Architectural Seismic Movement Joint Systems: styleJOINT I-EJA®
Looking ahead to our 25th anniversary: Global leaders in architectural seismic expansion joint systems. Turnkey engineering support, ASTM E1399 compliance, and certified 5-year structural warranties.
styleJOINT I-EJA® represents our premier line of architectural seismic movement joints, specified by structural engineers and commercial architects for high-specification projects. Engineered for superior aesthetic continuity across floors, walls, and ceilings.
Equipped with multi-directional movement capability, UL 2079 fire barrier integrations, and styleSEAL waterproofing options, I-EJA protects structural integrity in airports, hospitals, transit terminals, and commercial towers.
Global Engineering & Specification Support
Coordinamos logística y soporte técnico para proyectos de gran escala. Juntas aeroportuarias en Colombia y Chile, sistemas para hospitales en Perú y Argentina, y juntas hidrófugas para el Caribe.
Advanced Structural Safety & Architectural Integration
Architectural expansion joints by styleJOINT® deliver the backbone of structural safety without visual compromise. Engineering the natural movement of buildings to full ADA guidelines guarantees seamless, bump-free rolling accessibility.
Dual Interlocking Sliding Aluminum Plate Floor Joints
The dual interlocking sliding plate assembly delivers a flush, bump-free floor-to-floor transition across major structural movement gaps.
1- Six-way multi-directional seismic movement capability.
2- Pedestrian friendly and fully ADA compliant.
3- Bump-free smooth transition for sensitive hospital gurneys and mobile equipment.
4- Accommodates pneumatic and solid-tire utility cart traffic.
5- Superior wear resistance under rolling loads.
6- Heavy-duty extruded aluminum base frame ensures consistent alignment.
7- Durable fabric-reinforced elastomeric trough provides secondary moisture protection.
8- Structural load analysis stamped by licensed Professional Engineers.
9- Optional UL 2079 tested fire barrier blankets available for 2 to 4-hour ratings.
JOINT SERIES DIHfloor-to-floor| 2"-6"
JOINT SERIES DIH-Cfloor-to-wall| 2"-6"
Recessed Pan Tray Panoramic Joint Covers
The heavy-duty pan tray system combines architectural invisibility with high multi-directional displacement capacity, absorbing vertical shear and seismic drift.
1- Surface Infill Adaptability: Recessed pan accepts tile, marble, granite, or terrazzo.
2- Minimalist Sightlines: Preserves seamless architectural flooring planes.
3- Thermal & Seismic Response: Remains perfectly flush under routine daily thermal movement, elevating smoothly during seismic events to prevent floor damage.
An optimal discrete yet high-capacity movement solution for corporate lobbies and airport terminals.
JOINT SERIES PDSfloor-to-floor | 4"-10"
JOINT SERIES PDSEfloor-to-wall | 3"-12"
JOINT SERIES PDSWwall-to-wall | 3"-12"
Flush Floor Joint Covers with Zero Step Profile
The LASB-NBR series expansion covers integrate full ADA compliance with seismic movement absorption, eliminating tripping hazards in high-traffic corridors.
1- Flush Floor Profile: Smooth, bump-free surface transitions.
2- Barrier-Free ADA Compliance.
3- Accommodates variable floor thicknesses and finishes.
4- High thermal expansion and seismic drift tolerance.
5- Available in architectural aluminum, bronze, brass, and stainless steel finishes.
JOINT SERIES LASDfloor-to-floor| 1"-18"
JOINT SERIES LASTfloor-to-floor| 1"-18"
JOINT SERIES LASTFfloor-to-floor | 1"-8"
JOINT SERIES LASFBfloor-to-floor | 1"-24"
Low-Visibility Architectural Joint Systems
Low-visibility expansion covers feature concealed sightlines that integrate discretely with adjacent architectural floor and wall finishes while maintaining heavy structural load capacity.
1- Minimal visible metal sightline.
2- Heavy-duty internal slide plate.
3- Compatible with tile, carpet, and stone.
4- Clean decorative trim options.
5- Floor-to-floor and floor-to-wall configurations.
6- Smooth wheeled cart transit.
7- Complementary wall and ceiling corner profiles.
JOINT SERIES HSLfloor-to-floor| 2"-6"
JOINT SERIES HSLNfloor-to-wall| 1"-6"
JOINT SERIES VSLwall-to-wall | 1"-12"
Seismic Floor Expansion Joint Systems
Engineered floor joint covers combining high seismic drift capacity, structural durability, and versatile architectural finishes.
1- Centering bar mechanical return system.
2- Wide range of joint opening widths from 25mm to 300mm.
3- Surface-mounted and flush-recessed blockout profiles.
4- Heavy-duty alloy choices: aluminum, architectural bronze, and stainless steel.
5- Adaptable to varied structural gap separations.
JOINT SERIES HDLfloor-to-floor| 1"-6"
JOINT SERIES HDMfloor-to-floor| 1"-12"
JOINT SERIES XPDfloor-to-floor | 1"-2"
JOINT SERIES EEHFXfloor-to-floor | 1"-4"
Classic Architectural Floor Joint Covers
Classic cover systems providing reliable functional protection for standard commercial and institutional expansion gaps.
1- Variable blockout receiver frames.
2- Architectural aluminum structural integrity.
3- Exposed or recessed cover styles.
4- Compatible with standard flooring materials.
5- Matching perimeter wall and baseboard trims.
6- Multi-axis thermal and seismic accommodation.
7- Suitable for new construction slabs or retrofit blockouts.
JOINT SERIES HFXfloor-to-floor| 1"-4"
JOINT SERIES HFXEfloor-to-wall| 1"-4"
JOINT SERIES HFXEMfloor-to-floor floor-to-wall | 1"-4"
JOINT SERIES HFXRfloor-to-floor | 1"-4"
JOINT SERIES HFXREfloor-to-floor | 1"-4"
Heavy-Duty Commercial Floor Joint Systems
Robust floor joint designs engineered for demanding commercial traffic, providing diverse frame styles and high movement thresholds.
1- High-strength alloys engineered for rolling freight carts and utility vehicles.
2- Surface-mounted and blockout installation options.
3- Multi-directional seismic and thermal compensation.
4- Low-profile beveled edges facilitating smooth wheel crossover.
JOINT SERIES HFPfloor-to-floor| 2"-4"
JOINT SERIES X-Ufloor-to-floor| 1"-2"
JOINT SERIES SNfloor-to-floor | 1"-2"
JOINT SERIES ASJfloor-to-floor | 3"-18"
JOINT SERIES HCPfloor-to-floor | 1"-2"
JOINT SERIES SPfloor-to-floor | 1"-18"
Surface-Mounted Joint Systems Without Blockouts
Engineered for fast-track retrofit installations where slab blockouts cannot be mechanically cut into existing concrete.
1- Multi-axis thermal and seismic drift absorption.
2- Shallow beveled edge profiles ensuring ADA wheelchair and cart compliance.
JOINT SERIES FSfloor-to-floor | 1"-3"
JOINT SERIES FSEfloor-to-wall | 1"-3"
JOINT SERIES FSSfloor-to-floor | 1"-3"
JOINT SERIES FSNEfloor-to-wall | 1"-2"
JOINT SERIES FSSTfloor-to-floor | 1"-3"
JOINT SERIES FSSRfloor-to-floor | 1"-3"
JOINT SERIES FDTfloor-to-floor | 1"-12"
Elastoprene Rubber Gasket Seal Systems
Multi-cell continuous rubber expansion seals available in coordinated designer color palettes.
1- Accommodates high expansion, compression, and shear.
2- 100% mechanical fastener-free surface appearance.
3- Heat-weldable directional transitions.
4- ADA compliant smooth pedestrian transition.
5- Continuous rolls for horizontal floor joint runs (ECS model).
6- Low-pressure vertical wall seals (VCS model).
7- UV and abrasion resistant elastomer.
8- Cost-effective and rapid installation.
JOINT SERIES FSWwall-to-wall| 1"-3"
JOINT SERIES FSWLwall-to-corner | 1"-2"
JOINT SERIES FSAwall-to-wall | 1"-3"
JOINT SERIES FSWPwall-to-wall | 1"-2"
JOINT SERIES WPwall-to-wall | 1"-12"
Recessed Flush Floor Seal Assemblies
Flush floor expansion systems engineered for seamless integration with architectural flooring and wall coverings.
1- Self-centering mechanical bar assembly.
2- Broad selection of widths and finishes.
3- Recessed blockout frames.
4- Aircraft-grade aluminum and stainless steel face plates.
5- High multi-axis displacement tolerance.
JOINT SERIES ASCwall-to-wall | 4"-18"
JOINT SERIES ASCLwall-to-corner | 4"-18"
JOINT SERIES ASKwall-to-wall | 1"-12"
JOINT SERIES ASKLwall-to-corner | 1"-12"
JOINT SERIES CRSwall-to-wall | 1"-12"
JOINT SERIES CRSLwall-to-corner | 1"-12"
Pre-Formed Factory-Cured Polyurethane Joint Systems
PPT series pre-formed, factory-cured elastomeric polyurethane systems featuring metallic support plates for restricted-movement expansion gaps.
Molded Seal: ADA compliant textured slip-resistant wear surface.
PPT Nose Sealant: Two-component traffic-grade elastomeric polymer.
Uniform Depth: Flush profile preventing dirt accumulation.
Hardness: Shore A 30±5 for long-term wear resistance.
Applications: Building entrances, stair towers, and pedestrian bridges.
JOINT SERIES KXwall-to-wall| 1"-2"
JOINT SERIES CXceiling-to-ceiling | 1"-2"
JOINT SERIES DXceiling-to-ceiling | 1"-2"
JOINT SERIES VSWwall-to-wall | 2"-5"
JOINT SERIES VSGceiling-to-ceiling | 2"-5"
Flush Wall & Soffit Flexible Joint Systems
Architectural extruded frames with Elastoprene® designer-color seals delivering wide movement ranges without visual compromise.
1- Seals available in coordinated interior decor colors.
2- Multiple profiles for flat walls and corner junctions.
3- Surface installation on drywall or suspended ceilings.
4- Exterior weather-resistant masonry applications.
5- Mud-in drywall frames for minimal sightlines.
6- UV and temperature resistant.
7- Continuous seamless runs.
JOINT SERIES FX-Kwall-to-wall | 1"-8"
JOINT SERIES FX-Lwall-to-corner | 1"-8"
JOINT SERIES EX-Kwall-to-wall | 1"-4"
JOINT SERIES EX-Lwall-to-corner | 1"-4"
JOINT SERIES X-Mwall-to-wall | 1"-3"
JOINT SERIES X-Nwall-to-corner | 1"-2"
Metal Wall Seismic Joint Covers
Engineered metal wall expansion covers offering high seismic movement capacity in diverse architectural finishes.
1- Centering bar seismic tracking mechanism.
2- Wall and ceiling corner transitions.
3- Clear anodized, bronze anodized, or Kynar 500 / Hylar 5000 coatings (72 colors).
JOINT SERIES VSS-Ewall-to-wall 2"-6"
JOINT SERIES VSS-Iwall-to-wall | 2"-6"
JOINT SERIES VSS-E-700wall-to-wall | 7"-24"
JOINT SERIES VSS-I-700wall-to-wall | 7"-24"
Architectural Metal Wall & Ceiling Joint Systems
Extruded aluminum wall and soffit covers featuring diverse mounting configurations.
1- Materials: Extruded aluminum (standard), architectural brass, or stainless steel.
2- Finishes: Clear anodized, architectural bronze, or custom RAL coatings.
3- Seismic centering bars maintaining alignment during structural drift.
4- Integrated internal vapor and acoustic barrier seals.
JOINT SERIES ESSwall-to-wall | 1"-24"
Vertical Airtight Seismic Joint Systems
Vertical airtight seismic seals featuring snap-lock engagement into dual extruded aluminum perimeter retainers.
1- Zero exposed metal or fasteners on the finished face.
2- Engineered for multi-directional seismic displacement.
3- Gaskets available in standard and custom architectural colors.
4- Highly resistant to UV radiation, ozone, chemicals, and extreme thermal swings.
5- Heat-weldable splice transitions.
JOINT SERIES SIFwall-to-wall | .25"-12"
Silicone & Polyurethane Seismic Seal Assemblies
Factory-bonded silicone expansion seals attached to a high-density rectangular polyurethane substrate.
1- Conforms to irregular structural gaps, preventing water intrusion.
2- 100% airtight, watertight, and dustproof.
3- Non-flammable silicone resistant to UV and ozone exposure.
4- Rapid installation requiring no mechanical floor anchors.
5- Supplied in continuous modular lengths.
JOINT SERIES RXHazotea | 4"-10"
JOINT SERIES RXRazotea | 2"-10"
JOINT SERIES WJKazoteas | 1"-12"
Impregnated Foam Seismic Joint Systems
Factory-applied architectural silicone seal integrated with high-density microcellular polyurethane foam impregnated with water-repellent polymer.
1- +/- 50% seismic movement capacity with near-zero tensile stress on concrete edges.
2- Conforms to irregular concrete joint substrates.
3- Permanently elastic and puncture-resistant.
4- Watertight, airtight, and acoustic sound barrier down to -39°F.
5- Integrated thermal, vapor, and dust barrier.
JOINT SERIES ERPazotea | 4"-10"
JOINT SERIES ERJazotea | 2"-10"
Aluminum Roof & Parapet Expansion Joint Systems
Architectural aluminum roof expansion joint covers engineered for flat and sloped roofs under severe thermal and seismic cycles.
1- Aluminum, brass, and stainless steel configurations.
2- Anodized or Kynar 500 / Hylar 5000 high-performance exterior coatings.
3- Seismic centering mechanisms accommodating multi-axis roof deck movement.
4- Reinforced waterproof membrane gutters divert moisture away from building envelope.
JOINT SERIES RXHazotea | 4"-10"
JOINT SERIES RXRazotea | 2"-10"
JOINT SERIES WJKazoteas | 1"-12"
Flexible Rubber Bellows Roof Expansion Covers
Flexible EPDM and neoprene bellows systems accommodating multi-directional seismic and thermal movements across roofing assemblies.
1- High resistance to UV exposure, standing water, and thermal extremes.
2- Compatible with single-ply, modified bitumen, and built-up roofing membranes.
3- Watertight vulcanized corner and transition fittings.
JOINT SERIES ERPazotea | 4"-10"
JOINT SERIES ERJazotea | 2"-10"
Frequently Asked Questions: styleJOINTS EJA
Where are styleJOINT I-EJA seismic joint covers typically specified?
What types of structural movements do I-EJA joints absorb?
What is the typical manufacturing and delivery timeframe for I-EJA profiles?
Are fire-rated barrier options available for I-EJA systems?
Technical Documentation
Product documentation · Check reference and version
styleJOINTS EJA Technical Support
styleJOINT I-EJA: high-performance architectural seismic movement joint profiles for floors, walls, and ceilings accommodating multidirectional thermal and seismic drift.
Design Advantages & Performance of styleJOINTS EJA
Select styleJOINTS EJA according to the intended use, geometry and installation conditions of the project. Define the complete configuration, junctions and finishes to assess its suitability for the space. Consult the documentation for the selected reference when specifying performance.
Contact the Stylewall team to discuss the configuration and documentation available for each reference. Share drawings, dimensions and use requirements to prepare a technical proposal for the project.
Documentation and project requirements
Assess acoustic, movement, fire and safety requirements according to the product and its application. Check that each technical sheet or report corresponds to the configuration, materials and installation conditions being specified.
To assess environmental criteria, request the material, finish and maintenance information applicable to the selected reference. Relate the scope of each manufacturer declaration to the product and the specific project requirements.
