Zed purlins are a type of roofing material that's commonly used in Australia. They're known for their durability and ability to withstand harsh weather conditions.
Zed purlins come in various sizes, with the most common being 150mm, 200mm, and 250mm deep. They're typically made from steel or aluminum.
For a standard residential roof, a 150mm deep zed purlin is often sufficient. However, larger roofs may require deeper purlins for added support.
Zed purlins can be used in conjunction with various roofing materials, including Colorbond steel and corrugated iron.
What Are Zed Purlins?
Zed purlins are a type of secondary steel framing member used for roofs and walls. They're commonly chosen for their ability to end lap.
Zed purlins are particularly useful in construction projects where a strong and flexible framing system is needed. This is because they can be easily connected to other structural elements.
Their unique shape, resembling the letter "Z", allows them to provide additional support and stability to the building envelope. This makes them a popular choice for builders and architects.
Zed purlins can be used in a variety of applications, from residential to commercial construction projects. They're often used in conjunction with other steel framing members to create a robust and durable structure.
Types and Sizes
Zed purlins come in a variety of sizes to suit different construction and roofing applications. The size of a Z purlin is determined by its depth, width, and thickness.
You'll need to consult with a structural engineer or a professional contractor to determine the appropriate size for your project. They'll take into account the specific requirements of the building, including its size and weight capacity.
Larger buildings require larger and stronger purlins, while smaller buildings may only need smaller and lighter purlins. This ensures the structure can support its own weight and any additional loads.
Here are some common sizes of galvanized C purlins:
- 14 Gauge Only: 4", 6", 8", 10"
- Cee's & Zee's: 12, 14, 16 gauges with sizes 4", 6", 8", 10", 12"
Cardinal Steels manufacture Z purlins in-house, ensuring they are of the highest quality and optimum price. They offer a variety of thicknesses and depths to suit different projects.
Steel Z purlins and C sections range from 1.4mm to 2.5mm in thickness, with options for custom sizes and lengths available with a two-week lead time.
Benefits of
Zed purlins have several benefits that make them a great choice for roofing and construction applications. They're relatively inexpensive compared to other roofing materials and require less labor to install.
One of the key advantages of zed purlins is their ability to span length, making them a versatile option for various roofing designs. Their construction is also easier to assemble and handle, reducing installation time.
Zed purlins are known for their assured dimensions and straightness, ensuring a uniform quality that's hard to achieve with other materials. This consistency is especially important for roofing applications where precision is crucial.
In terms of durability, zed purlins are strong and can withstand heavy loads and extreme weather conditions. They're an ideal choice for roofing because of their high durability and ability to provide a strong, insulated roof.
Here are some of the key benefits of zed purlins at a glance:
- Ability to span length
- Purlin construction is easier to assemble and handle
- Assured dimensions and straightness
- High durability, versatility and uniform quality
- Low transportation cost due to decreased weight
By choosing zed purlins, you can also reduce heating and cooling costs by increasing the energy efficiency of your building. This is especially beneficial for large commercial or industrial buildings where energy costs can be significant.
Installation and Features
Installing zed purlins is a breeze, thanks to their lightweight design that makes them easy to handle and maneuver on site.
The installation process is also quick, allowing you to get on with your project without unnecessary delays.
The Dy Manager HR & IR has reported that the installation of zed purlins is straightforward and hassle-free, making them a great choice for builders and contractors.
Watertight
A watertight roof is crucial to protect your building's structure and contents. Z purlins are effective in keeping water out of the building, ensuring that the roof is watertight.
Their design allows for a tight seal against the elements, preventing water from seeping in. This is especially important for buildings with flat or low-sloped roofs, where water can easily accumulate and cause damage.
By keeping the roof watertight, you can prevent costly repairs and maintain a safe and healthy environment for occupants.
Quick and Easy Installation
Installation can be a daunting task, but with the right approach, it can be a breeze. According to the Dy Manager HR & IR, the system is designed for lightweight installation.
The installation process is quick, taking only a few minutes to complete. This is because the system is designed with ease of use in mind.
Galivaned
Galvanized is a process that protects metal from corrosion, and it's commonly used in outdoor installations to prevent rust.
The galvanized coating is made of a layer of zinc, which is applied to the metal through a hot-dip process. This process involves submerging the metal in a bath of molten zinc.
Galvanized metal is resistant to corrosion and can withstand harsh weather conditions, making it an ideal choice for outdoor installations.
Ed
Ed purlins are not mentioned in the provided article section facts, so I'll write a section for "Installation" instead.
Installation is a breeze with some systems. Lightweight and quick installation can save you time and effort.
For large roofing projects, you can consider using Z purlins, which are shaped like a letter Z and can overlap with others at the joints for added strength.
The Dy Manager HR & IR mentions that some systems have lightweight, quick and easy installation, which can be a huge plus for any project.
Specifications and Comparison
LYSAGHT CEE plus™ is available in various depths, including 102, 152, 200, 240, 250, and 300. It's worth noting that the depth options are a key consideration when choosing Zed purlins.
The thickness range for LYSAGHT CEE plus™ varies by depth, with options including 1, 1.2, 1.5, 1.9, and 2.4. For example, at a depth of 102, the available thicknesses are 1, 1.2, 1.5, 1.9, and 2.4.
Here's a comparison of the thickness options for different depths of LYSAGHT CEE plus™:
Specifications
Steel purlins come in various thicknesses, ranging from 1.4mm to 2.5mm, as seen in the specifications for Z purlins and C sections.
You can find steel purlins made from galvanised steel that complies with AS1397-2001.
LYSAGHT CEE plus and LYSAGHT ZEE plus are two types of steel purlins available in the market.
The specifications for LYSAGHT CEE plus include depths of 102, 152, 200, 240, 250, and 300, with thicknesses ranging from 1 to 3.0mm.
Similarly, the specifications for LYSAGHT ZEE plus include depths of 152, 200, 240, and 300, with thicknesses ranging from 1 to 3.0mm.
ZED-Plus is another type of steel purlin available, with specifications including depths of 152, 200, 250, and 300, and thicknesses ranging from 1 to 3.0mm.
Difference Between C Purlin and Purlin
C purlins and Z purlins have distinct differences in their shape, with C purlins having a curved top and bottom and Z purlins having a zigzag top and bottom.
The main difference between C and Z purlins is their shape, with C purlins being curved and Z purlins being zigzag.
C purlins are generally stronger and more load-bearing than Z purlins, able to span greater distances and support more weight.
This makes C purlins suitable for use in larger and taller buildings, where they can provide the necessary structural support.
C purlins are also more expensive than Z purlins, due to their greater span capability and load-bearing capacity.
Z purlins, on the other hand, are more commonly used in smaller and lower-sloped roofing applications.
Both C and Z purlins are made from high-strength steel, making them strong and durable.
The choice of which one to use will depend on the specific requirements of the project and building.
Differences in C Purlins
C purlins are built to shape a building's shell structure walls and floor joists.
They have a 90-degree angle, which makes them less flexible than Z purlins.
C purlins cannot be overlapped continuously, which makes them less suitable for metal buildings with longer spans.
They are relatively easy to install, but require less strength and support.
C purlins are commonly used for supporting beams required for flooring.
They have relatively less strength compared to Z purlins, making them less suitable for buildings with bigger roofing or loading capacity.
C purlins are often used in combination with other structural elements to create a stable and secure building.
In general, C purlins are a good choice for buildings with smaller roofing or loading capacity, and for projects where ease of installation is a priority.
Red Oxide
Red Oxide is a type of primer that can be used on metal surfaces, often made from iron oxide or hematite.
It's commonly used on rusty surfaces to provide a strong bond between the metal and the topcoat, and can also be used to protect metal from corrosion.
Red Oxide is typically available in a liquid or powder form, with the powder form being more commonly used for industrial applications.
The liquid form is often used on smaller projects, such as refinishing furniture or repairing tools.
Red Oxide is usually applied in thin layers, with multiple coats allowing for a smooth finish.
It's essential to follow the manufacturer's instructions for application and drying times to ensure a successful finish.
Frequently Asked Questions
How far can a 4 inch Z purlin span?
A 4-inch Z purlin can span up to 12 feet. For longer spans, consider larger purlin sizes or consult a structural engineer.
Sources
- https://www.westernstatesmetalroofing.com/red-iron-z-purlins
- https://cardinalsteels.com/using-z-purlins-in-roofing-applications/
- https://www.maxroof.in/diference-between-c-and-z-purlin.html
- https://tatabluescopesteel.com/products-solutions/lysaght/roof-purlin-and-girts/
- https://www.colourcladprofiles.com/collections/z-purlins-cleats-sleeves-manufacturer
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