C and Z Purlin
A purlin is a horizontal beam or bar used for structural support. It is mainly below the roof and supported by the building’s walls. Purlin manufacturers, India manufacture purlins in two types – C and Z purlins.
- Length: As per Customer Need
- Thickness: 1.2 mm and 2 mm
A purlin is a horizontal beam or bar used for structural support. It is mainly below the roof and supported by the building’s walls. Purlin manufacturers, India manufacture purlins in two types – C and Z purlins..
C purlin: As the name says, these purlin sheets are in the shape of a C and are primarily used for support of walls and floors. The C or cee purlins have a freestanding stable shape which is easy to handle and also suitable for supporting the beams required for flooring. C purlins have equal extensions on their ends which are used in single spans. These types of purlin sheets are used in the construction of small to medium-sized buildings as structural frameworks.
Z Purlin: Z or zed purlins are available in the shape of Z and are stronger than C purlin. These types of purlins feature one board and one narrow flange which allows the two sections to fit together, making them suitable for lapping. The Z sections having different thicknesses but the same depth can be lapped together to make any combination. The Z or zed purlins act as sheet support by sitting between the roofing sheets and the building ensuring that it is firmly attached and secure in place. Because of their high flexibility and lightweight properties, these purlins are mostly used in industrial and agricultural buildings.
Difference between C and Z Purlin
|Aspect||C Purlin||Z Purlin|
|Shape||Shaped like the alphabet C and used to support walls and floors. One side of a C purlin is plain. Hence, it is preferred for cladding.||Shaped like the alphabet Z, Z purlins are made of cold-formed or roll sheets. Z purlins save up to 50% on structural sheets.|
|Angles||90-degree angle||Less than 90 degrees|
|Use||Shape a particular building’s shell structure walls and floor joists||Shape a particular building’s shell structure’s roof and wall joists|
|Strength||C purlins are relatively less strong||Z purlins are highly strong and can provide support to heavy structures|
|Support||Support the beams required for flooring||Often, placed between roofing sheets to provide support|
|Overlapping||C purlins cannot be overlapped||Z purlins can be continuously overlapped|
|Installation||C purlins are easy to install||Z purlins require a higher amount of effort and proficiency to install|
Benefits of C and Z Purlin
- Easy to install
- Available in both C & Z shapes
- Highly durable
- Comes in standard customized specification
- Superior tensile strength
- Abrasion corrosion resistant
- Easy handling
- Are used for structural support in buildings and structures.