Project Overview: IconSiam Rooftop Canopy – Tensile membrane architecture for high-end commercial space
The article analyzes the technical solutions applied to the project. IconSiam rooftop canopy (Bangkok, Thailand). This is a typical project for the use of Tensile membrane architecture to create an outdoor service space that is both aesthetically pleasing and meets the strict safety and functionality standards of a world-leading shopping mall.
- Category: Architectural canopy for rooftop bar and restaurant area.
- Location: Shopping mall IconSiam, Bangkok, Thailand.
- Main materials: PVDF membrane, steel structure.
- Technical objectives: Shielding, wind load resistance, optimal aesthetics and does not obstruct vision.
Technical Requirements Analysis & Project Context
Exploiting rooftop space at an iconic building like IconSiam poses specific and strict technical requirements:
- Functional and Operational Requirements: It is necessary to create a covered space to ensure that restaurant and bar business operations can take place continuously, without being interrupted by harsh weather conditions (harsh sunlight, heavy rain) of the tropical climate.
- Aesthetic and Branding Requirements: The design must be an architectural highlight, consistent with IconSiam's brand class, enhancing the visual experience of customers and especially not obstructing the panoramic view of the Chao Phraya River and the city.
- Structural Engineering Requirements: The structure must be precisely calculated to withstand high wind loads at elevated locations. Structural safety is a top priority, requiring compliance with strict international building codes.

Technical Solutions and Implementation Process
Based on the complex requirements of the project, a tensile membrane architectural solution was selected with an optimal combination of high performance materials and intelligent structural design.
PVDF Membrane Material Selection
The material chosen is an architectural membrane with a core of Polyester fibres and coated on both sides with PVDF (Polyvinylidene Fluoride). This is the optimal technical choice based on the following characteristics:
– Weather and UV resistance: The PVDF coating functions as a barrier, protecting the bearing fiber layer from the effects of ultraviolet radiation and environmental factors, ensuring color fastness and structural life of over 15-20 years.
– High mechanical strength: Polyester base layer provides high tensile strength and tear strength, allowing the creation of highly prestressed structures, helping the surface to always be tense and stable in shape under the impact of external forces.
– Flexible in shaping: The material allows the creation of complex anticlastic curved surfaces, perfectly meeting the architectural design intent of the sail shape.
Sail Form Design
The structural solution consists of a series of sail-shaped canopy modules (Hypar – Hyperbolic Paraboloid). Each module is shaped by applying tension at anchor points at different heights. This design not only brings high aesthetic efficiency but is also very aerodynamically effective, helping to minimize wind pressure on the canopy surface, contributing to ensuring the safety of the entire system.
Results and Performance Evaluation
System implementation IconSiam rooftop canopy has yielded positive and quantifiable results:
- Business Performance: The roofing system allows the rooftop space to operate at full capacity in all weather conditions, maximizing revenue and improving investment efficiency for the F&B business area.
- Enhance Customer Experience: Providing a comfortable, convenient outdoor space with unobstructed views, while creating an impressive check-in backdrop, contributing to viral marketing for the location.
- Architectural and Safety Value: The project has become an indispensable part of IconSiam's architectural identity, calculated and technically tested to ensure absolute safety under the impact of complex overhead loads.
Contact Technical Consulting
Flexiiform specializes in consulting, designing and constructing tensile membrane structural solutions for high-end commercial and service spaces. We have the capacity to implement projects that require strict requirements on aesthetics, functionality and international safety standards.
For detailed technical advice on roofing solutions, please contact:
- Company: Flexiiform
- Website: https://flexiiform.vn
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