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Next-Generation
Insulated Structural
Exterior Sheathing

One panel.
Multiple performance layers.
Fewer risks.

Talk to Our Team

Next-Generation Insulated Structural Exterior Sheathing

KRATOS™ MX7 is a dual-layer structural exterior sheathing that combines a mineral magnesium oxide (MgO) board with integrated EPS insulation.It delivers structural strength, fire resistance, thermal performance, and moisture control in a single high-performance panel—reducing complexity, lowering costs, and accelerating installation compared to traditional wall assemblies.
One panel. Multiple performance layers. Fewer risks.
Talk to an expert

Not another system. A smarter upgrade

MX7, originally designed exclusively for the KRATOS system, is now available as a stand-alone
product for applications onto wood frame, block and concrete wall buildings. If you can’t move to
KRATOS, at least you can have our best-in-class exterior sheathing for projects that demand
enhanced fire protection, durability, and long-term performance.

MX7 Consolidates: MgO Structural Board + EPS Thermal Core

Fewer layers · fewer trades · fewer failure points

Sample Photo

MgO Structural Board

• Non-combustible inorganic mineral composition
• Provides impact resistance, structural shear, racking resistance, and fastener pull-through and pull-out
• Fire-rated performance suitable for 1- and 2- hour assemblies
• Moisture-resistant, mold-resistant, rot-resistant

EPS Thermal Core

• Continuous insulation creates a true thermal break
• Reduces thermal bridging through steel, concrete, or wood framing
• Acts as an air and moisture barrier
• Adjustable R-values to meet climate requirements
• Treated to protect against termites and other pests

Exterior Cladding

Direct-Applied Finish Systems For Exterior Protection And Aesthetics

Spray Foam Insulation - Kratos

Superior thermal + moisture control

Thermal / Acoustic Insulation - Kratos

Flexible, climate-tunable

Light Gauge Steel Framing - Kratos

Strongest, most resilient structure

Pre-Punched MEP Service Holes - Kratos

Faster MEP trades · fewer errors

Explore the system — hover over the image to learn more

MX7

MgO Structural Board

• Non-combustible inorganic mineral composition
• Provides impact resistance, structural shear, racking resistance, and fastener pull-through and pull-out
• Fire-rated performance suitable for 1- and 2- hour assemblies
• Moisture-resistant, mold-resistant, rot-resistant

1/2 Inch

5/8 Inch

3/4 Inch

EPS Thermal Core

• Continuous insulation creates a true thermal break
• Reduces thermal bridging through steel, concrete, or wood framing
• Acts as an air and moisture barrier
• Adjustable R-values to meet climate requirements
• Treated to protect against termites and other pests

1/2 Inch

1
Inch

1 1/2 Inch

Why MX7 Performs Better

Designed for Performance Build for Results

Fire
Resistance

  • Reduce build time with fewer steps and integrated components.

Durability

Durability

  • Resistant to rot, mold, mildew and termites/insects. Built for long-term durability and resilience.

Structural Performance

Structural Performance

  • High shear strength and fastener pullout/through resistance.

Sustainability

Sustainability

  • Low-carbon MgO panel with reduced material usage.

Efficiency

  • Faster installation for the builder and lower total cost of operation for the owner/operator.

Lower Cost to Build

  • By integrating a continuous insulation (CI) layer as a thermal break, with a best-in-class sheathing, MX7 reduces installation time, labor, and long-term maintenance.

Replace Poor Value with High Performance

MX7 consolidates multiple wall components into one integrated product, reducing labor costs, waste and maintenance:

Fewer layers. Fewer trades. Fewer failure points. Better Results.

Fewer layers. Fewer trades.
Fewer failure points.
Better Results.

Structural Sheathing

Fire Protection

Continuous Insulation

Air & Water Barrier

Direct Apply Cladding

Ready to see how MX7 performs in real conditions?

Request a Sample
steel vs. wood

Why builders are moving away from wood

Wood

MX7

WOOD

  • fire damage

Burns. Collapses. Code risk.

Combustible lumber feeds structural fires.

MX7

  • non-combustible

Holds structure under heat.

Steel framing meets fire-rated assembly requirements.

WOOD

  • Termite Damage

Eaten. Hollowed. Compromised.

Termites and rodents degrade wood from within.

MX7

  • pest-proof

Inorganic. Nothing to eat.

Steel is immune to termites, rodents, and insects.

WOOD

  • mold risk

Absorbs. Warps. Molds.

Water damage and mildew compound over time.

MX7

  • moisture-proof

Rejects water. No mold or mildew.

Steel + closed-cell foam create a full air/water barrier.

WOOD

  • inconsistent

Cracks. Splits. Warps.

Every board varies. Every wall pays the price.

MX7

  • precisely-engineered

1/16" tolerance. Every panel.

CNC-fabricated for consistency across every build.

Category

Traditional Wood Sheating (OSB/Plywood/Zip)

KRATOS™ mx7

Combustibility

  • Highly combustible
  • Non-combustible mineral sheathing

Fire Rating

  • No inherent fire rating
  • Suitable for 1- and 2-hour fire-rated assemblies

Moisture Resistance

  • Absorbs water, swells, delaminates
  • Moisture-proof, inorganic, no swelling

Mold / Mildew

  • Supports mold and fungus
  • Fully inorganic — mold-resistant

Termites / Insects

  • Vulnerable
  • Insect and termite resistant

Durability

  • Degrades over time
  • Long-term stability, no rot

Impact Resistance

  • Low to moderate
  • High-impact exterior-grade surface

Air & Water Barrier

  • Requires additional wraps
  • Integrated impermeability — no need for extra building wrap

Thermal Bridging

  • No thermal break
  • Integrated Continuous Insulation layer (Thermal Break)

Thermal Conductivity

  • K-value: ~0.80 Btu·in/hr·ft²·°F
  • K-value: 0.43 Btu·in/hr·ft²·°F

Resistance To Heat Flow

  • R-value/Inch @ ~1.25
  • R-value/Inch @ ~4 to 5

Structural Capacity

  • High
  • High

Environmental Profile

  • High carbon footprint (wood, adhesives, resins)
  • Low-carbon footprint - Magnesium mineral panel

Longevity

  • Limited, dependent on maintenance
  • Long service life — inorganic materials

Installation

  • Multiple layers required
  • Single high-performance panel replaces multiple layers

Cost Over Time

  • Higher maintenance + replacements
  • Lower TCO (Total Cost of Ownership)
See the Difference in Your Project
Download MX7 Flyer

Make the Switch to MX7 Today!

Request a Sample
Talk to Our Team

MX7 Consolidates:

  • Structural sheathing
  • Fire protection
  • Continuous insulation
  • Air & water barriers

MgO Structural Board - MX7

Gypsum

Minimal (little protection against Fire/Abuse/Mold/Mildew)

Fiberglass Matt Board

Better (some protection, requires skim coating)

MGO

Best (Fire/Abuse/Mold/Mildew protection, low maintenance)

Q-Rock

Best (Fire/Acoustic/Abuse/Mold/Mildew protection, low maintenance)

MgO Structural Board - MX7

Non-combustible mineral composition with structural shear and impact resistance, high fastener pull-through strength, adjustable thickness for 1–2 hour fire-rated assemblies, and high resistance to moisture, mold, mildew, and rot.

EPS Thermal Core - MX7

Integrated structural sheathing with continuous insulation. Eliminates thermal bridging while adding R-value. Pre-installed in the factory, guaranteeing fit and function in the field with reduced waste and a simplified installation process.

MX7 Structural Sheathing

Integrated structural sheathing with continuous insulation. Eliminates thermal bridging while adding R-value. Pre-installed in the factory, guaranteeing fit and function in the field with reduced waste and a simplified installation process.
Learn More

Exterior Cladding

Direct-applied exterior finish that minimizes layers and simplifies construction. 

Spray Foam Insulation

Closed-cell insulation providing high thermal resistance and air sealing. 

Thermal / Acoustic Insulation

Optional insulation layer for added comfort and sound control. 

Light Gauge Steel Framing

Precision-engineered steel structure for durability and consistency. 

Pre-Punched MEP Service Holes

Factory-designed openings for mechanical, electrical, and plumbing systems.