For making roofs, purlins are used and preferred by a lot of people worldwide. If you do not know what they are then we would like to mention that they are the supporting rails on which a roof is placed. You might have seen them in different materials like steel, wood etc.
If you wish to know about their benefits then here are some of them. First, they are not costly. You can easily afford them. Second, their installation is also not costly. People can also install them on their own if they have some experience in it. They would be able to cut them easily with a nibbler. Third, as they are not heavy, it is very easy to carry them to different places. For instance, at a construction site, large number of purlin might be required at different places. This can be done easily due to their light weight.
If we talk about steel framing then we can say it is also widely used in the construction industry. Steel is a material which has so many qualities which make it great for construction. Steel frames are used in buildings because they are flexible. Rather than breaking up due to an impact, they flex. Using such frames would be beneficial when a building is in danger due to earthquake. The steel will flex and give time to people so that they can exit the building. The steel frames will not let the building collapse quickly.
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