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A Better Way to Control Heat Gain & Sun Glare
Yonatan Zvi Margalit envisioned a smarter solution to managing heat gain and sun glare. Drawing on his background in facade innovation, he designed a system using specialized film—an idea brought to life through a working mock-up. This video captures the concept in action, showcasing a practical and elegant approach to daylight control.

But what you see is only the beginning. His method goes far beyond glare reduction—it reimagines the entire build process, streamlining construction, skipping unnecessary steps, and introducing efficiencies that simply wouldn’t exist without thinking far outside the box. The result? A breakthrough in both performance and practicality.

This technology is the exclusive property of Yonatan Zvi Margalit, protected by intellectual property rights and available only through formal licensing - INTELLECTUAL PROPERTY THEFT IS A SERIOUS CRIME - www.jointhejust.com


DESIGNS ARE COPYRIGHT PROTECTED


WE OUTSULATE™ CONTINUOUSLY


Copyright © 2025 

PORTALWALL ® + PARRALELS ™


PortalSteel™, Active-Wall™ & PORTALWALL® ZUZALOGIC™, ZUZATHERM™, DELUGEWALL™, FREED-AIR™, ACTIVE-PORTALS™, TESTALOGICA™, TESTAWALL™, ACTIVECOAT™, OUTSULATE™
all trading marks, taglines, slogans, images, and written content are the intellectual property of Yonatan Zvi Margalit and may not be reproduced or reused without express permission.


Let’s Design + Comply + Perform™ Together — Copyright Protected.
Patents filed, pending, and granted.

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