GRC Panel Thickness Selection Guide for Curtain Walls: Standard Specifications and Customized Solutions

Thickness determines the performance boundaries of GRC panels, and selection must balance safety and suitability. The thickness of GRC panels for curtain walls directly affects their strength, self-weight, decorative effect, and service life, with significantly different thickness requirements across project scenarios. As a Qinglong GRC manufacturer that has participated in drafting industry standards, drawing on 28 years of project experience, we provide a detailed explanation of standard thickness specifications and customized selection logic.

#Standard Thickness Specifications: Suitable for Most Application Scenarios According to the Technical Standard for Architectural Application of Glass Fiber Reinforced Cement (GRC), there are clear references for the standard thickness of GRC panels for curtain walls: flat standard curtain wall panels are typically 15-25mm thick, suitable for conventional projects such as commercial complexes and residential exterior walls, like the 16mm thick GRC curtain wall panels of the Shanghai Qingpu R&D and production project, which balance lightness and strength; shaped and hollowed-out GRC panels require increased thickness of 20-30mm due to their structural particularity, such as the 15mm thick carved GRC panels of the Wuhan Han Show Theater, whose strength is guaranteed through optimized fiber ratios; for large-area curtain walls or high-rise projects, thickness can be adjusted to 25-35mm to enhance wind load and seismic resistance—the 19,800 square meter GRC curtain wall of Shenzhen Longhua Xiangshan Science and Technology Park uses 25mm thick panels to meet high-rise requirements. All Qinglong standard GRC panels pass flexural strength testing, with 15mm thick panels achieving flexural strength of over 15MPa.

#Customized Thickness: Meeting Complex Project Requirements Complex projects require customized GRC panel thickness based on actual working conditions. Qinglong provides personalized solutions for different scenarios: double-curved GRC curtain walls, with complex surface stress distribution, typically require 25-30mm thickness, such as the shaped double-curved panels of Hainan Poly Peninsula No. 1, where 25-30mm thickness ensures both smooth shaping and structural safety; GRC panels with hollow-out rates exceeding 50% need increased thickness of 30-40mm, compensating for strength loss through thicker substrates, such as the colored hollowed-out carved panels of Nanning Liyuan Hotel; for overseas projects in high-temperature or extremely cold regions, thickness can be appropriately adjusted, combined with insulation layers for functional integration—the 50mm thick UHPC hollowed-out panels (upgraded GRC material) of the Ouargla Hotel in Algeria are suited to the local extreme climate.

#Core Principles of Thickness Selection: Scientifically Balancing Performance and Cost GRC panel thickness selection must follow three principles: first, based on component dimensions and span—the larger the span, the greater the thickness required to avoid deformation; second, considering load conditions—panels in high-stress areas such as high-rises and windward faces need to be thicker; third, balancing cost and self-weight—while meeting performance requirements, prioritize lightweight thickness to reduce building loads and construction costs. Qinglong uses professional calculation software to simulate the stress conditions of panels with different thicknesses, providing customers with optimal selection recommendations. For example, the Dongguan Women and Children's Activity Center project adopted 20mm thick GRC panels after precise calculations, meeting both decorative shaping requirements and project cost control.

Thickness selection for GRC curtain wall panels combines technology and practice, requiring consideration of both standard specifications and project-specific requirements. With its experience in drafting industry standards, precise calculation capabilities, and rich project cases, Qinglong provides scientific thickness solutions for various GRC curtain wall projects. In the trend of pursuing a balance between architectural quality and economy, professional thickness selection capability will become a key competitive advantage for GRC manufacturers.