RHGDD Galvanized

RHGDD Domed Access Door

Product Overview

RHGDD Domed Access Door Introduction

Acudor Domed Roof Hatches are designed to provide convenient, economical access to the roof of a building. These hatches are standard with a Polycarbonate Dome which provides the benefit of a skylight.


Double-skin construction (“in box type design”) with 1" Polyiso (R-6) insulation and a continuous EPDM foam weather/draft seal gasket that is attached to the inside of cover to provide a flush, tight fit. Designed to support a live load of 40lbs./sq. ft., the cover is 1/8" thick aluminum, with a 20 gauge aluminum inside liner.


14 gauge galvanized steel with 1" thick Polyiso (R-6) insulation with Fiberglass liner at curb exterior. Curb is 12" high, with 3.375" wide bottom flange and pre-drilled mounting holes.


Heavy duty galvanized steel pintle hinges with 3/8" SS pin


Gas spring operators allow cover to open and close with ease. Stainless Steel inside pull handle allows for easy control when closing cover.

Door Latch

Self latching, Stainless Steel outside T handle with stainless steel inside lock and lever assembly. Unit also has inside and outside padlock provisions.


Material is prepared with an iron phosphate wash, followed by a rust inhibiting primer, and then a baked on polyester enamel grey paint.

Product Highlights

  • Clear, bronze, white, combination polycarbonate double-skin dome

  • Stainless Steel Hardware standard on all hatches

  • 1" Polyiso (R-6) insulation standard on all hatches

  • EPDM foam weather/draft seal gaskets provides weather tight construction

Cta keyboard red

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RHGDD Standard Sizes

(other sizes available)

 Curb ID W&LWeight per Hatch
Modelinches (mm)lbs. (kg.)
GD323224 X 24 (610 X 610)125 (56.8)
GD324424 X 36 (610 X 914)135 (61.4)
GD383830 X 30 (762 X 762)140 (63.5)
GD384430 X 36 (762 X 914)155 (70.5)
GD444436 X 36 (914 X 914)170 (77.3)

For detailed specifications see submittal sheet

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