SJS-FR Interior

Interior Fire-Rated and Watertight, Seismic Expansion Joint For Data Centers, Warehouses, and Robotic Distribution Centers, Airports, Healthcare, etc.

An interior fire rated seismic expansion joint, SJS-FR1 (1-hour rated) and SJS-FR2 (2-hour rated) are now provided in two additional variations specifically designed for interior joint covers that require a fire rating: SJS-FR-NB and SJS-FR-Inlay.

SJS-FR-NB (No-Bump) is a fire-rated, flush seismic expansion joint designed for interior floor applications requiring smooth transitions and high-point loading support. Engineered for seamless integration into floor finishes, SJS-FR-NB provides a watertight, trafficable, and fire-rated solution without invasive anchoring.

The SJS-FR system features a flush, floor-compatible design. It is engineered to support rolling loads and concentrated weight without compromising joint integrity, making it ideal for high-point load applications.

With built-in UL 2079-certified fire protection and a watertight seal, SJS-FR provides reliable safety and moisture resistance. Its silicone-and-impregnated-foam hybrid construction absorbs sound and reduces vibration, enhancing comfort in interior environments.

Additionally, the system is surface-installed, eliminating the need for fire blankets, gutters, or under-slab mechanical coordination, simplifying installation and maintenance.

Ideally suited for data centers, warehouses, and robotics distribution centers, SJS-FR is installed level with the floor surface and provides a durable expansion joint solution that withstands heavy equipment loads and high-traffic environments.

SJS-FR-Inlay is a fire rated, surface mounted seismic expansion joint designed for interior floor applications that prioritize the flooring aesthetic with minimal disruption by the expansion joint cover.

SJS-FR-Inlay is an architecturally integrated floor expansion joint solution, accommodating various floor finishes. Its custom-fabricated coverplate is milled to accept flooring materials, creating an integrated flooring surface with minimal visual disruption.

Engineered for high-point load capability, the system supports concentrated and rolling loads without compromising structural integrity.

With built-in UL 2079-certified fire protection and a watertight seal, SJS-FR-Inlay delivers reliable safety and moisture resistance. Its silicone-and-impregnated-foam hybrid construction absorbs sound and reduces vibration, enhancing interior comfort.

Additionally, the system installs entirely from above the floor surface, eliminating the need for fire blankets, gutters, or under-slab coordination, simplifying installation while maintaining performance.

SJS-FR-Inlay delivers an all-in-one expansion joint solution tailored for demanding interior floor applications, ensuring long-term durability, safety, aesthetics, and functionality.

SJS-FR Interior

Interior Fire-Rated and Watertight, Seismic Expansion Joint For Data Centers, Warehouses, and Robotic Distribution Centers, Airports, Healthcare, etc.

Interior Fire rated seismic expansion joint cover with flush installation SJS-FR-NB from Sika Emseal

Interior Fire rated seismic expansion joint cover with integrated finished flooring coverplate SJS-FR-Inlay from Sika Emseal

Airport Concourse SJS Floor Expansion Joint Cover Transition to Wall at BNA Nashville International Airport by Sika Emseal

Airport Concourse SJS Floor Expansion Joint Cover at BNA Nashville International Airport by Sika Emseal

Airport Concourse Floor Expansion Joint Cover at BNA Nashville International Airport by Sika Emseal

Expansion Joints | Fire Rated, Durable, Invisible Anchors | Oakland International Airport | EMSEAL

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Interior fire rated seismic expansion joint cover SJS-FR-NB from Sika Emseal is watertight, traffic durable, flush installed and has a built-in UL-certified fire rating for up to 2 hours

Interior fire rated seismic expansion joint cover SJS-FR-Inlay from Sika Emseal is watertight, traffic durable, flooring integrated coverplate and has a built-in UL-certified fire rating for up to 2 hours.

SJS-FR-NB flush installed expansion joint cover at

SJS-FR-NB flush installed expansion joint cover at BNA Nashville International Airport Concourse column transition

SJS-FR-NB flush installed expansion joint cover at BNA Nashville International Airport Concourse accommodates rolling luggage and pedestrian foot traffic.

The seismic joint systems for Oakland International Airport were custom configured to suit 5, 7 and 9-inch (125, 175, and 225 mm) wide joint openings and with eight different cover plate configurations to suit field conditions and flooring types.

Features

Built-in, 1 or 2-hour fire-rating
UL 2079 certified
Meets the requirements of ASTM E1966, ASTM E119
and ASTM E1399
Recessed flush option
Watertight
Flooring integrated design
Traffic durable
ADA Compliant
Sound dampened
Non-invasive anchoring
Installs entirely from deck or floor above
No utility lifts or holding labor required
No fire blankets or gutters needed
No obstructions at columns or under-slab obstructions from HVAC, electrical, plumbing or mechanical materials
Self-locating plate anchors
Installs rapidly in new or retrofit conditions

Sizes

2″ to 10″ | 50 – 250mm
Product Depth: 6-inches | 150mm

Movement

Up to 100% Total (+50% and -50% of nominal supplied size.)

Color

Standard cover plate is aluminum with ADA-compliant, flint-blasted finish. Stainless steel also available.
Other finishes by request — contact Sika Emseal

Uses

Fire-rated concrete decks and floors
parking decks/car parks
stadiums
interior floors
mall bridge connectors
airports
data centers
warehouses
distribution centers

U.S. Patents

8,341,908
10,787,805
10,787,806

Features Explained

Watertight — Emshield products are installed with the silicone bellows facing the weather to ensure watertightness. A field-applied sealant band of supplied silicone at the bellows to substrate interface seals substrate irregularities and completes the installation.

UL/ULC Fire-Rated — Tested in accordance with the cycling and fire endurance requirements of UL-2079, listed by UL, and manufactured under UL’s Follow Up Service ensuring that what is shipped is the same as what was tested.

Non-Invasive Anchoring — There are no hard metal-to-substrate connections with Emshield. This includes embedded pins, anchors, screws, bolts or tracks, trays or rails, flanges or coverplates. The system is locked to the joint faces by means of the 1) backpressure of the foam; 2) the epoxy adhesive, and 3) the injected sealant bands at the joint face.

Joint-Size Variation —through size-switching, material can be supplied to handle variations in joint size.

Sound Attenuation — Joints sealed with EMSEAL impregnated foam sealants offer exceptional acoustic dampening and feature STC/OITC sound transmission coefficients that can meet or exceed that of the assembly into which they are installed.

Flush Installation — Recessed coverplate design results in a “No-Bump” installation ideally suited for applications that require a smooth floor surface.

Flooring Integration — Milled coverplate design allows for the ability to install the flooring finish into the expansion joint achieving a minimal interruption of the floor aesthetic.

Composition

Emshield fire rated expansion joint sealants features factory-applied, high-grade silicone upper and lower sealing surfaces adhered to a fire-retardant impregnated foam backing. The resulting composite is factory compressed to less than its nominal size for installation into structural or other openings.

The material is installed into epoxy adhesive field-applied to the joint faces. A field-injected silicone sealant band fills substrate voids and seals the bellows to the substrate. Joins between each stick are executed using a field-applied silicone sealant band at the face of the join and an intumescent sealant coating over the remaining foam at the adjoining faces.

Transitions & Terminations

Universal-90’s
(US Patent 9,200,437; 9,637,915)

Universal-90’s (or U-90’s) are factory-made 90-degree transition pieces that ensure continuity-of-seal and fire protection where expansion joints change plane.
Use of U-90’s eliminates the field work needed to make plane changes making overall installation fast and efficient.
Watertightness through the plane change is guaranteed–leaving nothing to chance in field-fabricating inside and outside transitions.
U-90 transitions are symmetrically coated on both faces allowing them to be installed as an inside corner or as an outside corner.
Straight-run sticks are joined in the field to the U-90’s.
U-90’s have a 12-inch (305mm) long leg and a 6-inch (152mm) vertical piece on each side of the elbow.

Custom-90’s
(US Patent 10,570,611)

Custom-90’s are available when field conditions and measurements are known up front.
Custom-90’s are widely used in stadium tread and riser applications or other applications where numerous inside and outside 90-degree transitions are required. Consult Sika Emseal.

Testing

Emshield products have been tested and certified under UL 2079 and meet the requirements of ASTM E1966, ASTM E119 and ASTM E1399. UL 2079, like ASTM E1966, was developed to encompass the fire testing of ASTM E119 and the movement cycling regime of ASTM E1399.

Designers should require UL 2079 testing and Follow-Up Service certification as the basis of specification of any fire barrier system. Only with UL’s Follow-Up Service can the designer be sure that the product being shipped has been independently audited to have been manufactured in the same manner to the material that was tested.

Where UL tested listings do not meet your specific project conditions ask EMSEAL for an engineered judgment. Engineered Judgments are based on our actual UL 2079 test data extrapolated using Finite Element Analysis modeling.

Emshield products have additionally been tested to ASTM-E283, E-330, and E-331 at levels to prove resistance to hurricane-force wind and rain.

UL Listings

See UL/ULC Listings for SJS-FR

Where UL tested listings do not meet your specific project conditions ask Sika Emseal for an engineered judgement.

Note: Sizes below 4-inches | 100mm are fire rated by engineered judgement.

Maintenance

As with any construction product, the useful life of the material can be maximized with routine inspection and repair if required.
Clearing of surface debris and inspection will reveal any damage to the product or adjacent substrates that might affect building performance.
Repair, if necessary of the system can be accomplished requiring only damaged sections of the foam-and-spline-assembly to be removed and reinstalled–not the entire length of the joint as is typical of extruded-seal systems. Consult Sika Emseal to discuss specific conditions.

Availability & Price

Available for shipment internationally.
Prices are available from local distributors or representatives and/or directly from the manufacturer.
The product range is continually being updated, and accordingly EMSEAL® reserves the right to modify or withdraw any product without prior notice.

SJS-FR Interior

Interior Fire-Rated and Watertight, Seismic Expansion Joint For Data Centers, Warehouses, and Robotic Distribution Centers, Airports, Healthcare, etc.

SJS-FR Interior