Posted: 19/10/2016 at 22:23
DHR ; I used to have a swimming pool in the garden of our previous house, so I know the bubble wrap that you mean.
The bubble plastic for a swimming pool is designed to keep the heat of the water from being dissipated in the air. It is heavy, blue (for the cheapest) and gold coloured for the most effective.
It is not interchangeable with bubble wrap for use in a GH. Sorry, but it's heavyweight and far too shaded for use where plants need all they light they can get, by the end of the winter at the very least. The product is also stiff and would be difficult to use in a GH.
Garden Centres sell bubble wrap for use in the GH. Small bubbles are easier to handle, large bubbles have better insulation properties. But swimming pool insulation is expensive and not right for the job.
And if you look after it, the orodinary bubble wrap will last many years, even if you have had to use tape to fix it. I have done so many, many times.