Airtight Loft Hatch | Ultra-Slim, U-Value 0.15 | Jupiter Blue
AT Airtight Loft Hatch
AIRTIGHT | HINGED ACCESS

AT Airtight Loft Hatch

Non Fire Rated · Picture Frame
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Datasheet
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AIRTIGHT | HINGED ACCESS
Installation Guide
PDF instructions

Product details

  • Neatest hatch on the market, protrudes just 2mm from the ceiling
  • Airtight at 600Pa air pressure (Positive and negative)
  • Made from 80% recycled steel (GWP/ODP ratings of zero)
  • U-Value options from 0.35 to 0.15 (XPS and PIR insulation)
  • Easy to fit and easy to open with hinge-down movement
  • Finished in white Powder coat (RAL 9010)
  • Patent granted
  • Meets NHBC guidelines with a clear opening of 520 x 560mm

The AT Series is the first of its kind, an air-tight metal loft hatch engineered to meet the stringent thermal and air permeability demands of Building Regulations Part L for new construction.

Tested Performance & Compliance:

• Air Tightness: Independently tested and proven air-tight in both positive and negative air pressures at 50 Pa. Test certified to BS EN 1026:2000 and BS EN 12207:2000 for ceiling applications.
• Thermal Regulation: Insulated to fully comply with Part L of the Building Regulations (Conservation of Fuel and Power), essential for maximising property efficiency.

Insulation & Design Specifications:

• Material: Robust steel loft trap construction with clean lines and a smooth white powder-coated finish, positioning it as a market-leading aesthetic solution.
• Insulation Options: Variations offer tailored thermal performance: AT35 (60mm foam), AT25 (100mm foam), and AT15 (100mm PIR insulation), all bonded to the lid interior.
• Flush Aesthetic: The frame protrudes just 2mm from the finished ceiling, ensuring an exceptionally neat and flush installation.

Locking & Dimensions:

• Locking System: Standard operation via a twist lock with a tri-drive lock body (key supplied; pole available separately). An optional key lock is available (pole not compatible with this option).
• Key Dimensions: Fits a standard ceiling opening of 642 x 562mm, providing a clear opening of 520 x 560mm (hinged on the short side).

Loft ladder compatibility
The AT Range of loft hatches is compatible with our entire range of residential loft ladders (AL2, AL3, AL3C). For more information on our loft ladders, click here

*Hinged on the short edge.

   Code Structural Opening Required Clear Opening
(Once Installed)
Depth Weight U-Value
AT35 562x642mm* 520x560mm 60mm 5.9kg 0.35 W/m²k
AT25 562x642mm* 520x538mm 100mm 6.2kg 0.25 W/m²k
AT15 562x642mm* 520x538mm 100mm 6.8kg 0.15 W/m²k

Reviews

4.77 Based on 133 reviews
  • Really good fit, very tight door on opening, seals to stop any air coming through. Very happy with it would buy again. 6 screws hold it up a lot better looking than others I saw for the same money and its metal not naff plastic

    Paul 5 years ago
  • The loft hatch looks really great, clean looking with a good substantial lock, and most of all, easy to fit.

    Glenn Turner 5 years ago
  • Fantastic service from Jupiter blue. Ordered a hatch and ladders. Next day delivery. Had a small issue with the pole. The lady I spoke to couldn't have been more helpful and provided a replacement part which arrived the following day.

    Roy 5 years ago
  • Prompt supply and as described. Good airtight fit. Plus the wife is happy.

    Clive Wilson 5 years ago
  • Great easy fit and no draft from loft

    Andrew Hoppington 5 years ago
  • Overall, I'm happy I bought it

    Roy Jones 5 years ago
  • works perfectly

    Darren 5 years ago
  • Excellent product for price, 3rd purchase of same loft hatch as lowering ceilings and insulating at home.

    David wood 5 years ago
Read all customer reviews →

Specification

Frame style
Picture Frame
Fire rating
Non Fire Rated
Tested to
BS EN 1026:2000 and BS EN 12207:2000
Material
Zintec Steel, white finish
Frame width
25mm
Wall or ceiling
Ceiling Only
Insulated option
0.15/0.25/0.35 U Value options
Not sure which to choose? Call us on 01937 325 325 — we'll ask three quick questions and recommend the right one.
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Jupiter Blue Proof, not promises Est. 2007
Parcels dispatched since 2007
1.1M+
Customer rating
4.85/5 · 2,246
UK postcodes served
63,251
Next Day Delivery success rate
97.9%
Products in range
128

Figures combine verified reviews, our live catalogue, dispatch records since 2007 and carrier-reported delivery data. Nothing here is invented.