Allianz Field

Saint Paul, MN

The official stadium of Major League Soccer’s Minnesota United FC.

93,540 sqft
Of PTFE Membrane Facade

Market

Stadiums

Architect

Populous

Building Contractor

Mortenson

Structural Engineer

Walter P Moore

Completion

2019

2019 Award of Excellence: Tensile Structures, More Than 2,322 Square Meters
IFAI International Achievement Awards

2019 Outstanding Achievement: Facades
IFAI International Achievement Awards

ETS Scope

Engineering, Fabrication, Installation

Surface Area

93,540 sq ft

Material

PTFE Membrane

Structure

Tensile Facade

Allianz Field

Semi-translucent facade with integrated LEDs.

Allianz Field features a brilliantly simple design consisting of a semi-translucent PTFE membrane facade wrapped around an undulating steel framework. The completed building has a sleek, modern aesthetic that appears quite different from day to night. The 19,400-seat capacity soccer stadium is located in Saint Paul, Minnesota, for Minnesota United FC, the city’s Major League Soccer club. The $250 million stadium was designed by the renowned sports architecture firm, Populous, with assistance from engineering firm Walter P Moore.

Daytime view of the tensile facade at Allianz Field in Saint Paul, Minnesota.
The membrane is silver by day, translucent at night.

ETS fabricated and installed the 93,540-square-foot tensile membrane facade. The membrane wrapping around the stadium is a uniquely developed semi-translucent PTFE membrane material. The membrane reflects sunlight, appearing silver during daylight hours and semi-translucent at night. The steel support structure behind the building envelope includes 1,700 embedded computer-controlled LED lights capable of displaying dynamic light shows on the membrane facade.

“ETS worked hand-in-hand with the team to design and detail the exterior skin in an aesthetically pleasing, structurally sound, and cost-effective solution.” Justin Barton, P.E., Principal at Walter P. Moore