The Science of Well-Being: WVA™ (Water Vapor Aloft™)
The National Human Activity Pattern Survey (NHAPS) shows people spend 86.9% of their lives indoors. Getting the enclosure right is therefore not optional — it’s essential.
WVA™ (Water Vapor Aloft™) is the science at the heart of PortalWall®.
It proves that when vapor remains aloft in occupied spaces, the enclosure is performing exactly as intended: healthy, efficient, resilient.
- Signals airtight continuity — eliminating cold spots, thermal bridges, and hidden condensation.
- Preserves comfort and latent energy that conventional enclosures routinely waste.
- Maintains optimal relative humidity (40–60% RH) — the proven range for respiratory health, immune strength, and productivity — without risk of condensation or mold, by preventing vapor from feeding hidden rivers between Pascal pressure zones.
- Reduces mold and sick building syndrome at the source, keeping interiors safe and stable.
- Secures intellectual property integrity — first-to-file performance authored and owned exclusively by Yonatan Zvi Margalit.
In one mark, WVA™ communicates wellness and efficiency. Not theory but a measurable signal, it proves the enclosure works in harmony with nature — preserving water vapor in the breathing zone where health and comfort belong.
Delivering Energy Efficiency as the First Fuel
The International Energy Agency (IEA) calls energy efficiency the world’s “first fuel” — the resource that reduces demand before new supply is needed.
PortalWall® embodies this principle by transforming enclosure design into an active energy system:
- Simple — one coherent system, eliminating unnecessary layers.
- Reproducible — delivering consistent results across climates and building types.
- Resilient — no moving parts to fail, no fragile membranes to replace.
- Scalable — efficiency remains constant from residential to mid-rise to high-rise projects.
Together, these qualities make efficiency the foundation of global well-being and climate responsibility.
Source: IEA Chief — Energy efficiency is the world’s “first fuel” (World Economic Forum)
PortalWall® proves that efficiency is not just an energy strategy — it is a pathway to lasting human wellness and first-fuel efficiency.
PortalWall® — Singularly At the intersection of well-being and first-fuel efficiency.
PortalWall® + Open-Wall™
FREED™ AIR, prove that efficiency is not just an energy strategy — it is a pathway to lasting human wellness and first-fuel efficiency.
IEA chief: Energy efficiency is the world's 'first fuel' | World Economic Forum
© Yonatan Zvi Margalit
Copyright Protected
MC²™: Nested Simplicity — Two Major Components, One Shared Logic
MC²™ is memorable because it honors the great thinkers who proved that less can be more.
PortalWall® is built on MC²™ — Two Major Components that define its simplicity and global scalability:
- Fortified Opaque Infill™
- Water-Draining Spandrel Assembly (WDSA™)
Each system is reduced to just two essential parts:
- Fortified Opaque Infill™ = Architectural Fascia + Composite Wall Panel
- WDSA™ = Structural Spandrel Beam + Draining Carrier
One of the breakthroughs lies in fusing two industries that had always been separate — the precision of metal-framed curtain walling, where verticals tie everything together, and the simplicity of the insulated-panel world, where no vertical framing is needed.
By merging these disciplines, PortalWall® creates a unified horizontal logic where the same sill receptor and head beam serve both assemblies — delivering structure, drainage, and alignment in one nested system.
This nesting forms a continuous, thermally superior envelope that improves performance so significantly it enables Water Vapor Aloft™
(WVA™) and fulfills the IEA’s call for Energy Efficiency as the First Fuel.
It’s not about removing parts; it’s about improving while reducing—achieving greater efficiency, lighter structure, and lower embodied carbon all at once.
About the WVA™ Logo
The WVA™ Logo — DNA of PortalWall®
Water Vapor Aloft™ (WVA™)
The Science of Well-Being and Thermal Efficiency
The WVA™ (Water Vapor Aloft™) logo embodies the DNA of PortalWall®. The triangle represents the stability of the enclosure. Within it are the essential elements of air — nitrogen (N₂), oxygen (O₂), and water vapor (H₂O). The upward arrow signifies vapor rising aloft: a visual symbol of health, energy, and resilience.
Water Vapor Aloft™
When vapor remains aloft in occupied spaces, it signals something profound: the enclosure is airtight, continuous, and free of thermal-bridging cold spots. In such conditions, vapor has no hidden surface to collapse into condensation. Instead, it floats where it belongs — in the living zone — proving the wall assembly is performing as intended: healthy, efficient, and resilient.
That signal also means latent energy stored in vapor is preserved, comfort is maintained, and health potential is optimized. In one compact mark, WVA™ communicates the entire Water Vapor Aloft™ logic — a patent-protected measure of performance, a symbol of stability, and a defining feature of the PortalWall® system.
Teaching the Physics Behind WVA™
Pascal Rivers™ & Pascal-Logic™
To understand WVA™, two guiding concepts explain the physics at play:
- Pascal Rivers™— think of a watermelon seed squeezed between your fingers. Slight pressure makes it shoot along the surfaces of the opposing fingers, escaping through the path of least resistance.
In the same way, water vapor under pressure will find pathways between zones. In conventional walls, these “rivers” of vapor escape into hidden cavities, collapse into condensation, and feed mold. PortalWall® stops these rivers from forming by keeping vapor aloft in the breathing zone.
- Pascal-Logic™—By applying a slight, continuous positive pressure — just a few Pascals above ambient pressure — PortalWall® employs Pascal-Logic™ to stabilize air inside the occupied space. This gentle balance keeps vapor aloft, prevents collapse into hidden cavities, and ensures conditioned air circulates smoothly, consuming less energy while actively supporting occupant health.
Together, Pascal Rivers™ and Pascal-Logic™ transform natural physics into measurable performance — holding vapor aloft, preserving latent energy, and making comfort predictable, repeatable, and resilient.
The PortalWall® Difference
Where conventional walls drained energy and health away, PortalWall® restores them. Through carefully layered materials and a pressurized enclosure, thermal bridging is eliminated, cold spots vanish, and vapor has no place to collapse. Guided by Pascal-Logic™, the system sustains optimal indoor humidity, stabilizes temperature with less energy, and delivers a continuous stream of fresh, conditioned air.
The result: a building enclosure that heals rather than harms — proving that well-being and thermal efficiency can be one and the same.
© Yonatan Zvi Margalit — Copyright Protected
PRIOR - State of the Art Complexity & Energy Transfer Paths - Designed-In
In the time it takes others to assemble metal framing, install thermal modules and apply metal back pans, we can complete multiple PortalWall® FORTified Opaque INfill™ panels — because our design eliminates all of those separate parts entirely.
© Yonatan Zvi Margalit Copyright Protected
Complexity Eliminated
Energy Transfer Paths — ELIMINATED
PortalWall® FORTified Opaque INfill™ WDSA™
NO VERTICAL FRAMING REQUIRED
Just two main parts:
PATENTED
© Yonatan Zvi Margalit Copyright Protected
PortalWall® - CFD ANALYSIS INCOMING
DRY SIDE STRUCTURAL REINFORCEMENT & FREED™ AIR ALWAYS KEEPS SPACE DRY
PERFORMING AS INTENDED, AS DEPICTED IN MY GRANTED PATENT - FIGURE 9B
NO MODIFICATIONS, DRY SIDE
NO FINISHING IS REQUIRED
PERFORMS AS INTENDED
© Yonatan Zvi Margalit Copyright Protected
PortalWall® - CFD ANALYSIS INCOMING
DRY SIDE STRUCTURAL REINFORCEMENT & FREED™ Air
ALWAYS KEEPS SPACE DRY
PERFORMING AS INTENDED, AS DEPICTED IN MY GRANTED PATENT - FIGURE 9B
THE LOSS OF PRESSURE IS MINIMAL
EXCITED TO SHOW THE WORLD WHAT WE CAN DO
A NEAR FUTURE ROBUST MARKET DEPLOYEMENT
© Yonatan Zvi Margalit Copyright Protected
July 25, 2025 – THERM Analysis Summary
WVA™ communicates wellness and efficiency. Not theory, but a measurable signal: it proves the enclosure works in harmony with nature — preserving water vapor in the breathing zone where health and comfort belong.
A full thermal analysis conducted with LBNL’s industry-standard THERM software confirmed that the PortalWall® assembly exhibits zero condensation risk under design conditions.
Even at outdoor temperatures as low as 0°F, interior surface temperatures remain well above the dew point — ensuring dry, mold-resistant performance.
This superior result is driven by the system’s underlying thermal logic:
- Flat-sheet diaphragm — replaces conventional vertical framing, absorbing and distributing energy uniformly.
- No vertical framing members — eliminating weak points typical of conventional façades.
- Continuous Outsulate™ capability — the flat diaphragm creates a robust plane for uninterrupted exterior insulation.
- Integrated heat sink and insulation layers — strategically placed to balance energy and moisture.
The result: a high-performance enclosure that manages energy and moisture with exceptional reliability — and provides visible proof that wellness and efficiency can coexist in one wall system.
PortalWall® was lab tested before it was conceived, built upon the proven performance of a Kingspan QuadCore® 4-inch-deep insulated panel—but improved upon, a panel with published thermal and structural data. From this strong foundation, the system was continuously improved and validated.
The true breakthrough lies in the patented enhancements described in U.S. Patent No. 10,329,758 B2—my first granted patent. These innovations structurally reinforce the panel without compromising its core integrity.
In fact, the design is so precisely engineered that the original manufacturer's warranty remains fully intact and carries forward with the PortalWall® system.
No Accommodations. No compromise. Just improvement.
NYCHA MY LESSONS LEARNED
https://www.linkedin.com/pulse/why-me-portalwall-yonatan-margalit-kfaye
PortalWall® + VIG, The next level
https://www.linkedin.com/pulse/vacuum-insulated-glass-8-sealy-drive-yonatan-margalit-aul6e
PortalWall® and WVA™: Turning Building Envelopes into Health Engines
https://www.linkedin.com/pulse/wva-science-behind-water-vapor-aloft-yonatan-margalit-gijte
WVA™ WATER VAPOR ALOFT EXPLAINED GRAPHICALLY
PORTALWALL FORTIFIED OPAQUE INFILL™
https://www.linkedin.com/pulse/portalwall-opaque-infill-yonatan-margalit-yxpye
WE LIVE IN SILOS & MY SOLUTION SHARED WITH NYSERDA IN DECEMBER 2019
https://www.linkedin.com/pulse/nyserda-portalwall-pon-3519pdf-yonatan-margalit-idpwe
When Efficiency Without Airflow Fails & How PortalWall® Improves
WVA™ WATER VAPOR ALOFT & THE WHITE BLOOD CELL ANALOGY
https://www.linkedin.com/pulse/wva-concept-water-vapor-aloft-yonatan-margalit-w7iue
MY HISTROY
https://www.linkedin.com/pulse/my-journey-industry-began-1984-yonatan-margalit-qi5pc
WHY WE BUILD THE WALL
PortalWall® Fortified Opaque INfill™
PH & PortalWall®
PortalWall®: Passive House Performance, Delivered Consistently
PortalWall® Is the critical layer Passive House often overlooks—the dynamic, structural, performance-enhancing core that ties everything together.
Designed by a practical engineering mind with a holistic view, cost careful, PortalWall® solves what others neglect:
- The opaque water-draining spandrel assembly
- The airflow logic that avoids mold and stagnation
Passive House is a target. PortalWall® is the only path to massive deployement without Value Engineering Risk.
It doesn’t just comply—it improves, integrates, and elevates.
So next time you hear “Passive House,” remember:
PortalWall® is what makes it real.
Better yet, we can visit you.
Yonatan Zvi Margalit is the Exclusive Global Licensor
Active-Wall™ & Portalwall® IP, Inc., A New York State Corporation Opened and Wholly Owned by Yonatan Zvi Margalit.
Corporation Scope: Manage Licensees, Collect Licensing Fees,
Procure & Resell Key Components to Licensees, as Stipulated in the License Documents.
GRASS ROOTS approach to deploying Active-Wall™ & Portalwall® We can meet you anytime in the New York Metropolitan Area.
Today | By Appointment |
