Verified by manufacturer 3 months ago
AT15
Loft hatch, air tight and insulated offering the best performance of any loft hatch on the market. Fabricated from steel with a powder-coated finish this range looks smart and is build to last.
For residential applications. Suitable for ceiling use.
Designed to meet or exceed Part L of the building regulations, the AT loft hatch range is offered with three insulation options, giving U-values of 0.35, 0.25 and 0.15. It excels in both positive and negative air pressures at 50 Pa, exceeding requirements for new properties' airtightness and insulation. The air permeability test follows BS EN 1026:2000 and BS EN 12207:2000 standards, specifically for ceiling use.
The hatch features a spring-loaded twist catch lock that ensures a high compression seal between the door and frame. Additionally, the outer frame is equipped with a seal to prevent air from escaping around the hatch's outer edge.
Insulation:
The AT35 features 65 mm foam insulation bonded to the inside of the lid, while the AT25 and AT15 offer 100 mm insulation.
Lock options:
Choose the standard twist lock with a tri-drive lock body, which comes with an opening key. For added security, an optional key lock is available (key included). Please note that the pole is not compatible with the key lock option.
Easy installation:
Screw fix through the pre-drilled holes in the frame into the surrounding joists.
Features and benefits:
Color | White |
Finish | Powder-coated |
Material | Steel |
Shape | Rectangle |
Length | 640 mm |
Width | 560 mm |
Height | 60 mm Guidance for specification option: AT35. 100 mm Guidance for specification option: AT25/AT15. |
Warranty description | Two year |
Uniclass | |
CAWS | L20/60 Doors L20/630 Hatches |
Position | Ceiling-mounted. |
Size | Structural opening: 560 x 640mm; Clear opening: 520 x 560 mm. |
Frame | Exposed picture frame type.Guidance for specification option: 25 mm on all sides. |
Panel | |
Material | Steel. |
Integral finish | Powder-coated, white (RAL 9010). |
Latch or lock type | Twist lock.Guidance for specification option: With a tri-drive lock body; comes with an opening key. Key lock.Guidance for specification option: Key included. Please note that the pole is not compatible with the key lock option. |
Operation | Swing-down. |
Integral accessories | Weatherstrips to frame. |
U-value | 0.15 W/m²K. |
Insulation | PIR foam (100 mm). |
Air tightness | Airtight at 600 Pa air pressure (positive and negative). |
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Recyclability | 100% Steel |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 40 % Guidance for specification option: Steel. |
Platform | Compatible | Version |
---|---|---|
- | 1 |
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