In our previous blog, we talked about ‘Why You Should Use Scaffold Shrink Wrap.’ Contractors and builders rely on its drum-tight fit, something other scaffold protection doesn’t offer. We can’t recommend it enough for scaffold resellers and those seeking full coverage protection against weather and debris containment.
However, certain mistakes in shrink wrap installation and purchasing can impact its effectiveness and your project. Here are some common errors to avoid for the best results:
Don’t Install Shrink Wrap in Unfavourable Weather Conditions
This is because the film, although heavy-duty, may not adhere to the scaffold tubes or the surfaces it is planned to be attached to. To fit shrink wrap over and around a structure successfully, it needs to be welded from the bottom all the way up in one continuous motion. This means the heating tools, like the shrink gun and torch regulator and hose, must work without obstructions. Specifically, rain and strong winds, which can interfere with the process.
Rain
Wet weather can affect shrink wrap applications in two ways. First, when welding: rain can get between the sections that need to be joined. This makes it hard to heat the film, let alone create a bond or attach the material to the scaffold. Second, during the heat shrinking process: if rainwater covers the wrap, it can leave a patchy appearance. This can happen even if the sheet seems to have shrunk.
Wind
The windy weather isn’t great either. While it’s true that properly applied shrink wrap can handle gusts up to 20 mph or more, installing it in those conditions is tricky. To start, there’s the fitting: unrolling, positioning, and even temporarily securing a section of the film with airflow ties can be a hassle, even for skilled installers. Keep in mind, if the sheeting isn’t fitted with enough tension to start with, it won’t be tight enough after heat shrinking. Plus, the film’s strength will be affected.
Next, when shrinking the film: the heat can cause parts of the sheet to bubble or create a big hole. While this doesn’t compromise the overall strength of the shrink wrap, it will impact how the finished job looks.
We recommend waiting for the weather to clear before you cover Scafwrap Shrink Wrap to avoid these issues. In case of any rips or tears, you can patch it from the inside with another piece of shrink wrap or use Scafwrap tape.
Avoid Skipping the Budget Breakdown
This could lead to unexpected costs, especially for short-term projects and when working with a tight budget. You might find that you need more rolls than initially planned, which could delay the project as you may have to reorder and wait for delivery. Knowing exactly what you need and the costs involved lets you give the client or contractor a clear, accurate budget.
Familiarise yourself with the standard cost of shrink wrap in the UK market. Typically, the price ranges from £1.50 and £2.50 per square metre, or £150 to £190 per roll, depending on the size.
While the material itself isn’t too pricey, the real cost comes from the installation. It requires qualified and trained operatives, quality materials, and extra labour or training due to the complexity of the process. These can add up to the overall costs quickly, so keep them in mind when budgeting.
Once Applied, Don’t Remove and Reinstall Shrink Wrap
Once the shrink wrap has shrunk in every direction, creating a taut covering, it can’t be removed and refitted. One modification to a single sheet might work, but it will require extra time, effort, and materials to reapply. For major changes, you may end up spending more.
This is why it’s recommended to hire trained and qualified personnel for installation. It’s also worth investing in training for workers to save time and money on remedial work in the long run. SP Group offers full courses to help contractors upskill their employees and maintain high-quality standards for their business.
For more information on scaffold protection, shrink wrap, scaffold sheeting, FR debris netting, or monarflex alternative, contact us at +44 (028) 9442 8611. SP Group is a scaffold supplier based in UK and Ireland.