Roof Access Hatch

[Cora Auch]

Theangle at which a person ascends to the roof determines the size hatch required for convenient use. If a ladder is used, the hatch may be rather small since the person comes straight up to the roof. As the angle of ascent decreases, the hatch must be larger to prevent head-bumping accidents. Recommended minimum sizes for various types of roof access are shown above. If movement of bulky materials through the hatch is anticipated, double-leaf hatches with openings up to 66 sq. ft. or larger are available. Recent changes to the International Building Code require 16 sq. ft openings as the standard for various structures.

Note-the second dimension on hatch sizes denotes the length on the hinge side.

Hatches are available in several materials, including galvanized steel, aluminum, aluminum cover/galvanized steel curb or stainless steel. Galvanized Steel is finished with a White Powder Coat or a Cool Eco White water-based paint.

The JL Industries Galvanneal Roof Hatch RHDG-4WT ( RHG-4 ) 36 in. x 36 in. White Powder Paint Finish from Industrial Hardware and Specialties is designed for safe and easy roof access with higher insulation values to reduce building energy costs. The 36" x 36" Galvanneal Diamond Series Roof Hatch has a clear opening of 25" X 30". The Model RHDG-4WT ( Replaces RHG-4 ) has a 14 gauge galvannealed steel single wall curb, a formed and welded galvannealed steel cover ( Tested to support a live load...

The JL Industries Galvanneal Roof Hatch RHDG-5WT ( RHG-5 ) 48 in. x 48 in. White Powder Paint Finish from Industrial Hardware and Specialties is designed for safe and easy roof access with higher insulation values to reduce building energy costs. The 48" x 48" Galvanneal Diamond Series Roof Hatch has a clear opening of 37" X 42". The Model RHDG-5WT ( Replaces RHG-5 ) has a 14 gauge galvannealed steel single wall curb, a formed and welded galvannealed steel cover ( Tested to support a live load...

The JL Industries Aluminum Roof Hatch RHDA-5 ( RHA-5 ) 48 in. x 48 in. Mill Finish from Industrial Hardware and Specialties is designed to provide roof access from the interior of the building from a normal ladder, step ladder or stairs. The Model RHDA-5 ( Replaces RHA-5 ) has a 12" high curb made from 11 gauge aluminum and 3-1/2" wide flange around the base for securing to roof deck. The cover includes a 11 gauge aluminum exterior and 18 gauge aluminum liner with a TPE draft seal gasket door...

The JL Industries Aluminum Roof Hatch RHDA-4 ( RHA-4 ) 36 in. x 36 in. Mill Finish from Industrial Hardware and Specialties is designed to provide roof access from the interior of the building from a normal ladder, step ladder or stairs. The Model RHDA-4 ( Replaces RHA-4 ) has a 12" high curb made from 11 gauge aluminum and 3 1/2" wide flange around the base for securing to roof deck. The cover includes a 11 gauge aluminum exterior and 18 gauge aluminum liner with a TPE draft seal gasket door...

The JL Industries Aluminum Roof Hatch RHDA-2 ( RHA-2 ) 30 in. x 54 in. Mill Finish from Industrial Hardware and Specialties is designed to provide roof access from the interior of the building from a normal ladder, step ladder or stairs. The Model RHDA-2 ( Replaces RHA-2 ) has a 12" high curb made from 11 gauge aluminum and 3 1/2" wide flange around the base for securing to roof deck. The cover includes a 11 gauge aluminum exterior and 18 gauge aluminum liner with a TPE draft seal gasket door...

The JL Industries Galvanneal Roof Hatch RHDG-3WT ( RHG-3 ) 30 in. x 96 in. White Powder Paint Finish from Industrial Hardware and Specialties is designed for safe and easy roof access with higher insulation values to reduce building energy costs. The 30" x 96" Galvanneal Diamond Series Roof Hatch has a clear opening of 19" X 90". The Model RHDG-3WT ( Replaces RHG-3 ) has a 14 gauge galvanized steel single wall curb, a formed and welded galvannealed steel cover ( Tested to support a live load...

The JL Industries Aluminum Roof Hatch RHDA-3 ( RHA-3 ) 30 in. x 96 in. Mill Finish from Industrial Hardware and Specialties is designed to provide roof access from the interior of the building from a normal ladder, step ladder or stairs. The Model RHDA-3 ( Replaces RHA-3 ) has a 12" high curb made from 11 gauge aluminum and 3 1/2" wide flange around the base for securing to roof deck. The cover includes a 11 gauge aluminum exterior and 18 gauge aluminum liner with a TPE draft seal gasket door...

They are commonly accessed via stairways or ladders from inside the building. Additionally, safety rails or safety ladders are often installed on the exterior of the hatch to ensure safe and comfortable passage into and out of the opening.

Generally, an architect will specify the size and/or style of the hatch in the designs. It will then be left up to the general contractor or roofing subcontractor to source the hatch as part of their bid.

No. While they are used primarily in commercial construction, designers of residential buildings use them as points of egress to roof decks and gardens, making it easy for roof gardeners or amateur astronomers to get their supplies and equipment up to the roof safely and easily.

The Bilco LU-1 Ladder Safety Post provides easier, safer ladder access through roof hatches; floor, vault and sidewalk doors; and manholes. This telescoping post permanently mounts to the top two rungs of any fixed ladder, providing a positive hand-hold and enabling the user to enter or exit an opening in an upright and balanced position.

TYPE S ROOF HATCH Type S roof hatch, 36" x 30" (914mm x 762mm),the easy one-hand operation to the fully open or close position provides the ladder user the security of having one hand firmly on the ladder at all times. Fully gasketed and insulated construction for weather resistance. Available in galvanized steel or aluminum construction. Features Miami-Dade County and Florida Building Commission approval for use in high velocity hurricane zones with large and small missile impactEngineered...

The Bilco LU-4 Ladder Safety Post provides easier, safer ladder access through roof hatches; floor, vault and sidewalk doors; and manholes. This telescoping post permanently mounts to the top two rungs of any fixed ladder, providing a positive hand-hold and enabling the user to enter or exit an opening in an upright and balanced position.

The Bilco LU-2 Ladder Safety Post provides easier, safer ladder access through roof hatches; floor, vault and sidewalk doors; and manholes. This telescoping post permanently mounts to the top two rungs of any fixed ladder, providing a positive hand-hold and enabling the user to enter or exit an opening in an upright and balanced position.

The Flat Roof Metal Hatch is an insulated metal hatch for accessing a flat roof. It can be combined with the LML wide-step metal attic ladder or any FAKRO attic ladder for ease of access. The piston-assisted hatch stays open at a 80-degree angle while anti-slip covers on the frame ensure safe footing.

This rugged, roof access door is designed to provide secure, convenient and weather-resistant access onto roofs in applications such as hotels, apartments, hospitals, industrial facilities or any location where access to a ceiling/roof is necessary. Featuring heavy-duty, 14 gauge galvanized steel construction with a re-coatable gray primer finish, hatch is fully insulated and comes with a heavy-gauge extruded rubber gasket to keep out the exterior weather elements. MADE IN USA.

BILCO is committed to producing roof access products that are unequalled in quality, design, and workmanship. Our Roof Access Hatches are manufactured to the highest standard and comply with National Building Regulations for safe access to roof areas.

Acudor Equipment Access Roof Hatches are designed to provide convenient, economical access to the roof of a building where larger openings are required. This opening allows for equipment to be installed or removed from a building through the roof.

Surespan Inc are a leading manufacturer of sliding rooftop access solutions. Our thermally broken and insulated sliding hatches can be custom made to any size. Available as both glass sliding skylights and solid lid. Smaller sizes can utilize telescopic rails while larger sizes slide back on external rails. Powered and manual opening options are available. Glass can be tailored to suit your site requirements even offering walk on glass tops.

Our sliding hatches are thermally broken and insulated as standard. They are made for use on a roof so are normally completely watertight assuming correct installation. Our hatches are designed to be robust and last for many years.

Our roof hatches can be offered with a Sureguard handrail with a self-closing gate. This is fixed to the curb of the hatch so no roof penetration is required. The guardrail can be powder coated to any color to improve visibility.

Shop roof hatches from Milcor, Babcock Davis, Cendrex, and JL Industries designed for accessibility and safety in commercial spaces. Galvanized steel and aluminum construction offer lightweight durability ideal for warehouses, offices, schools, and more. Multiple sizes with single and double leaf openings available for ladders, stairs, and equipment applications.

The vinyl curb mounted (VCM) roof access hatch is a factory assembled unit consisting of an extruded vinyl base frame with all corners fusion welded to ensure an effective watertight frame and condensation gutter.

Smoke, heat, and limited fire visibility can lead to disorientation, panic, reduced reaction time, and increased health risks for firefighters. Firefighters also face significant health risks from smoke inhalation and heat exposure.

Roof smoke vents are crucial safety devices that minimize smoke, heat, and toxic fumes during a fire. They enhance visibility, reduce smoke inhalation risks, and prevent heat buildup. They ensure safety, protect property from fire damage, and meet building code requirements. They come in various forms like acoustical, daylighting, and standard vents, each offering unique benefits.

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