JL Industries RHDG-3WT 30 × 96 Roof Hatch – Diamond Series, White Powder Coat

The JL Industries RHDG-3WT is a stair-access Diamond Series roof hatch constructed of galvannealed steel. It features 1″ polyisocyanurate insulation (R-6) in both curb and cover, and uses the Diamond Grip embossed counterflashing to secure roof membranes without tools. The hatch weighs ~289 lb, offers a clear opening of 19″ × 90″, and a 75° door opening.

Key Features

• 30″ × 96″ stair-access configuration
• Galvannealed steel curb and cover with 1″ polyiso insulation (R-6)
• Diamond Grip tool-free securement of roof membrane
• Automatic locking hold-open arm, 75° opening
• Clear opening of 19″ × 90″, tested live load 40

Curb: 14 gauge galvannealed steel single wall curb and counterflashing with Diamond Grip

Cover: 14 gauge galvannealed steel with 22 gauge liner, formed and welded, tested to support 40 psf live load

Finish: White textured powder coat paint

Gasket: Continuous, weatherproof EPDM sponge rubber adhesive-backed seal

Insulation: 1″ polyisocyanurate in curb and cover (R-6)

Hinge: Heavy duty clear zinc-plated steel pintle hinge

Hold-open arm: Automatic locking hold-open arm with red vinyl grip

Latch: Clear zinc-plated steel slam latch with inside/outside handles and padlock hasps

Springs: Counterbalanced compression springs contained in clear zinc-plated steel cylinders

Clear opening: 19″ × 90″

Door opening: 75°

Weight: 289 lb

• Verify roof opening and framing match 30″ × 96″ stair-access dimensions.
• Place curb and orient hinge side parallel to roof pitch (if ≤ 7:12).
• Fasten curb per project specification, ensuring full gasket contact.
• Install cover, check that hold-open arm locks and door opens 75°.
• Test slam latch from inside and outside; use padlock hasps if security needed.

Q: What is the insulation value of RHDG-3WT?
A: The curb and cover include 1″ polyisocyanurate providing R-6 thermal resistance.

Q: What are the clear opening dimensions?
A: 19″ × 90″.

Q: What is the weight of this roof hatch?
A: Approximately 289 lb.

Q: What live load is the cover rated for?
A: 40 psf.

Q: What is the door opening angle?
A: 75°.