WITHIN-WALL™ CAVITY (WWC™)

A PortalWall® Construct

Optimal Humidity. Zero Condensation. Mold Risk Eliminated.

Finally Possible.

Bonded Diaphragm™ Architecture

PortalWall® introduced a bonded architectural fascia panel that acts as a structural diaphragm when adhesively joined to an insulated substrate.

(See structural diaphragm disclosure and adhesive bonding configuration.)

The architectural fascia panel — bonded with a precise volume of non-conducting adhesive — transforms the insulated panel into a structural insulated diaphragm assembly.

This bonded diaphragm plane is:

• Load-spread

• Structurally coupled

• Thermally relevant

• Positioned adjacent to the interior dry-side zone

As disclosed in Fig. 9B, the dry-side reinforcement includes cut-out sections designed to assist distribution of heat which radiates through a finished sheet rock wall assembly.

The diaphragm is not decorative.

It is an engineered plane.

Because the diaphragm is thermally coupled to the interior cavity zone, it can function as:

• A passive thermal stabilizer

• A radiant surface

• A heat sink

• Or an actively conditioned plane when paired with project-specific systems

The patent establishes the bonded diaphragm architecture.

Activation method is an engineering choice.

Why This Matters

Conventional exterior building envelope enclosures rely on continuous metal framing that increases thermal exchange and creates hidden condensation risk inside opaque wall cavities.

As disclosed in the patent:

• Structural metal framing increases risk of interior water vapor condensing on hidden surfaces.

• Insulated cavities can trap air and limit convection.

• First condensing surfaces occur in concealed zones.

• Hidden condensation leads to mold risk.

For decades, this meant one thing:

Buildings could not safely include controlled humidification.

The wall could not tolerate it.

PortalWall® was designed to change that.

What It Is

The Within-Wall™ Cavity (WWC™) is a governed dry-side cavity formed between:

• The bonded structural diaphragm plane

• The insulated panel substrate

• And the interior finished assembly

As disclosed, the dry-side structural reinforcement includes openings that allow air to flow substantially parallel to the insulated panel, assisting distribution of heat radiating through the finished wall assembly.

This cavity:

• Promotes controlled convection

• Supports radiant heat distribution

• Reduces first-surface condensation risk

• Stabilizes interior surface temperatures

The wall itself becomes a managed environment.

Not stagnant.

Not concealed.

Not thermally unpredictable.

Governed.