GBA 108 Window System — AMAA 101 Test Report Summary

In modern architectural design, passive design has become an increasingly important topic. The goal of passive design is to optimize the building's layout, facade, and window design to maximize the use of natural resources such as sunlight, wind, and natural heat, thereby improving the building's energy efficiency, comfort, and sustainability.

As people pay more attention to energy conservation, emission reduction, and environmental protection, aluminum window systems have become an essential component of passive design. Today, we will explore the core principles of passive design and how aluminum windows, awning systems, pergola systems, and metal facades play an important role in these designs.

What Is AAMA/WDMA/CSA 101/I.S.2/A440-17?

NAFS stands for the North American Fenestration Standard, jointly developed by AAMA, WDMA, and CSA. It provides a unified performance evaluation method for windows, doors, and skylights across the United States and Canada.

The test evaluates a window's ability to withstand:

Wind load resistance

Water penetration resistance

Air leakage resistance

Structural integrity

Ease of operation, forced entry resistance, and more

Passing the NAFS 2017 test means a product has been fully laboratory-tested and proven to meet the strict standards required by building codes and project specifications.

Tested System: GBA108 Casement + Fixed Window

Thermal Break Technology

Product: Casement Window with Fixed Panel

Model: GBA108

Frame Size: 2400 mm (W) x 1600 mm (H) x 108.4 mm (T)

Operable Sash: 794 mm x 1474 mm

Thermal Break: Model C64, PA66GF25 insulation strip (by Technoform Bautec Suzhou)

Glazing: Triple-glazed structure with Low-E layers

Hardware: Imported from GIESSE, Italy

The window system was not weathered or conditioned prior to testing, and still delivered strong performance across all NAFS test items.

Partial Test Results

The GBA108 Window System has successfully passed all NAFS-2017 performance tests, demonstrating excellent results in key areas:

Air Leakage: Minimal air leakage, ensuring energy efficiency and comfort.

Water Penetration Resistance: High resistance to water infiltration, protecting against leaks and damage.

Structural Integrity: Strong and durable, withstanding extreme weather conditions.

Operating Force: Requires minimal force to operate, ensuring ease of use and accessibility.

Overall, it meets the highest standards for performance and reliability.

Test Item

Requirement

Result

Verdict

Force to Initiate Movement

≤ 155 N

64 N

Pass ✅

Force to Maintain Movement

≤ 135 N

38 N

Pass ✅

Comment:

The casement window demonstrates excellent operability. Both the force to initiate and to maintain movement are far below the required limits, ensuring smooth and effortless operation.

1. Operating Force Test (Casement Part)

Pressure

Requirement

Result

Verdict

+75 Pa

≤ 0.5 L/s·m²

< 0.1 L/s·m²

Pass ✅

≤ 0.5 L/s·m²

Pass ✅

Comment:

Air leakage performance is outstanding for both casement and fixed parts. All results are well below the maximum allowable leakage rate, indicating excellent airtightness and energy efficiency.

2. Air Leakage Resistance Test

-75 Pa

< 0.1 L/s·m²

Test Pressure

Requirement

Result

Verdict

≥ 510 Pa

720 Pa

No water penetration observed

Pass ✅

Comment:

The unit exceeded the standard requirement by withstanding a pressure of 720 Pa without any water penetration. This confirms high resistance against wind-driven rain and harsh weather conditions.

3. Water Penetration Resistance Test

Test Pressure

Location

Max. Deflection

Verdict

3360 Pa

Handle side stile

0.8 mm

Pass ✅

Bottom rail

Pass ✅

Overall Comment:

All tested parameters meet or exceed the Class CW-PG70 performance standard. The product shows reliable performance in terms of operability, sealing, water resistance, and structural behavior, making it highly suitable for demanding residential and commercial building applications.

4. Uniform Load Deflection Test at Design Pressure

3360 Pa

0.3 mm

3360 Pa

Mullion

2.3 mm

Pass ✅

Comment:

Deflections under design pressure were minimal and well-controlled, demonstrating strong structural integrity and durability under load.

At GBA, we understand what matters to our B2B clients—compliance, technical performance, customization, and support. We go beyond export by offering:

🔧 Real testing with full traceability

📐 Products designed for local climate, building codes, and architecture

🚛 Strong coordination from factory to delivery and after-sales

📩 Request the full test report or consult with us for NAFS-ready window solutions.

We’re ready to support your projects from the ground up—with performance you can trust.

GET QUOTE

Welcome to inquire for perfect solutions for your construction projects. GBA aluminum facade system includes the manufacturing and design of windows & doors, railings & staircases, awnings & pergolas, and metalwork.