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Serving all of the USA, Canada, Australia and the Middle East, MIFAB can provide you with the quality, engineered plumbing and drainage solutions you need. Innovative product designs save the installer time and material cost and provides the owner with higher quality cast stainless steel drains and cleanouts for the same cost as the industry standard nickel bronze. Contact us today to learn more.

All Categories  > Access Doors  > RHA, RHG Roof Hatch

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Specification: MIFAB® Series RHA and RHG roof hatches are designed to provide convenient, economical access to the roofs of buildings. They are available in either prime coated galvanized steel (RHG) or aluminum (RHA). All hatches are designed with weather resistant gasketing to ensure long life, low maintenance and ease of operation. Roof hatches install easily over the roof opening and are secured from the base flange to the roof deck.

Material - RHG cover is 14 gage galvanized steel and 20 gauge steel liner. RHA cover is .090” aluminum with a .050 aluminum liner. The inside of the cover is gasketed with a neoprene weather seal to provide a flush, tight, fit. Covers are insulated with 1” (25) of fibreboard and are designed to support a snow load of 40 lbs. per square foot. The frame for the RHG Series is 14 gage galvanized steel and the frame for the RHA Series is .090” aluminum.

Curb - Curbs are 12" (305) high with 4" (102) wide rounded corner flashing flangecomplete with 1" (25) fibreboard insulation.

Hinge - Formed steel hinges with stainless steel pins.

Finish - RHG Series is a primed white finish. RHA Series is an aluminum mill finish.

Opening - Hydraulic column operators allow cover to open and close easily.

Device - Cover is equipped with an automatic hold open arm with a red vinyl grip release that keeps the cover in an open position when needed, and allows for easy control when lowering the latch cover.

Handle - Self latching outside cadmium plated steel turn handle with inside lever handle allows cover to always latch securely.

Latch - Locking hasps are located both inside and outside of the cover. All hardware is cadmium plated steel.

Results Per Page  
Returned 20 Results
Model # Material Door Size (B x A) Inside Frame Dimensions Outside Frame Dimensions Roof Opening Shipping Weight
RHG2424 Galvanized 24" x 24" (610 mm x 610 mm) 24" x 24" (610 mm x 610 mm) 31" x 31" 24" x 24" (610 mm x 610 mm) 125.00 lbs.
RHG2430 Galvanized 24" x 30" (610 mm x 762 mm) 24" x 30" (610 mm x 762 mm) 31" x 37" 24" x 30" (610 mm x 762 mm) 130.00 lbs.
RHG2436 Galvanized 24" x 36" (610 mm x 914 mm) 24" x 36" (610 mm x 914 mm) 31" x 43" 24" x 36" (610 mm x 914 mm) 135.00 lbs.
RHG3030 Galvanized 30" x 30" (762 mm x 762 mm) 30" x 30" (762 mm x 762 mm) 37"x 37" 30" x 30" (762 mm x 762 mm) 145.00 lbs.
RHG3036 Galvanized 30" x 36" (762 mm x 914 mm) 30" x 36" (762 mm x 914 mm) 37" x 43" 30" x 36" (762 mm x 914 mm) 155.00 lbs.
RHG3054 Galvanized 30" x 54" (762 mm x 1371 mm) 30" x 54" (762 mm x 1371 mm) 37" x 61" 30" x 54" (762 mm x 1371 mm) 225.00 lbs.
RHG3096 Galvanized 30" x 96" (762 mm x 2438 mm) 30" x 96" (762 mm x 2438 mm) 37" x 103" 30" x 96" (762 mm x 2438 mm) 335.00 lbs.
RHG3636 Galvanized 36" x 36" (914 mm x 914 mm) 36" x 36" (914 mm x 914 mm) 43" x 43" 36" x 36" (914 mm x 914 mm) 200.00 lbs.
RHG3648 Galvanized 36" x 48" (914 mm x 1219 mm) 36" x 48" (914 mm x 1219 mm) 43" x 55" 36" x 48" (914 mm x 1219 mm) 430.00 lbs.
RHG4848 Galvanized 48" x 48" (1219 mm x 1219 mm) 48" x 48" (1219 mm x 1219 mm) 55" x 55" 48" x 48" (1219 mm x 1219 mm) 430.00 lbs.
RHA2424 Aluminum 24" x 24" (610 mm x 610 mm) 24" x 24" (610 mm x 610 mm) 31" x 31" 24" x 24" (610 mm x 610 mm) 60.00 lbs.
RHA2430 Aluminum 24" x 30" (610 mm x 762 mm) 24" x 30" (610 mm x 762 mm) 31" x 37" 24" x 30" (610 mm x 762 mm) 65.00 lbs.
RHA2436 Aluminum 24" x 36" (610 mm x 914 mm) 24" x 36" (610 mm x 914 mm) 31" x 43" 24" x 36" (610 mm x 914 mm) 70.00 lbs.
RHA3030 Aluminum 30" x 30" (762 mm x 762 mm) 30" x 30" (762 mm x 762 mm) 37"x 37" 30" x 30" (762 mm x 762 mm) 80.00 lbs.
RHA3036 Aluminum 30" x 36" (762 mm x 914 mm) 30" x 36" (762 mm x 914 mm) 37" x 43" 30" x 36" (762 mm x 914 mm) 85.00 lbs.
RHA3054 Aluminum 30" x 54" (762 mm x 1371 mm) 30" x 54" (762 mm x 1371 mm) 37" x 61" 30" x 54" (762 mm x 1371 mm) 135.00 lbs.
RHA3096 Aluminum 30" x 96" (762 mm x 2438 mm) 30" x 96" (762 mm x 2438 mm) 37" x 103" 30" x 96" (762 mm x 2438 mm) 245.00 lbs.
RHA3636 Aluminum 36" x 36" (914 mm x 914 mm) 36" x 36" (914 mm x 914 mm) 43" x 43" 36" x 36" (914 mm x 914 mm) 110.00 lbs.
RHA3648 Aluminum 36" x 48" (914 mm x 1219 mm) 36" x 48" (914 mm x 1219 mm) 43" x 55" 36" x 48" (914 mm x 1219 mm) 270.00 lbs.
RHA4848 Aluminum 48" x 48" (1219 mm x 1219 mm) 48" x 48" (1219 mm x 1219 mm) 55" x 55" 48" x 48" (1219 mm x 1219 mm) 305.00 lbs.
Returned 20 Results
MIFAB, Inc.
1321 West 119th Street Chicago, IL 60643
Toll Free: 800.465.2736
Tel: 773.341.3030
Fax: 773.341.3047
E-mail: sales@mifab.com