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Flat Roof Access Hatch

$1,412.60

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SKU BG3630

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The Flat Roof Access Hatch provides superior weather protection in a ready-to-ship configuration. Designed for durability and adaptability, it accommodates OSHA-compliant safety railings and is available in a variety of sizes, materials, and finishes to meet the needs of modern flat roof systems.
Would you like a version that emphasizes architectural integration or energy efficiency?

Key Features

Miami-Dade & Florida approval (up to 20 ft²)
Safety railing compatible
Durable powder-coated finish
Smooth gas spring-assisted opening

Roof Hatch Access: Ladder

Color: Red oxide powder coat (as pictured)

Certification: Florida Product Approval FL40712 and Miami-Dade County, FL NOA #
21- 1201.02, Expiration Date May 25, 2027

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Need a written quote? Request Online
Questions? Call (800) 604-5537

Specifications

Model	BRHU
Material	Steel, 14 gauge galvanneal
Finish	Red Oxide Powder Coat
Cover	Formed metal cover with liner internally stiffened to withstand a live load of 40 psf with a max deflection of 1/150 the span
Curb	Single wall curb with railing‑ready EZ tab counterflash and mounting flange
Insulation	1 inch polystyrene in cover, 1 inch polyiso around curb; R‑6
Gasket	Extruded EPDM adhesive‑backed gasket seal, continuous around curb and cover to assure a continuous seal
Hold Open Arm	Zinc plated steel automatic hold open arm locks cover in open position
Latch	Zinc plated steel latch with exterior and interior turn handle and padlock hasp; tested to 140 psf wind uplift
Warranty	Five (5) years
Certification	Florida Product Approval, Miami‑Dade County Approved NOA# 21‑1201.01, Expiration Date May 25, 2027
Spring	Gas spring with damper for smooth, controlled lift assistance
Hinge	Heavy‑duty pintle hinge with stainless steel hinge pin
Pull Handle	Interior safety pull‑down handle, yellow powder coat

Documents

To download product documents such as specs, shop drawings, warranty and installation information visit the Personnel Series Roof Hatch Document Download Page >

Shipping Time

All Roof Hatches ship for free (standard ground, see map)
Call: (800) 604-5537 for pricing and shipping questions.

Shipping estimates shown on the map pertain to this specific product only. Roof Hatch orders ship within 5 business days. Transit times displayed in the map are listed in business days, and are approximate. Transit times are subject to stock levels at regional warehouses. The day that the order is shipped is not counted as a transit day.

Buyer’s & Installer’s Guide

Flat Roof Access Hatch: Commercial-Grade Selection, Installation & Maintenance (with Case Study)

Product: Flat Roof Access Hatch · Typical Access: Ladder · Finish/Color Options: Durable powder coat

The Flat Roof Access Hatch is a ready-to-ship, weather-resistant entry point for commercial roofs. In plain English, it’s a lockable, insulated doorway through the roof that gets technicians to HVAC, solar, and drainage equipment quickly—without relying on exterior ladders or propped stairwell doors. It’s compatible with OSHA-compliant safety railings and comes in multiple sizes, materials, and finishes to match your building and climate.

Key Features:

Miami-Dade & Florida approval (select sizes up to 20 ft²)
Safety-railing compatible curb with railing-ready tabs
Durable powder-coated finish for corrosion resistance
Gas spring-assisted opening for smooth, controlled lift

Technician stepping through a flat roof access hatch — Direct, Safe Access for Technicians

What Is a Flat Roof Access Hatch? (Simple Definition)

A flat roof access hatch is a hinged, insulated cover mounted to a curb that forms a sealed opening in the roof deck. Think of it as a dedicated doorway to the rooftop—improving safety, security, and efficiency for routine service.

Performance Highlights (in Plain Terms)

Strength: Internally stiffened cover typically rated for 40 psf live load (max deflection L/150) to resist denting and flex.
Weather seal: Continuous EPDM gasket around curb and cover helps block wind-driven rain.
Thermal value: Factory insulation around R-6 limits heat transfer at the opening.
Safety & control: Gas springs with dampers for smooth opening, automatic hold-open arm, and robust latch assemblies (often tested to 140 psf wind uplift).

Commercial rooftop with HVAC units served by a flat roof access hatch — Place Hatches Near Service Zones

How to Choose the Right Flat Roof Access Hatch (Step-by-Step)

Opening size: Confirm clear opening for personnel, tools, and any pass-through equipment.
Material & finish: Select steel or other alloys and a powder-coat suited to your environment (industrial, coastal, high-traffic).
Local approvals: In hurricane-prone regions, specify models with Miami-Dade/Florida approval (qualified up to 20 ft²).
Safety rails: Use curb railing-ready tabs to integrate OSHA-compliant guard rails at installation or later.
Wind & security: Choose latch/hinge packages that resist uplift (e.g., ~140 psf) and accept padlocks.
Interior approach: Align a fixed ladder or ship’s stair directly beneath the hatch for safe egress.
Placement: Position the hatch so walk paths to rooftop equipment are short and away from roof edges.

Worker ascending a ladder through a flat roof access hatch — Aligned Ladder-to-Hatch Egress

Case Study: Office & Retail Complex — Gulf Coast

Scenario: A multi-building office/retail campus needed faster, safer access for quarterly HVAC service and storm-readiness inspections. The facilities team requested locally recognized approvals and a curb that would simplify guard-rail integration.

Solution

Product: Flat Roof Access Hatch with durable powder-coat
Compliance: Configured with Florida/Miami-Dade approvals for unit sizes within the 20 ft² threshold
Details: Railing-ready curb tabs; continuous EPDM gasket; gas spring-assisted opening; heavy-duty hinge; security latch compatible with padlocks
Access Path: Fixed ladders aligned directly under each hatch to shorten travel to air handlers

Results

Safety: Guard-rail compatibility standardized fall-protection procedures at each opening.
Efficiency: Technicians reduced roof access time and reached service zones more directly.
Weather resilience: Gasketed seal and robust hinge/latch improved performance during summer storms.

Installation & Maintenance Essentials

Layout & structure: Verify structural opening and blocking per drawings.
Set the curb: Plumb/level; fasten per spec to deck or framing.
Flash the curb: Follow roof-membrane manufacturer details to protect the warranty.
Mount the cover: Attach hinges; verify gas-spring control and automatic hold-open function.
Seal & hardware: Confirm continuous EPDM gasket contact and positive latch engagement from both sides.
Safety systems: Install OSHA-compliant guard rails using curb tabs; align the interior ladder or stair.

Maintenance tips: Inspect hinges, gas springs, gaskets, and latches quarterly; clear debris; confirm hold-open locks securely; re-coat per finish guidelines.

Frequently Asked Questions

Do I need Miami-Dade/Florida approval?

Many hurricane-exposed jurisdictions require Florida and/or Miami-Dade approvals. Select hatch configurations cover units up to 20 ft²—confirm with your AHJ before submittal.

How weather-tight is a flat roof access hatch?

A continuous EPDM gasket and uplift-resistant latching help keep wind-driven rain out when the curb is properly flashed and the cover is fully latched.

Can I add guard rails later?

Yes. Railing-ready curb tabs let you integrate OSHA-compliant rails during the project or as a future upgrade.

What about energy performance?

Factory insulation around R-6 helps limit thermal transfer at the opening. Coordinate with the overall roof assembly to meet energy targets.