Manufacturer and supplier of roof products and accessories for the metal building industry since 1964

Roof Hatch for Metal Buildings

Metal Building Roof Hatch

R&S Metal Building Roof Hatch for safe roof access via interior fixed ladder. The integral metal building curb flashes to any Standing Seam, R-Panel or Insulated Metal Panel roof system.  As a result, there is no need for a separate curb or flashing. Common sizes are 2′-6″ x 3′ and 3′ x 3′.

Our roof hatches are 0.125″ aluminum for ultimate durability. Curbs include 1″ (R6.5) insulation with higher R-Values also available. The perimeter rubber gasket insures long-term protection against leaks. Gas springs with dampers deliver smooth and controlled lift assistance. Hold open arm with vinyl grip locks lid in open position. All Metal Building Roof Hatches include interior and exterior padlocks with concealed hardware for complete security. Several options are available; for example: steel construction, custom color finish, custom size, integral OSHA-compliant safety rail and safety post (ladder-up). Lastly, replacement parts are readily available and easy to install.

  • Description
  • Model Guide
  • Sizes and Weights
  • Documents


  • Fully welded and assembled
  • 0.125 aluminum or 14 GA steel
  • 1″ Rigid Insulation R7.2 (higher R-Values available)
  • Metal building caps and closures
  • Aluminum: 0.125″ cover with 0.040″ aluminum liner
  • Steel: 14 GA galvanized with 22 GA galvanized steel liner
Gasket EPDM rubber gasket secured to lid
Hinge 12 GA galvanized steel / stainless steel hinge pins
  • 12 GA galvanized slam latch
  • Interior / exterior manual release
  • Integrated padlock hasp
Dimensions 12″ high curb
Grasp Inside grasp handle to assist closing
Lift Gas spring(s)
  • Aluminum / steel mill finish
  • Powder coat (standard colors or custom)
  • Kynar (exact match)
  • Safety Post (Ladder Up)
  • Hand railing / access gate
  • Fixed steel or aluminum ladder
Options Dome lid for natural daylighting
Tolerance 30 PSF Uplift, 40 PSF Live Load
  • 5 Years (aluminum)
  • 1 Year (steel)


Daylight Model Domed lid for natural daylighting
Pitch Corrected Level top as specified
Stainless Steel Hardware Stainless steel hinge / latches components
Loose Closures / Caps Closures caps shipped loose for field location

Roof Access Hatch Model Guide

Model LxWxH Material Base Type Hatch Top Finish Options (add all that apply)
RAH  12″ Typ (Minimum)
  • A: Aluminum
  • G: Galvanized Steel
  • S: Stainless Steel
  • SF: Self-Flashing
  • CM: Curb Mount
  • MB: Metal Building
  • S: Slope w/ Roof (Typ)
  • L: Level
  • M: Mill
  • P: Powder Coat
  • K: Kynar
  • DL: Skylight Dome Lid
  • LC: Loose Closures / Caps
  • SH: Stainless Steel Hardware


RAH-3636×12-A-MBS-P-SH: 36″ x 36″ clear opening, 12″ high curb. Aluminum construction with integral metal building roof curb. Slope-mounted with a powder coat finish and stainless steel hardware.

Standard Sizes and Shipping Weights

Model Inside Clear Opening Weight Aluminum (lbs) Weight Steel (lbs) Live Load (psf)
3030 30″ x 30″ 140 185 40
3036 30″ x 36″ 145 190 40
3048 30″ x 48″ 175 200 40
3054 30″ x 54″ 160 210 40
3096 30″ x 96″ 165 220 40
3636 36″ x 36″ 150 200 40
4242 42″ x 42″ 160 210 40
4848 48″ x 48″ 165 220 40


Product Description Model Submittal Specs Installation Warranty
Metal Building Hatch
Metal Building Hatch

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R&S manufactures a vast array of products to fit your project needs. We aim to supply all of your metal building roof accessory needs, not just one product. Why go to multiple vendors when R&S can supply it all?