When it comes to roofing a house with plastic roofing sheets, it’s important to ensure that the proper roofing materials are used. One key aspect of this is the installation of purlins. Purlins are horizontal supports that are used to hold up the roofing sheets and provide stability to the roof.
The reason why plastic roofing sheets require purlins is because the sheets are lightweight and flexible. Without the proper support, the sheets could sag or even break under the weight of heavy snow or during strong winds. This could lead to leaks and damage to the house.
To ensure that the plastic roofing sheets are properly supported, it’s important to maintain a distance of 850-900mm between the purlins. This spacing allows for adequate support and helps to prevent any buckling or bending of the sheets.
In addition to providing support, purlins also help to distribute the weight of the roofing sheets evenly across the roof, which further helps to prevent any damage.
By using the proper roofing materials and ensuring the correct installation of purlins, you can ensure that your plastic roofing sheets will provide the best protection for your house. So, when it comes to working roofing, always remember the importance of using the best roofing sheet materials and maintaining the proper distance for support.