ST-52 FACADE

The ST-52 is a versatile and universal curtain wall facade system suitable for a wide range of architectural applications.

DOWNLOAD DETAILED SPECIFICATIONS

A top-down view of a four-pane glass window with black and gray metal framing.

PERFORMANCE & SPECIFICATIONS

  • Class/AAMA Rating: AW-PG25

  • Operation: Hidden Top Hung

  • Max Glazing: 1-1/2”

  • U-Value: 0.12 Btu/H×Ft2×°F

  • STC: 39dB

  • Uniform Load - 37.59 psf  

  • Design Pressure - 25.06 psf

Close-up view of a modern aluminum window frame with glass panes, showing the detailed internal structure and hardware.

A wide range of mullions and transoms work in tandem with the base system to accommodate large and heavy glazing modules.

With mullion profiles ranging from 5/8” to 10”, and transoms ranging from 7/8” to 10”, paired with its ability to utilize a variety of union options, the ST-52 system is a universal and versatile facade solution for vertical, inclined, corner, and polygonal applications.

Modern multi-story office or hospital building with large glass windows, surrounded by landscaped greenery and a clear blue sky.

With an ample glazing capacity of up to 1-1/2”, and the interior visible section of only 2”, the ST-52 facade system provides great energy efficiency, as well as thermal and acoustic insulation with the help of newly designed PVC thermal breaks and EPDM gaskets.

The ST-52 is intended to provide a sleek and modern “all glass” exterior look.

The ST-52's glass is attached to its aluminum frame using structural silicone. Special clips are used to affix the glass-frame set to the supporting profiles.

The ST-52 facade system distinguishes itself by offering a high style curtain wall solution with the ability to integrate fixed or operable windows that can open inward or outward.

A series of EPDM gaskets installed around the perimeter of each glass module offer an all glass exterior styling, as well as a weathertight barrier against the elements. A special overlap cover is used to conceal the space between gaskets.

Dimensions

- Max Width: 98.5”
- Max Height: 98.5”
- Min Width: 19.5”
- Min Height: 25.5”

SECTIONS
- Mullion: 2”
- Transom: 2”

PROFILE THICKNESS
- Mullion: 2.1 mm & 3.0 mm
- Transom: 2.1 mm

Characteristics

  • 6063 T-5 (Anodized Aluminum)

  • Thermal Breaks: 1/4”, 1/2”, 1-3/16” (PVC)

  • Gaskets: EPDM, Vulcanized (optional)

  • U ≥ 0.12 Btu/(h⋅ft²⋅°F)

  • Max Glazing: 1-1/2”

  • Min Glazing: 1/4”

  • Max Weight (top hung): 396 lb.

  • Max Weight (fixed light): 770 lb.

FEATURES

  • “All Glass” exterior

  • Mullions from 5/8” to 10”, Transoms: from 7/8” to 10”

  • Interior visible section: 2”

  • Vertical, Inclined, 90°, corners, polygonal

  • Large and heavy glazing modulations

  • Weather Tightness Elements: Drainage pipettes, tear strip gaskets, vulcanized edges

  • EPDM gaskets around the perimeter of each glass module

  • Excellent thermal and acoustic properties

Three images of structural aluminum framing systems for glass partitions and doors.

TRANSMITTANCE

Vetrina Windows uses AAMA 2604 Powder Coating as the primary process for applying colors to aluminum profiles. Our process yields highly durable long-lasting surfaces, resistant to severe atmospheric conditions. We are proud to offer the full RAL chart as the range of color options for the aluminum frames. Dual-color options are also available, where the exterior and interior frames can be different colors to match any aesthetic.

Color wheel displaying a spectrum of colors from violet to red, arranged in a circular layout.