TopAccess Roof Access Hatch – Top-level insulation for optimal energy performance
Key benefits
• High-quality insulation: U-value 0.21 W/m²K for strong energy performance
• Thermally broken design: eliminates thermal bridges and minimises heat loss
• Durable roof access: KOMO and TÜV certified
• Premium materials: stainless-steel construction for a long service life
Technical specifications
• Clear opening (L x W): 900 × 700 mm
• Weight: ± 120 kg
• Upstand height (H): 330 mm (available integration height: 250 mm)
• Required roof opening: matches the clear opening dimensions
• Material: stainless steel (AISI 304, polished)
• Insulation: glass fleece-coated, Rc = 7.22 m²·K/W
• Surface treatment: powder-coated, standard colour RAL 9010
• Mounting flange: 25 mm, integrated at the base of the upstand
Operation
• Gas struts for opening and closing; automatic locking in the open position
• Two-point locking with Euro profile cylinder (2 keys)
Performance
• Thermal insulation: U = 0.21 W/m²K (EN ISO 10077-2)
• Sound insulation: 23 dB (EN ISO 717-1)
• Wind resistance: 2400 Pa (EN 12211)
• Water resistance: 750 Pa (EN 12155)
• Snow load: 950 N/m² (EN 1991-1-3)
• Impact resistance: 0.35 kNm (EN 1991-1-1)
• Air permeability: up to 650 Pa; at 10 Pa: 0.37 m³/h (EN 1026)
Installation
• Install at a roof angle between 3° and 25°
• Suitable for all types of roof coverings
Certification
• KOMO, TÜV
Options
• Additional interior/exterior colours available on request