
Hermes hi aluminium windows doors London
Although this system has a retro style, it has great modern thermal performance. This allows for older houses to maintain the retro look but gain the advantages of modern performance. These great thermal parameters are due to the triple chamber profiles with a frame depth of 81 mm, a patented insulation system Spldertechnology® and several insulating elements. This system is great for renovated buildings.
Technical Details
Profile Depth: frame 81mm, leaf 901mm
Glazing: 12-49mm
Air Permeability (EN 12207): Class 2-4
Water Tightness (EN 12208): E750A-E2000A
Wind Resistance (EN 12211): C1-C4
Operation Force (EN 13115, EN12046-1): Class 1
Wrong Use (EN 13115): Class 4
Impact (EN 13049): Class 3-5
Acoustic Performance (EN ISO140-3, EN ISO 717-1): 40 (-2: -6) dB
Burglary Proof (NEN 5096/A1, ENV 1627): Class 2
Thermal Resistance (EN 10077): Uf ≥ 1,36 W/m2K
Window 1230×1480: Uw ≥ 0,94 W/m2K
Door 1100×2350: Ud ≥ 1,11 W/m2K