Inc. Fixing Flange
|600 x 600||740 x 740||28||£650.00|
|750 x 750||890 x 890||34||£675.00|
|750 x 900||890 x 1040||38||£675.00|
|900 x 900||1040 x 1040||42||£725.00|
|1000 x 1000||1140 x 1140||47||£950.00|
|1350 x 750||1490 x 890||49||£1020.00|
GUIDE NBS SPECIFICATION
- Material: Cover and frame 2mm aluminium with 25mm thermal break to prevent heat transfer between interior and exterior
- Cover: 25mm (1”) fully insulated kerb and lid, corner welded and reinforced.
- Curb: 300mm (12”) in height with external curb liner, 25mm thermal break and 25mm insulation to 0.78 W/m²K U-value.
Alternative mineral wool 25mm thick insulation (1.14 W/m²K). 70mm Mounting flange for site installation onto roof deck.
- Seal: Unbroken double bubble & blade seal to lid
- Operation: Gas spring assisted manual opening, designed to be opened smoothly and easily with secure stay hold-open arm.
- Hinges: Heavy duty continuous hinge
- Locking: LM10 Internal SureCatch RotoLock concealed in an enclosure with internal Hasp & Staple and external Lockable Thumb Turn Opening, pull cord opening on the inside.
- Finish: Mill finish aluminium, single or two colour powder coating optional.