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ភាសាខ្មែរthe distance between steel purlins for roofing
A construction worker must calculate the distance between the steel purlins and the corrugated steel roof to ensure a solid and safe structure. This step is crucial because the purlins form the framework that supports the roof. This article is for you if you’re unsure about the proper distance. Read on for more information!
What type of purlin is used for corrugated roofs?
There are many types of purlins on the market today. Depending on the design of each roof, the most commonly used purlins will be:
- C-channel purlin: This is the most popular type of purlin, C-channel, and is easy to process and install. C- channel medium-sized factories, warehouses, and houses.
- Z- purlin: Has higher stiffness than C-channel purlin. It is often used for large-area constructions with large slopes.
- square steel purlin: Has very high stiffness, and good load-bearing capacity in all directions. Even if the roof is steep and heavy, this type can still support it very well.
Steel purlin spacing for corrugated roofing
- According to construction experience: Normally, the purlin distance for corrugated steel roofs is from 70-90cm. With corrugated with an insulation foam layer, the distance can be increased to 80-120cm.
- For a 2-layer truss system: The ideal distance is 110-120cm.
- For a 3-layer truss system: The most ideal distance is 80-90cm.
Note: These are just reference distances. For the most accurate results, you should calculate carefully or seek expert advice.
Factors affecting the calculation of purlin spacing for corrugated roofing
Each type of purlin and each type of roof will have different distances. Below are the main factors that affect this distance parameter. At the same time, when calculating, technicians should also pay special attention to these things:
- Types of corrugated, whether thin or thick with or without insulation, affect the load on the roof.
- Purlin size: The height, width and thickness of the purlin will determine the load-bearing capacity.
- Roof slope: A steep roof slope will reduce the load on the purlins more than a steep roof slope.
- Weather conditions: Areas with high winds and heavy rain will require thicker purlins and smaller spacing.
- Additional Loads: Equipment such as air conditioners and water heaters placed on the roof will also increase the load.
Why do we need to calculate the distance between steel purlins for roofing?
Uniform purlin spacing makes the roof flatter and more beautiful.
Responding to customer inquiries.
How long is a purlin?
- C and Z- purlins: Standard length is usually from 6m to 12m.
- Square steel purlins: Length can be more flexible, depending on the requirements of the project.
How long is a square steel bar?
Tiger Steel is a subsidiary of Bao Tin Steel