Karp’s Roof Hatches now maintain heavy gauge stiffeners for added support and stability along with an increased gauge of aluminum for greater durability and strength. The exterior handle has been replaced with a push-button lock release located on the front side of the cover, shielded from environmental elements to prevent water accumulation and leakage.

All gasket has been replaced with new wider and more durable gasket to maximize the door/curb seal and ensure a watertight closure. All edges have been rounded for improved safety. Advanced assembly method allows for reduced welding blemishes.

Roof Hatches are available in galvanize model KHRG or aluminum model KHRA and are finished with EPA approved electrostatic paint.

KRHA Roof Hatch Specifications

• Curb:  12″ high, .125 alum., integral counterflashing, 3-1/4″ wide mounting flange and 1″ exterior fiberboard insulation with corner guards.
• Cover:  .125 aluminum with 22 gauge galvanized liner.
• Compression Springs: Cover is assisted by enclosed compression springs.
• Hinges: Cover is mounted on steel butt hinges with brass pin and be complete with closed-cell rubber weather seal, automatic hold open arm with red vinyl grip, and latching devices having inside and outside handles and padlock hasp.
• Hardware: All hardware is zinc or cadmium plated.
• Finish: Prime painted with rust-inhibiting primer.
• Finish Option: This roof hatch is also available in galvanized finish.

KRHA Roof Hatch Options

• The cylinder locking device provides keyed access from the outside of the door.  The night latch also has a small thumb latch that allows the spring latch to remain in retracted position, which allows access at any time.
• Aluminum is ideal for any installations or environments that require a strong, lightweight and rust-resistant access door.
• To facilitate access and reduce door load, Karp can manufacture access doors in a double leaf style.

Special sizes and modifications available upon request.

Contact us for more information on custom sizes and additional locking information.