In the Indian market, apart from big companies or those familiar with the industry, most people know and use only two types of purlins: C purlin and Z purlin. While they are well-known, proven, and widely available, we as human beings always strive for better solutions. This is where Hat Purlins come in. As the name suggests, their profile resembles a hat — and this unique shape brings notable advantages.
Distinctive Profile & Geometry: Symmetrical profile with a wide, flat top flange and vertical side webs, providing a continuous bearing surface for sheeting, improving load transfer, and reducing local stress points.
Enhanced Torsional Resistance: Symmetry minimizes twisting under load compared to Z and C sections, maintaining alignment of cladding and ensuring uniform load distribution.
Role in Stressed Skin Action: Broad top flange maximizes diaphragm action, allowing cladding to act as a shear panel and transfer horizontal loads effectively to the main frame.
Improved Purlin-to-Beam Connection Stiffness: Uniform stiffness in both inward and outward load directions supports stronger fastening methods, reducing flexibility losses.
Reduction in Lateral Deformations: Stiffer connections via Hat Purlins can cut frame sway and lateral movement by over 50% in some applications, improving safety under wind or seismic forces.
Column & Beam Stability Gains: Uniform load distribution reduces the risk of column lateral-torsional buckling, supporting lighter frame designs without compromising stability.
Minimized Eccentricity Effects: Symmetrical design reduces torsional stresses and uneven diaphragm stiffness across roof sections, performing consistently on both sides of the ridge line.
Load Path Optimization: Direct transfer of loads from cladding to rafters without excessive secondary bending, improving structural efficiency and reducing material fatigue.
Practical Installation Advantages: Flat top simplifies sheeting placement and alignment, reduces the need for packing/spacers, and suits both new construction and retrofitting projects.
We manufacture Hat Purlins as per your exact requirements, from material grade to lengths of up to 12 meters, supplied directly from our factory at Kurkumbh MIDC — no middlemen, no extra steps. You get structural strength where C and Z purlins cannot match, without added cost.
📞 +91 8550995556
📧 roof@geometricsteels.com
🌐 www.colourfrogroof.com
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