Articles · 2026-01-27
How the MagnaTrack Self-Correcting Screen System Works
Inside the patented magnetic track that resets itself — why MagnaTrack screens have no zippers to tear, no cables to re-tension, and 98 percent fewer service calls.
The problem every retractable screen must solve
A motorized retractable screen is a piece of fabric up to thirty feet wide that has to stay drum-tight across an opening, survive gusts and bumps, and still roll away into a housing on command. The engineering challenge is edge retention: how do you hold the fabric's vertical edges in the side tracks firmly enough to resist wind, but gently enough to allow smooth travel?
The industry's traditional answers each carry a failure mode. Zipper-edge systems sew a zipper tooth strip to the fabric edge; when wind or an impact pops the zipper out of its track, the teeth can tear, and the screen needs a service visit. Cable-tensioned systems rely on cables that stretch over time and require periodic re-tensioning. Both approaches work — until they need a technician.
Magnets that put the screen back themselves
MagnaTrack's answer, protected by US patents 11,421,474 and 9,719,292, is magnetic self-tensioning. The fabric edge carries a retention profile held in the track magnetically rather than by interlocking teeth. When a gust, a dog, or an errant soccer ball deflects the screen, the edge can release without damage — and here is the trick — the magnets guide it back into position automatically as the screen cycles. No torn zipper, no stretched cable, no service call.
That one property is why Progressive Screens, MagnaTrack's Sarasota-based manufacturer, reports 98 percent fewer service calls than conventional screen systems. It is also what lets MagnaTrack handle imperfect openings: because the retention is magnetic rather than a fixed mechanical interlock, the system tolerates floors that are out of level by as much as four inches — common on older patios across Northern Virginia — while keeping a clean seal along the bottom bar.
The rest of the system: motors, controls, housings
The fabric rolls on a tube driven by a tubular motor concealed in the housing. Motor options are matched to the job: Gaposa motors with obstacle detection stop and reverse if the bottom bar meets resistance; Sense tubular motors add wind-gust stop-and-reverse behavior; and the SHSM high-speed option turns at 90 RPM for openings where deployment speed matters. Housings and tracks come in seven standard finishes from White to Night Sky, plus custom RAL color-matching for HOA-sensitive neighborhoods.
Control runs from a Sidekick Gen 2 handheld or flush wall mount up to the Bond Home app, which manages up to 32 screens, and full smart-home integration with Control4, ELAN, RTI, URC, Savant, Crestron, Lutron, Amazon Alexa, Google Assistant, SmartThings, and Josh.ai. Wind and rain sensors can automate retraction entirely. The same platform scales from a single window screen to a 30-by-20-foot lanai opening — and, with Defender fabric, to certified storm protection.
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