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Watch our step by step guide to shrink wrapping a temporary roof
How to Shrink Wrap a Temporary Roof Scaffolding - Quick Guide
- Start by hanging your sheet around the sides of the scaffolding. We generally recommend a 7m wide x 15m long roll of shrink wrap sheeting because this allows a 'drop' of 6m (3 scaffolding lifts) with a 0.5m overlap top and bottom. Start from the top lift of the scaffolding and work downwards.
- Batten the top edge of the side sheet around the perimeter of the roof.
- Heat weld any sheets together. At this point the side sheets can be heat shrunk drum tight using a hand held propane gas hot air gun (see image below) or you can move on to installing the roof sheets.
- Unroll roof sheets and batten around perimeter of roof and at 2 metre intervals across the surface of the roof.
- Heat weld areas where shrink wrap sheets overlap. Heat weld the roof sheet to the side sheets. Ensure that any overlap is at least 30-40cm to create a strong weld that will stay bonded.
- Shrink the entire roof sheet 'drum tight'. This heat shrinking can take place from above or below the roof sheeting. (see setting up scaffold structure below).
- Ensure scaffold structure is suitable for shrink wrapping - no protruding tubes! Roof must be boarded and provided with a handrail to provide safe access.
- Do not attempt to shrink wrap in wet or windy conditions.
- Use a good quality plastic shrink wrap film. For scaffolding we recommend a shrink wrap film at least 300 microns thick.
- Most construction sites will insist the shrink wrap film is flame retardant. Make sure your film is compliant with the standards.
- Make sure the installation team has sufficient knowledge. Shrink wrapping is a simple concept but it is critical to weld and shrink the film properly, especially for temporary roofs. If necessary, arrange some training!