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Founder Introduction and JAS Waterproofing Design Philosophy

JAS Founder and Waterproofing Design Philosophy：https://www.jas.com.tw/about/9

Founder Statement & JAS Waterproofing Design Philosophy

Founded by Dr. Cheng-Feng Chang, who holds a Ph.D. in Civil Engineering from National Cheng Kung University and brings over 28 years of hands-on engineering experience, JAS is built upon a clear and fundamental belief:

“Waterproofing is not a coating issue — it is a structural durability engineering issue.”

The JAS system is designed to address the dual challenges of labor shortages and extreme climate conditions facing the modern construction industry. By transforming waterproofing into standardized and automated processes, JAS reduces reliance on skilled labor while improving consistency and reliability.

At the same time, JAS emphasizes that durability is sustainability. By extending building service life and adopting non-toxic, environmentally friendly materials, JAS contributes to energy savings, carbon reduction, and long-term environmental responsibility.

Incorporating the BS 8102 dual protection concept, JAS establishes a redundant risk-management system that minimizes single-point failure and ensures long-term structural safety.

1. Founder Profile — Solving Modern Construction Challenges from a Civil Engineering Perspective

Dr. Chang, Cheng-Feng

Education
Ph.D. in Civil Engineering, National Cheng Kung University (NCKU)

Professional Qualifications

  • Licensed Professional Civil Engineer

  • Gold Award Winner, Public Construction Quality Award

  • Technical Committee Member for CNS National Standards (Civil & Building Engineering)

Professional Experience
With 28 years of engineering practice, Dr. Chang is dedicated to translating material science into practical solutions that address labor shortages, durability challenges, and long-term performance in construction.

Technical Philosophy

“Waterproofing is not a coating problem, but a structural durability engineering problem.”

JAS does not merely provide waterproofing materials — we deliver solutions to construction risk.
In an era defined by labor shortages and increasingly extreme climate conditions, JAS supports architects and engineers by introducing science-based standards that shift construction from labor-dependent practices to performance-driven engineering, enabling the creation of longer-lasting, environmentally responsible landmark buildings.

2. Three Core Pillars of Modern Engineering

Pillar 1: A Solution for the Era of Labor Shortage

Replacing labor dependency with material science

Traditional waterproofing systems involve complex, multi-step processes (primer, intermediate coat, top coat, curing), heavily dependent on workmanship and on-site conditions.

The JAS system simplifies waterproofing into standardized engineering workflows:

  • Automated Application
    JAS-UHPWA 101 is added directly at the ready-mix concrete plant, achieving waterproofing simultaneously during concrete placement — with zero additional on-site labor.

  • Rapid Protection
    JAS-SUPERWA 201 utilizes high-pressure spray application, enabling fast installation and significantly reducing dependence on highly skilled labor.

Pillar 2: Sustainability & Decarbonization (ESG)

Durability is the ultimate form of environmental protection

The largest sources of carbon emissions in the construction industry come from demolition, reconstruction, and repeated repairs.

  • Extended Service Life
    JAS systems are designed to last for the life of the structure, eliminating the need to remove and reapply waterproofing layers every 5–10 years, thereby reducing waste and embodied carbon.

  • Non-Toxic & Eco-Friendly Materials
    All JAS products are water-based, non-toxic, and low-VOC, fully aligned with green building certifications and the UN Sustainable Development Goals (SDGs).

Pillar 3: Risk Management–Driven Design

BS 8102 dual protection — eliminating single-point failure

In accordance with British Standard BS 8102, JAS does not rely on the perfection of a single waterproofing layer. Instead, it establishes a redundant protection system:

  • Type B (Integral Protection)
    The concrete structure itself is made watertight, forming the first line of defense.

  • Type A (External Protection)
    A nano-crystalline surface protection layer acts as the second line of defense.

Even if the surface layer is damaged, the structure remains watertight.
Even if micro-cracks develop within the structure, the surface layer continues to resist water ingress.
This dual-layer redundancy minimizes risk and ensures long-term building safety.

 

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