GOOD OLB

Hatch

• sandwich-type insulated hatch, 2.6 cm thick.
• finished on both sides with white HDF board.
• equipped with a snap lock.
• opened using the supplied control rod.

Box

• made of pinewood.
• reinforced at the corners with a spring catch.
• equipped with a perimeter seal.

Ladder

• three-section ladder.
• made of pinewood.

Treads

• connected to the ladder stringers using dovetail joints.
• equipped with profiled grooves intended to reduce the risk of slipping.

Available sizes
 60 × 111*, 60 × 120, 60 × 130, 70 × 111*, 70 × 120 and 70 × 130 cm.

* recommended length of the ceiling opening is 113 cm
/in all KRONMAT loft ladders models with a length of 111 cm, the actual length of the box is 111 cm/

Thermal performance

The 2.6 cm thick insulated hatch helps limit heat flow. The U-value of the central section of the hatch is 1.54 W/(m²·K).**

Finish

Both sides of the hatch are finished with white HDF board.

Snap lock

When the hatch is closed, the snap lock presses it against the seal.

Ease of use

The metal handrail provides an additional point of support when using the loft ladder.

** Manufacturer’s internal test for the central section of the hatch.

Technical data:

• Maximum loading: 150 kg 
• Ladder width: 38 cm
• Tread width: 8 cm
• Tread length: 34 cm
• Distance between treads: 25 cm
• Hatch thickness: 2.6 cm
• Box height: 14 cm
• Heat transfer coefficient*: U=1.54 W/m²K

*manufacturer’s internal testing for the middle part of the hatch