Z Purlins
Z Purlins
£-.--+VAT
| Quantity | Length | Unit | |
|---|---|---|---|
Item Specifics
Finish: Galvanised
Galvanised sheeting is a high quality hot dipped zinc coated steel with no additional finishes added. Now the base material for Polyester paint and PVC Plastisol coated roofing sheets, galvanised steel sheets have been used for over 100 years.
It is worth noting that galvanised steel will weather over time and become duller. Also galvanised steel can vary in finish and we highly recommend taking a coated sheet if colour is an issue.
As long as the material is fitted and treated properly then it can last a number of years, however the material is very susceptible to corrosion especially the steel underneath the zinc coating. We do not recommend using galvanised sheets within 3 miles of the coast as coastal environments can significantly decrease lifespan.
Galvanised steel sheets can sometimes be confused with stainless steel, however it is important to note these are different products.
Please be aware that galvanised sheets cannot be painted until they have weathered. This usually takes approx 6 months. If a more durable coloured finish is required please consider polyester painted or PVC plastisol sheets
Galvanised steel is not a colour and surface finish is not consistent. As the steel weathers you will see discolouration in areas. Over time the surface will become rougher as the material weathers. If you require a more consistent finish we would recommend using a coated steel finish such as polyester paint or PVC plastisol.
Care should also be taken when storing galvanised sheets. We recommend storing indoors at a consistent temperature to avoid water ingress and weathering whilst still stacked. Also degreasing the sheets is recommended to remove any excess rolling oil as this may cause reactions when the steel begins to weather.
Finish Properties
| Property | Unit | Value | Test Standard |
|---|---|---|---|
| Standard zinc coating | (g/m2) | 275 (Z275) | |
| Minimum yield stress | (N/mm2) | 220 (S220GD) | EN 10147:2000 |
| Bending and profiling quality | DX51D | EN 10142:2000 | |
| Estimated time to first maintenance*: | |||
| Dry and unpolluted | (years) | 20-50 | |
| Suburban and rural | (years) | 5-10 | |
| Industrial and urban | (years) | 2-5 | |
| Coastal | (years) | 1-5 | |
| Fire classification | A1 | BS EN 13501 |
Product Details
Z Purlins – Structural Support for Roof & Wall Cladding
Z purlins (also known as zed purlins) are cold rolled steel sections designed to form the horizontal support framework for metal roofing and wall cladding systems. Positioned between the external sheets and the building’s substructure, they ensure secure and stable installation across a wide range of building types.
Product Features
- Material: Pre hot-dipped galvanised steel
- Coating: G275 (275g/m² zinc coating)
- Yield Strength: Minimum 450 N/mm² (EN 10147:2000)
- Certification: CE marked
- Manufacturing: Cold rolled to order
- Lengths: Made to bespoke sizes to suit your project
Applications
- Horizontal support for metal roofing sheets
- Wall cladding support in steel-framed buildings
- Industrial, agricultural, and commercial structures
- Used in conjunction with C rails for wall systems
| Height | Top Flange | Bottom Flange | Top Lip | Bottom Lip |
|---|---|---|---|---|
| 140mm | 65mm | 60mm | 15mm(min)* | 15mm(min)* |
| 175mm | 70mm | 65mm | 15mm(min)* | 15mm(min)* |
| 200mm | 70mm | 65mm | 15mm(min)* | 15mm(min)* |
*Lip sizes are indicative and may change based on coil width.
Please consult a structural engineer to select the correct size of purlin, suitable for your spans.
Z purlins offer a lightweight yet strong solution for structural support in modern steel buildings. Contact us to specify your required lengths, confirm load capacities, or request a quote.Pricing
| Description | Price |
|---|---|
| Z-Purlin 140mm 1.6mm gauge - Galvanised | £10.00+VAT |
| Z-Purlin 140mm 1.8mm gauge - Galvanised | £11.23+VAT |
| Z-Purlin 140mm 2.0mm gauge - Galvanised | £12.51+VAT |
| Z-Purlin 175mm 1.6mm gauge - Galvanised | £10.31+VAT |
| Z-Purlin 175mm 1.8mm gauge - Galvanised | £11.53+VAT |
| Z-Purlin 175mm 2.0mm gauge - Galvanised | £13.08+VAT |
| Z-Purlin 200mm 1.6mm gauge - Galvanised | £10.76+VAT |
| Z-Purlin 200mm 1.8mm gauge - Galvanised | £11.54+VAT |
| Z-Purlin 200mm 2.0mm gauge - Galvanised | £13.77+VAT |
