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RHDA Aluminum Diamond Series™ Roof Hatch

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


Product Details

Curb:  Single wall curb and counterflashing with Diamond Grip to secure roof membrane without tools. 11 gauge aluminum mill finish.

Cover: Formed and welded with liner, tested to support a live load of 40psf. 11 gauge with 18 gauge liner aluminum mill finish.

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, PVDF finishes.

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

Product Resources

Standard Sizes

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



Cross Reference


Installation & Maintenance


CAD Drawing

Replacement Parts

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