How To Keep Your Hobby Greenhouse From Overheating

Food enthusiasts, who own greenhouses in their backyard may ask: “How to keep your hobby greenhouse from overheating?” Now that the summer has finally ended and the autumn has arrived, the after-impact of the sun may still be present. Managing this can be easier said than done, so finding your way is important. 

Keeping The Greenhouse From Overheating

In order to keep the greenhouse from overheating, the rule of thumb is proper ventilation. Here are the steps on how you can properly ventilate the greenhouse, so it does not overheat.

How To Keep Your Hobby Greenhouse From Overheating

One of the right ways to conquer heat is to offer plants with a good flow of air. Side vents, roof vents, and louvered ventilation, as well as the greenhouse door, should be able to provide you with the necessary movement of the air to cool down your overheated plants.

The area of your roof vent shall offer you the complete change in the air every two minutes. The proportionality of the roof vents is considered a luxury for many greenhouses, but they can open up to your doors and side vents, too, enabling the air to move sufficiently.

Remember, temperatures over 27 degrees Celsius can start to cause damage to your plants, so having your thermometer ready will enable you to monitor your situation. In sunny atmospheres, you can proceed as early as you can to open vents and doors, keeping them open on warmer nights. You may also prevent intruders by using nets that allow nothing but pollinators through.

Can a Greenhouse Be Too Hot?

Anything over 32 degrees Celsius may be very hot for the greenhouse already. Even the toughest crops and vegetables, such as tomatoes that do not do well over this temperature, may find it difficult. 

Thus, it is important to understand the right temperature range for the plants since the greenhouse may be too hot and might damage your plants. 

The ideal temperature may likewise vary from a plant to the other. Therefore, it is important to note the ideal temperature range for the crops since greenhouses too hot may damage the plants and may also shorten your growing season, thereby decreasing your crop production. 

Worry not, because there are more details that you must know about this.

Temperature And Location

Does your location affect the temperature of the greenhouse? Absolutely. People in hotter climates must be extra aware of how hot their greenhouses can get. However, people who own greenhouses in Alaska state, for instance, may have different situations. Thus, knowing the pointers on how to keep your hobby greenhouse from overheating. 

Monitoring The Greenhouse Temperature

There are tools that you may want to utilize. The temperature sensor must be protected from the sun and lights while they are in the greenhouse. Otherwise, you may get the device to predict the temperature inaccurately. 

To work on the equipment, it must be placed alongside a constant stream of air. To accomplish this, one of the ideal solutions is to ensure the thermocouple is located in a box reflective of their color. 

What Temperature Should I Keep My Greenhouse?

Take note that the ideal temperature within your greenhouse should be a maximum of 29 to 30 degrees Celsius only. Thus, the first lesson when keeping your greenhouse from overheating is to keep its internal temperature stable.

Greenhouses are there to source out the energy from the rays of the sun and heat the air internally, though there are others who may decide to enable heat sources powered by electric and gas heaters. Similar to automobiles, you can heat up the interior of your buildings at up to 100 degrees Fahrenheit on warmer days and regulate temperatures, so you prevent the killing of the plants.

How Do You Keep Your Hobby Greenhouse From Overheating?

First, what is the hobby greenhouse? Let us take a look at the features of the hobby greenhouse with ventilation. Greenhouses of this kind have vents that are upgraded from your simpler hobby greenhouse, a step toward your professionals and commercial greenhouses.

And, to keep your hobby greenhouse from overheating, there are steps to take a look at. According to data on SF Gate, the way is to monitor the greenhouse temperature and keep the greenhouse cooled down. 

There are quick and cost-effective ways to shade paints and filter out the strength of the sunlight. Bring in additional layers as the summer develops prior to brushing off these as they cool back down. Shade paint for suitability for the greenhouses, for example, those with timber not painted, which is where the blinds and the netting will originate.

Moreover, among the best ways to conquer heat in the greenhouse is to offer plants with a good-natured flowing air. One of the ideal ways to take it further is to utilize ventilation, side vents, or roof vents, with the greenhouse doors creating the movement of air that can cool down your overheated plants and crops.


How to keep your hobby greenhouse from overheating involves following certain steps. It takes time and commitment to garden right and to produce the crops you are looking for. Happy gardening!

1 thought on “How To Keep Your Hobby Greenhouse From Overheating”

  1. Hello. i have a question about thermocouple:
    what is difference between industrial thermocouple and simple thermocouple?

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