We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What are the Best Tips for Greenhouse Insulation?

By Patrick Lynch
Updated May 16, 2024
Our promise to you
HomeQuestionsAnswered is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At HomeQuestionsAnswered, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Heating a greenhouse can be expensive, especially in winter. Insulation can save money by keeping the greenhouse at a constant temperature and is available in either bubble wrap or silver form. Among the best tips for the installation include digging a trench around the greenhouse and filling it with polystyrene sheets for the exterior. Inside the greenhouse, measure the walls and place the insulation on the walls with duct tape or a staple gun. One of the walls will need silver insulation to reflect sunlight into the greenhouse in winter.

Greenhouse insulation is available in rolls which are 4 feet (1.2 m) wide and can be purchased in most gardening centers. This insulation comes in the form of bubble wrap or reflective silver insulation. Its purpose is to keep the greenhouse temperature the same regardless of the weather.

To insulate a greenhouse from the outside, dig a trench around the perimeter of the greenhouse. Make sure that the trench is at least 2 feet (0.6 m) deep. It should be dug around all four sides.

In order to provide greenhouse insulation against the ground’s temperature, purchase sheets of polystyrene. Fill the trench with these sheets. Shovel gravel and dirt into the trench to keep the sheets in place. The polystyrene should ensure that the floor of the greenhouse stays at a reasonable temperature.

Go inside the greenhouse and start measuring the size of all four walls. This is to find out how much greenhouse insulation is needed in total. Make sure that the doors of the greenhouse are factored into these calculations because every square inch of its surface area must be insulated.

Once the measurements have been determined, cut the bubble wrap greenhouse insulation into sheets that will neatly fit the greenhouse walls. It is important to use additional insulation on window frames and broken seals. These are the areas which offer the greatest risk of heat escaping from the greenhouse.

Depending on the location of the greenhouse, a certain area will require more insulation in winter. For example, greenhouses in the U.S. need more insulation on the north wall. Whatever wall needs the most insulation should be dealt with last. Put the bubble wrap on the other three walls. Use staples to keep it in place on any wooden parts of the greenhouse; otherwise, try duct tape or even glue.

The final glasshouse wall requires silver insulation to ensure that sunlight is reflected back into the greenhouse. This is essential during the winter months. Install the silver greenhouse insulation in the same manner as the bubble wrap.

HomeQuestionsAnswered is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
HomeQuestionsAnswered, in your inbox

Our latest articles, guides, and more, delivered daily.

HomeQuestionsAnswered, in your inbox

Our latest articles, guides, and more, delivered daily.