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How to protect your greenhouse against summer heat

In recent years, we have increasingly faced warm summer months in Belgium. Temperatures can easily rise to 25 to 30°C, which can have consequences for the plants in your greenhouse. Excessive heat can cause your plants to dry out or burn. In this article, you will read how you can combat this heat.

Shade cloth

The best way to protect your plants from the sun’s heat is to apply a shade cloth. This solution requires some investment, but it is certainly worth it. A shade cloth significantly blocks intense sunlight, ensuring your plants are well-protected from the heat.

You can find these cloths in DIY stores, garden centres, or at greenhouse distributors.

Whitewashing windows

A more budget-friendly option is whitewashing the roof or windows of your greenhouse. This can be done simply by painting them with a mixture of lime and water. This layer filters the sunlight, preventing your greenhouse from heating up as quickly.

White sheets or covers

With a little creativity, you can achieve a lot while saving money. For instance, you can cover the roof or windows of your greenhouse with white sheets, covers, or another type of covering. The white colour of the covering ensures that the sun is optimally reflected.

Ventilation

The simplest way to combat heat in your greenhouse is to open the windows and doors. This allows for better air circulation and ensures that warm air is vented outside.

Ask our experts for advice

Do you have any further questions about building or protecting a garden greenhouse? Our dealers are experts in their field and are always ready to advise you. You can easily find your nearest point of sale on our dealer page.

Frequently Asked Questions

You benefit from the following warranty periods:

  • 10 years on the quality and alloy of the aluminium
  • 10 years on the paint finish (powder coating) in case of delamination, peeling, flaking, corrosion, chalking, discolouration and loss of gloss where the pre-defined tolerances are exceeded, in accordance with the Qualicoat or Qualinod specifications
  • 10 years on the adhesion and tension of the glazing rubbers
  • 10 years on production defects in the glass
  • 5 years on PVC components and their UV resistance

The following damage is not covered by the warranty:

  • Damage caused by failure to follow the installation and operating instructions
  • Damage resulting from use other than the intended normal use
  • Damage due to lack of maintenance
  • Normal wear and tear
  • Materials and items used at the customer’s specific request
  • Structures not part of the Janssens range but manufactured at the express request of the customer or distributor

Our greenhouses are intended for growing vegetables, fruit, flowers, etc. The following characteristics are inherent and vary depending on the situation, environment and use:

  • Condensation on glass or profiles
  • Draughts at doors, windows or gaps
  • Roof windows, roof connections and gutters are not 100% watertight
  • No waterproof barrier beneath the foundation frame

Regulations regarding the installation of greenhouses and outbuildings vary by region. Always check with your local planning authority before purchasing a greenhouse.

Do you have any questions?

Contact your local dealer
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