculation - Mix | ||||
| Leaf-concealing on both sides, glass side panel | ||||
| | UD 0,813 W/m²K | ||
Frame calculation Uf
