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What to Do if Snow Lands on Your Greenhouse

Winter weather can be tough on greenhouses, especially when snow starts piling up. If yours is covered, this guide will show you the simplest method to clear. We’ll also answer some frequently asked questions and tips along the way, so read on!

What’s the Easiest Way to Remove Snow from a Greenhouse?

A greenhouse with corrugated plastic panels covered in snow.

(Image Credit: Flickr)

The best way to go about it is to sweep it off with a broom if the snow is light. A roof rake or a window cleaning pole with a telescopic handle is a better option for heavier snow. It’s convenient, to add, as you can pull the snow off without climbing or putting pressure on the greenhouse. Just don’t forget to clear around the edges to stop it piling back up.

Another method is to melt the snow, but this works more as a preventive measure. What you do is lay an energy blanket over your greenhouse and turn the heat up before the storm arrives. This will warm the glazing and melt the snow on contact.

You can also expect snow to slide towards your greenhouse gutter. Placing heat pipes, at least 18 inches long, under the gutter can help.

Both techniques work on wooden greenhouses and metal greenhouses. Be cautious when placing the blanket, though, so it doesn’t come into direct contact with any flammable surfaces. Always follow the manufacturer’s instructions for safe use.

Can Snow Damage My Greenhouse?

A greenhouse blanketed in snow, with snow accumulating on the roof.

(Image Credit: Flickr)

Yes, snow can damage your greenhouses, especially if it builds up too much. The weight can put pressure on the structure, cracking the panels or bending the metal or plastic sheeting frame. Heavy snow can also block sunlight, which isn’t great for your plants. And if the snow melts and refreezes, it could cause water damage or freeze parts of the greenhouse.

Don’t wait for the snow to pile up—if you can, get out and clear as much as possible. The longer the snow stays, the more likely it is to block sunlight and warmth from reaching your plants. Along with clearing the snow around the structure, our guide offers more tips on ‘H​​ow to Keep a Greenhouse Warm in Winter’.

Keep an eye on the greenhouse vents, too, so they can work properly when the conditions improve. Keep them sealed during the storm to keep warmth inside.

Which Greenhouses Offer Protection from Snow?

BillyOh 4000 Lincoln Wooden Polycarbonate Greenhouse with Roof Vent
BillyOh 4000 Lincoln Wooden Polycarbonate Greenhouse with Roof Vent

Greenhouses with polycarbonate panels are best for withstanding snow. The double or triple-wall construction of polycarbonate greenhouses provides extra strength and insulation, making them more resistant to snow load.

The BillyOh Lincoln is a great example of a greenhouse with polycarbonate glazing, which not only lets in a good amount of sunlight but also provides excellent heat retention and insulation. Its tongue and groove cladding are a bonus, creating a tight seal that helps reduce water ingress during snowstorms.

Steel and aluminium-framed greenhouses, like the BillyOh Rosette, are also strong enough to support the weight of snow. These materials also resist rust – an excellent feature in such weather conditions.

Keep in mind, though, the overall greenhouse’s snow resistance still depends on the frame thickness and glazing quality.

Round-up

Pushing the snow off with a broom or rake does the job, but steer clear of spraying it with a hose, as it could freeze. Once you’ve cleared it, drape a heating blanket over the structure to save yourself the hassle next time it snows.

If you’re thinking of replacing your old one, consider the materials we’ve mentioned for a better alternative. Not only do they handle snow, but they’ll stand up to other harsh weather—just don’t forget to keep on top of the maintenance!

Up next on your reading list: How to Clean a Greenhouse – Interior and Exterior