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RHDG Steel Diamond Series™ Roof Hatch

*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.

Options: 1.5" polyiso insulation, wood nailer, fiberboard, curb double wall, curb height, stainless hardware.

Find out how the two new standard sizes will help you meet IBC and OSHA requirements

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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BIM - RFA & TXT (Right click and save as)

Other Features


RHDG-1RT-IW (Replacement for RHR-1)