YONATAN WORKED ON 100'S OF PROJECTS before Portalwall™ WAS IMAGINED - 39 OF THEM LISTED BELOW

 PortalWall®

The part of the building academia overlooked — the space between surfaces.  Water Vapor Aloft™ is what happens when the enclosure performs as intended:

vapor remains suspended, latent energy is harvested, people feel well, and energy efficiency reaches its extreme.

I took the most basic AAMA metric — the Condensation Resistance Factor (CRF) — and built an entire new envelope science.

PortalWall® Thoughtful Design 

By Yonatan Zvi Margalit