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RHDG Steel Diamond Series™

*Red option shown with wood nailer - RHDG-1RT-IW (replacement for RHR-1)

The Diamond Series Roof Hatch is designed for safe and easy roof access with higher insulation values to reduce building energy costs.



-The embossed counterflashing design – Diamond Grip™ – quickly secures the roof membrane and backing rod without tools or sharp edges

- Springs are counterbalanced to comply with OSHA 1023 fall protection regulations for single-hand operation of latches from a ladder

- Durable factory-applied powder coat finish and corrosion-resistant hardware provide maximum protection


Product Details

Curb:  Single wall curb and counterflashing with Diamond Grip to secure roof membrane without tools. 14 gauge galvannealed steel, white textured powder coat paint.

Cover: Formed and welded with liner, tested to support a live load of 40psf. 14 gauge with 22 gauge liner galvannealed steel, white textured powder coat paint.

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

Insulation: 1” polyisocyanurate in curb and cover with thermal resistance R-6.

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

Latch: Clear zinc-plated steel slam latch with inside and outside handles and padlock hasps. Tested to 50psf wind uplift.

Hold Open Arm: Clear zinc-plated automatic locking hold open arm with red vinyl grip for one handed door operation.

Hinge: Heavy duty clear zinc-plated steel pintle hinge.

Product Resources


Standard Sizes

Part Number Size Access Exact Submital
RHDG-1WT 36" x 30" Ladder PDF Download Button
RHDG-2WT 30" x 54" Stair PDF Download Button
RHDG-3WT 30" x 96" Stair PDF Download Button
RHDG-4WT 36" x 36" Ladder PDF Download Button
RHDG-5WT 48" x 48" Ladder PDF Download Button
RHDG-6WT 32" x 72" Stair PDF Download Button
RHDG-7WT 37" x 30" Ladder PDF Download Button


Cross Reference


Installation & Maintenance


CAD Drawing

Replacement Parts

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