2 Hour Fire Rated Uni-Directional

2-Hour Uni-Directional Fire-Rated Hazardous Storage Buildings

Safety Storage FS Series

FS Series – Proven Protection, Code-Compliance Guaranteed
When safety and compliance are paramount, the FM Approved FS Series hazardous material storage buildings offer unparalleled peace of mind. Featuring a UL-approved 2-hour uni-directional fire-rated wall system, these units are designed for high-risk areas—perfect for locations within 10ft of other buildings or tight property lines.

Engineered to meet or exceed local building codes, FS Series storage buildings combine robust performance with code-compliant design, ensuring your operation remains secure and inspection-ready.

Construction

Exterior Wall Construction

Weatherproof 2-hour fire-rated noncombustible construction, with multiple layers of UL Classified fire-resistive gypsum wallboard encased between interior galvannealed steel sheets & exterior welded heavy gauge steel sheets for maximum durability, weather resistance & rigidity. Gypsum wallboard layers are offset with overlapping joints for maximum fire-resistance.

Sump Wall Construction

Weatherproof 2-hour fire-rated noncombustible construction, same as exterior walls.

Roof/Ceiling Construction

Weatherproof 1-Hour Fire Resistant Membrane, utilizing interior galvannealed steel sheets & continuously welded heavy gauge steel roof sheets for maximum durability and weather resistance. Roof/ceiling permanently attached to exterior walls.

Explosion Relief Construction

The FSE Model includes explosion vent panels, compliant with NFPA 68, and meets the 215 PSF Damage-Limiting design requirements for FM Approval.

Standard Features

All Safety Storage FS and FSE Series Fire Rated buildings are free-standing, relocatable chemical storage and containment structure.

Safety Storage FS and FSE Series Fire Rated structures are designed to meet critical storage, dispensing, or process applications. Each structure includes the following components for storage of flammable or combustible liquids and other hazardous materials.

Factory Mutual System (FM)

Approved & Labeled.

Three-hour fire-rated double door(s)

60”W x 80”H, UL Classified & Labeled, equipped with UL Listed self-closer(s) and UL Listed exterior security lock(s) with keyless interior safety release lever(s).

Screened Air Vent(s)

Air inlet vent(s) equipped with UL Classified & Labeled 3-hour rated fire dampers with louvers & screens to provide air flow. Dampers have a galvanized steel frame, curtain-type galvanized steel blades, and a UL Listed 165°F fusible link.

Building Base

Open channel construction for forklift and/or crane slings and under building inspections.

Internal Spill Containment Capacity

Minimum 30% of total storage capacity. Surpasses regulatory and Factory Mutual requirements for spill containment.

Interior Finish

High solids, chemical-resistant epoxy primer with a white aliphatic polyurethane topcoat.

Exterior Finish

High solids, chemical-resistant epoxy primer with a heat reflective white aliphatic polyurethane topcoat.

Hold-down Brackets (4)

Structural steel angles for bolting to purchaser’s foundation for seismic and wind load anchoring.

Static Grounding System

One (1) exterior grounding connection, one (1) 10-foot long 5/8” diameter copper-clad steel grounding rod, one (1) #6AWG copper conductor, and grounding lug(s).

Signage

D.O.T. hazard classification placard with rust-proof aluminum holder & stainless steel clips; and pressure sensitive NFPA 704 Hazard Rating Sign(s).

UL Classified & Labeled

Base Undercoat – Asphaltic-based, tack-free, flexible base undercoating for superior rust and corrosion protection.

Warranty

15-year structural and 1-Year warranty on option and finish.

Standard Dimensions

Safety Storage hazardous material storage buildings are available in a variety of standard sizes to meet your storage capacity requirements. Our standard sizes are listed below.

Actual Height

104” – 120” (Over Height Options Available)

Exterior Nominal Width

6’, 8’, 10’, 12’, 14’, 16’

Exterior Nominal Length

8’ – 52’ (2’ Increments)

Tailored Solutions for Your Unique Storage Needs!