How to insulate a greenhouse with bubble wrap – Step by Step

How to insulate a greenhouse with bubble wrap – Step by Step

How to insulate a greenhouse with bubble wrap – Step by Step

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Greenhouses are a wonderful way to help plants thrive all year round, to overwinter plants that cannot remain outside, to propagate ahead of spring, and much more. One of the must-do jobs, especially if you intend to keep your greenhouse frost free or use a greenhouse heater over the winter, is to line the greenhouse with bubble wrap as this is the best way to insulate a greenhouse, best of all, it’s a very easy process with the right clips and materials.

Why insulate a greenhouse?

If you have a greenhouse it’s important to properly insulate it over winter so that heats get in and light is allowed through. One of the best ways to insulate a greenhouse is to add a layer of bubble wrap as it does both of these jobs in a cost-effective way.

We also recently written a guide on how to heat your greenhouse which you can read about here – (Link open in new window)

How to insulate the greenhouse using bubble wrap

How to insulate the greenhouse using bubble wrap

By adding a layer of bubble wrap in the winter you can give your plants extra protection by keeping the heat inside the greenhouse for longer and allowing light to filter through. Insulation using bubble wrap prevents draughts and will go a long way toward reducing your energy bills if you are using some form of heater during the coldest of winter.

 

You can see some of our recommended greenhouse heaters in this guide

Insulating bubble wrap can be purchased in one-metre increments at a time from garden centres and nurseries and even from online retailers such as Amazon.co.uk. So take the measurements of your greenhouse so that you know the size of the walls, ceilings, doors, and any other components you need to cover such that you are able to purchase the correct amount. It’s important to choose polythene bubble wrap as this is designed specifically for greenhouse use. It will last on average 3 years before you have to replace it and it is UV stabilized.

Buy bubble wrap from Amazon.co.uk here (opens in new window)

How to fasten bubble wrap to a greenhouse

Elixir Gardens ® Greenhouse Bubble Insulation Wrap 750mm Wide Triple Laminated UV Resistant + FREE Fix Clips

When you are ready to insulate your greenhouse you will need the bubble wrap, scissors, a measuring tape, and either small nails, drawing pins if you have a wooden greenhouse. Most greenhouses, especially metal greenhouses have ridges in the frame where you can insert plastic clips with washers through the bubble wrap and into the frame and twist. This is the easiest way to secure bubble wrap to your greenhouse as shown below

KINGLAKE 50 Pcs Greenhouse Twist Clips Shading Fixing Clips and 50 Pcs Washers for Aluminium Greenhouse Insulation Bubble Netting Shading Click on the picture to see greenhouse clips on Amazon.co.uk

 

Step 1

As mentioned, the first thing you will want to do is measure the size, ends, and roof of your greenhouse so that you purchase the correct amount of bubble wrap. Some garden centres if you know the size of the greenhouse will be able to tell you how much bubble wrap you need but it’s still best to double-check.

Step 2

Start with the sides of your greenhouse. Place the bubble wrap across the sides, fixing it to the frame of your greenhouse with the nails, drawing pins, or greenhouse clips if you can use them. You want to be sure that it is pulled tightly in place when you affix it along the frame.

Step 3

As you move to the roof, attach the bubble wrap to the ridge of the centre part of your greenhouse and then spread it down the bars until it meets with the side panels. Again use whatever material you have chosen to attach it to each of these points along the frame of the greenhouse.

Step 4

When you hit any windows or vents, cut and fasten the bubble wrap around them so that you can still open them. With that everything should be secured and complete, the process to be repeated again and approximately three years before needing to be replaced.

 

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