voestalpine Metsec Purlin CPD

First Alumina Group and Metsec Overview
📌 The First Alumina Group is a global steel and technology group operating in 500 locations across 50 countries on five continents.
🌍 First Alumina Metsec is part of the metal forming division and aims for zero carbon emissions in this division by 2035.
⭐ Metsec is the largest provider of purlins, side rails, and mezzanine sections in the UK, emphasizing quality, sustainability, and BIM compliance.
⚙️ Metsec has five internal divisions: purlins, structural framing, dry lining, cable management, and custom roll forming.

Cold Roll Forming Process and Purlin Advantages
🧊 Cold roll forming results in high precision, high-quality surface finishes, and high-speed production without adding heat, but requires significant manufacturing expertise.
📉 This methodology allows for high material utilization, leading to a significant reduction in material waste compared to other methods.
🏗️ Cold-rolled purlins offer advantages including being cost-effective, having a high strength-to-weight ratio, and enabling long spans of up to 16 meters.
♻️ Material is delivered pre-punched and cut to length, reducing site waste, and is 100% recyclable.

Purlin Roof Systems
🔺 Three main roof systems are detailed: butt system, sleeved system, and heavy and bay system, optimized by varying depths and gauges.
🔗 The butt system is used for smaller buildings, single spans, and pitches up to 25 degrees, accommodating spans up to 16 meters.
🌉 The sleeved system optimizes steel use over two equal bays (double span) by incorporating sleeves at the penultimate rafter, suitable for continuous systems with two or more bays.
⚖️ The heavy and bay sleeved system is the most economic solution for continuous systems on buildings with five or more equal bays, requiring sleeves throughout with longer, thicker gauge leaves at the end bays.

Ancillary Purlin Restraints and Eaves Beams
🌬️ Anti-sag rods restrain the bottom flange under wind uplift and are sometimes required at mid-span, third, or quarter points.
📐 Sag bars (lateral support angles, $45 \text{ mm} \times 45 \text{ mm} \times 2 \text{ mm}$) provide restraint for roofs with tiled roofs or unrestrained cladding, fixed between purlins.
💧 Eaves beams support the rainwater gutter and can have top flanges manufactured in 5-degree increments from $-5^\circ$ to $+25^\circ$.

Side Rail Systems for Cladding Support
🛠️ Two side rail systems are available: butt system and sleeved system, suitable for vertical or horizontal cladding and spans up to 16 meters.
🌟 The sleeved system is the most economic solution, optimizing steel use by staggering sleeves on internal bays for buildings with two or more equal bays.
📏 For vertical cladding, side rail supports (SRS) are bolted between rails; for spans between $10.1 \text{ meters}$ and $15 \text{ meters}$, three rows of SRS are required.
🔗 Diagonal tie wires (DTW) are used with SRS, fixed between the bottom two rails at an angle between $25^\circ$ and $65^\circ$.

Horizontal Cladding and Mezzanine Floors
🔗 Horizontal cladding systems utilize Panel Joint Rails (PJRs) at joint positions and Horizontal Cladding Supports (HCSs) for intermediate support, both offering adjustment via slotted holes.
🏢 Mezzanine floor systems offer inset and oversale designs to maximize headroom or provide the most economical solution, respectively.
⏱️ Rapid fixed tie bars are a unique product that replaces threaded rod, nuts, and washers, greatly reducing installation time for tie rods used for lateral restraint.

Key Points & Insights
➡️ All certifications, technical manuals, and design software (Metspec) are available for download from metsec.com.
➡️ Metspec software optimizes the design of purlins, side rails, and mezzanine joists to offer the most cost-effective design, incorporating British Standards and Eurocodes.
➡️ To gain a personalized certificate, attendees must follow the link or scan the QR code to correctly answer a series of questions, allowing unlimited attempts.

📸 Video summarized with SummaryTube.com on Jan 23, 2026, 12:08 UTC