Architectural Expansion Joints

Aesthetics, innovation, and durability are the hallmark of MM's line of floor, wall, ceiling, and roof joint cover systems. Engineered systems include features that are ADA compliant, fire-rated, no-bump, and heavy-load designs capable of thermal, seismic, and wind-sway movement.

Interior Floor

Interior Floor expansion joints provide smooth, impact-free transitions between floor surfaces while accommodating thermal and seismic movement. Built for durability and safety, they handle heavy traffic and protect structures in high-use, climate-controlled spaces like hospitals, airports, and convention centers.

Flush No-Bump Floor (Aluminum Covers)

Flush No-Bump Floor (Aluminum Covers) are ideal for bump sensitive applications. Variable recesses accommodate a variety of floor finishes: carpet, tile, terrazzo, stone pavers, etc. No Bump Systems remain flush only during thermal movement cycles (generally in interior, climate controlled environments). During seismic or other extreme movements, No Bump Systems will not remain flush to adjacent floor surfaces. Available in aluminum (standard), brass and stainless-steel covers.

Flushline No-Bump Floor (Rubber Seals)

Flushline No-Bump Floor (Rubber Seals) systems cover interior floor expansion joint openings delivering a clean, flush, and attractive finish. Designed for pedestrian traffic, they offer easy installation, multiple color options, and compatibility with varied floor heights for seamless integration.

Hidden Sightline Floor

Hidden Sightline Floor systems provide smooth, nearly invisible transitions across interior expansion joints while accommodating seismic, thermal, and multi-directional movement. ADA-compliant and architecturally versatile, they integrate with surrounding finishes, support heavy loads, and offer optional moisture/fire protection for high-traffic, climate-controlled environments like hospitals, airports, and convention centers.

Seismic Floor

Seismic Floor expansion joints deliver smooth, impact-free transitions while accommodating thermal changes, vertical deflection, and multi-directional movement. Built for durability and safety, they handle heavy rolling loads, protect structural integrity, and offer optional moisture and fire barriers to ensure long-lasting performance under extreme-duty and high-load conditions.

Heavy Duty Floor

Heavy Duty Floor expansion joints provide smooth, no-bump transitions while handling extreme rolling loads and multi-directional seismic movement. With robust aluminum frames, slip-resistant covers, and optional moisture/fire barriers, they ensure durability, structural integrity, and long-term performance under demanding load and movement conditions.

Floating Floor Plate

Surface Mount Floor

Surface Mount Floor expansion joints provide safe, slip-resistant transitions for joints without blockouts, accommodating vertical offsets and multi-directional movement. Designed for high pedestrian traffic, they feature interlocking covers, anti-vibration dampers, and optional moisture barrier and fire barriers for durability, safety, and ease of retrofit or new construction.

Waterproof Rubber & Foam Floor Seals

Waterproof Rubber & Foam Floor Seals provide durable, watertight protection for expansion joints, which accommodates thermal, seismic, and vertical movement. Engineered from high-performance Elastoprene Rubber or Ethylene-vinyl acetate (EVA) foam, they resist UV-rays, chemicals, and extreme temperatures, offering long-term reliability with ADA-compliant profiles and optional fire-rated protection.

Extra Wide Seismic Solutions

Interior Wall & Ceiling

Interior Wall & Ceiling Covers provide a refined solution for concealing expansion joints, ensuring a smooth and uninterrupted surface within architectural spaces. Specifically designed for indoor applications, they blend durability with attractive finishes to complement surrounding design elements. Offering easy installation and low maintenance, these covers enhance visual harmony while contributing to the overall structural integrity. Ideal for commercial, institutional, and residential projects, they support both aesthetic goals and functional performance in interior environments.

Metal Wall & Ceiling Covers

Metal Wall & Ceiling Covers provide a clean, crisp sightline while concealing expansion joint openings. Designed for durability and easy installation, they feature quality finishes, require minimal maintenance, and deliver long-lasting performance for both functional and aesthetic applications in architectural spaces.

Seismic Wall & Ceiling Covers

Flushline Wall & Ceiling Rubber Seals

Flush Fluted Vertical Rubber Seals

Flush Fluted Vertical Rubber Seals provide a clean, streamlined appearance while sealing expansion joint openings in walls and ceilings. Designed for durability and flexibility, they feature color options, easy installation, and compatibility with fire-rated systems, ensuring long-term performance in both functional and aesthetic applications.

Accordion Rubber Seals

Accordion Rubber Seals offer a flexible, durable solution for concealing expansion joint openings in walls and ceilings. Made with high-quality PVC and aluminum framing, they ensure a clean, attractive sightline and easy installation. Low maintenance design accommodates building movement for long-lasting performance.

Exterior Wall

Exterior Metal Wall Covers

Waterproof Vertical Foam Seals

Waterproof Rubber Seals

Exterior Roof

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Exterior Aluminum Roof Covers

Exterior Waterproof Rubber & Foam Bellows

Extra Wide Seismic Solutions

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