JL Industries RHDA-5 48 × 48 Roof Hatch – Diamond Series Aluminum, R-6 Insulation, Ladder Access

The JL Industries RHDA-5 Diamond Series aluminum roof hatch is designed to provide safe ladder access with a generous 48″ × 48″ clear opening. Built with corrosion-resistant aluminum, both the curb and cover are insulated to R-6 for energy efficiency. The gas spring-assisted lid offers smooth operation, while a lockable latch ensures secure access from inside or outside. Engineered for durability and performance, this hatch is ideal for commercial, institutional, and industrial applications requiring reliable rooftop access.

Key Features

• 48″ × 48″ clear opening for ladder access
• R-6 insulated curb and cover for energy efficiency
• Heavy-duty corrosion-resistant aluminum construction
• Gas spring-assisted lid with lockable latch

Model: RHDA-5

Manufacturer: JL Industries / Activar Construction Products Group

Series: Diamond Series

Dimensions: 48″ × 48″ clear opening

Frame/Curb: Aluminum curb insulated to R-6

Cover: Aluminum cover with R-6 insulation

Material: Corrosion-resistant aluminum

Operation: Gas spring-assisted lid for controlled lift and closure

Hinge: Heavy-duty continuous hinge

Latch: Lockable latch operable from inside and outside

Finish: Mill finish aluminum (standard)

Application: Ladder access to roof areas

Country of Origin: USA

• Verify the roof opening matches the 48″ × 48″ hatch size.
• Set the hatch curb into the prepared roof opening, ensuring level placement.
• Secure the curb to roof framing with manufacturer-approved fasteners.
• Flash and seal the curb with the roofing membrane for watertight installation.
• Test the lid to confirm smooth gas spring operation.
• Check the latch for proper locking and unlocking from both inside and outside.

Q: What are the dimensions of the RHDA-5 roof hatch?
A: The clear opening is 48″ × 48″.

Q: Is the RHDA-5 hatch insulated?
A: Yes, both the curb and cover are insulated to R-6.

Q: What material is the RHDA-5 constructed from?
A: It is made from corrosion-resistant aluminum.

Q: Can the latch be locked from outside?
A: Yes, the lockable latch operates from both inside and outside.

Q: What type of access is this hatch designed for?
A: The RHDA-5 is designed for ladder access.