What Is A Gothic Greenhouse? (Expert Answer)

The Gothic greenhouse is a type of greenhouse made from structural insulated panels (SIPs). It’s often used for year-round growing, but it can be built to serve as a cold frame or sunroom in temperate climates. 

The Gothic greenhouse has all the benefits of traditional greenhouses, including low-maintenance materials and architectural details but with even better insulation properties. 

If you’re thinking about building your own greenhouse or are shopping for one, look into this stylish new design!

Greenhouses 101: Everything You Need to Know
Gothic greenhouses feature a unique arch-shaped roof design.
The arch design provides increased height and improved snow shedding capabilities.
Gothic greenhouses offer better light transmission and a more spacious interior.
They provide better air circulation and increased headroom for tall plants.
Gothic greenhouses are energy-efficient and aesthetically pleasing.
They are suitable for various types of plants.
Proper maintenance includes cleaning, monitoring temperature and humidity, and ensuring ventilation.
Gothic greenhouses are designed to withstand strong winds and heavy snow loads.
Installation guidelines and structural reinforcements are important for severe weather conditions.

Gothic Arches

Gothic arches are the most common type of arch. They are found in Gothic architecture, which is named after the French word for “Gothic” and was popular from 1150 to 1500. 

The style was revived during the 19th century when it became known as Victorian architecture.

The name is derived from its pointed archways, with their steeply pitched roofs, buttresses and stained glass windows. 

In a greenhouse these features can be mimicked by using gothic arches to support the weight of your greenhouse roof and create an open space that allows more light into your garden.

When it comes to keeping your greenhouse warm, it’s essential to implement effective strategies. Our comprehensive guide on how to keep your greenhouse warm provides valuable tips and techniques to maintain optimal temperature levels, ensuring the health and productivity of your plants.

Clear Spanning

Clear spanning is when the greenhouse is free of internal supports, which allows for a large open space. 

Clear spanning can be achieved by using a single span or double span, depending on your needs and available space. 

This is a great feature for commercial growers who want the flexibility to grow tall plants without having to worry about obstructions inside their greenhouse.

Natural Ventilation

Although mechanical ventilation may be the best option for some greenhouses, natural ventilation is still the most common type of ventilation. 

Natural ventilation is the use of air movement through openings to remove excess heat and moisture from a greenhouse. The two main types of natural systems are passive and active.

Active systems use fans or pumps to force fresh outside air into the greenhouse or exhaust warm moist air out through louvered windows or ridge vents (typically at the top). Passive systems rely on wind pressure differences between inside and outside of your greenhouse to create airflow.

Passive stack effect occurs when warm air rises from your soil as cooler night time temperatures drop below ground level — pulling in cool air from above! 

This effect creates convection currents that can be harnessed using an exhaust fan mounted on top of your structure (or just about anywhere else) with something like clear plastic sheeting draped over it – no need for electricity here!

Reinforced Roof

The roof of a gothic greenhouse is made from steel or aluminum. It is reinforced with steel girders that are designed to withstand heavy snow loads and strong winds.

Waterproofing is a crucial aspect of greenhouse maintenance. Discover the best methods and products for waterproofing your greenhouse with our helpful guide. Learn more about how to waterproof a greenhouse and safeguard your plants from water damage and excessive moisture.

Gable Roof

A gable roof is a type of roof where all sides slope downwards to the walls. The gable roof is the most common type of roof, according to the American Society of Architectural Engineers. It has two slopes, one on each side.

Spacious Interior

A Gothic greenhouse is a tall, narrow building with a high ceiling. The interior space of the greenhouse is open and airy, allowing you to grow plants in the sunniest areas of your home or garden. 

Because they use reflectors to increase light levels and trap heat inside, these types of greenhouses also tend to be warmer than other styles.

FeatureModel AModel BModel C
Passenger Capacity576
Cargo Space (cu. ft.)304035
Legroom (front/rear)42 in / 38 in40 in / 36 in39 in / 37 in
Headroom (front/rear)39 in / 38 in38 in / 37 in40 in / 39 in
BrandBrand XBrand YBrand Z
Price Range$30,000-$35,000$35,000-$40,000$32,000-$37,000

Single Glazing

Single glazing is a type of double glazing with only one pane of glass. It is typically cheaper and lighter than double-glazed windows, but the lack of insulation can cause problems in colder climates. However, if you live in an area that experiences mild winters, then single glazing is your best bet for a cost-effective greenhouse window.

Single glazing does have some disadvantages as well: it’s less energy efficient than double glazing; much more susceptible to condensation; can be scratched or broken easily (particularly if you don’t use protective film); and may not perform well in high winds or storms (although this will depend largely on where you live). 

But overall, single-glazing has many advantages over double-glazing namely its lower cost and weight as well as being more energy efficient than standard windows.

Are you considering a greenhouse for your gardening needs? Lean-to greenhouses offer unique advantages and space-saving solutions. Dive into the world of lean-to greenhouses with our expert tips. Explore the benefits and considerations of lean-to greenhouses and make an informed decision for your gardening endeavors.

High Load Capacity

The load capacity of a greenhouse is a measure of how much weight it can support. The higher the load capacity, the stronger your greenhouse will be and the better it will be able to withstand bad weather and other potential hazards.

So what exactly does this mean? Well, if you’re interested in building your own Gothic Greenhouse (which you should be), then you’ll need to calculate your greenhouse’s load capacity so that you know whether or not it’s strong enough to support its glazing and other components. 

To do this, simply follow these steps:

  • Measure Your Glazing
  • Calculate Your Load Capacity
FeatureProduct AProduct BProduct C
Load Capacity500 kg800 kg1000 kg
Weight20 kg15 kg25 kg
Dimensions (LxWxH)120x80x40 cm100x70x35 cm110x90x45 cm

Low Maintenance Requirements

Because of their unique, low-maintenance design, gothic greenhouses are perfect for busy gardeners. 

There is no need for painting or staining due to the special UV-resistant glass that comes with a gothic greenhouse. 

You also won’t have to worry about cleaning or repairs as these structures are built with durable materials that can withstand years of use without wearing down. 

The same goes for replacement parts – you won’t need to replace anything on your gothic greenhouse because they’re designed to last a lifetime!

These shelters also come with an automatic ventilation system that ensures proper airflow throughout each room and prevents mold from forming on any plants within the greenhouse itself.

The right amount of light is crucial for the success of your greenhouse. Discover the optimal lighting requirements for a healthy growing environment. Our guide on how much light you need in a greenhouse provides valuable insights and tips to ensure your plants thrive in the ideal lighting conditions.

Energy-Efficient Greenhouse Glazings

There are several types of glazing that can be used in a Gothic greenhouse. Most companies will use one or more of the following:

Low-E glass is an excellent choice if you want to keep your greenhouse warm through the winter months. 

It’s made with a special coating that helps reduce heat loss and glare by letting some radiation pass through while reflecting others back into the structure where they can be absorbed by plants. The low-e coating also helps prevent condensation on windows and windowsills.

Double glazing is another popular choice because it uses two panes of glass separated by an inert gas like argon, krypton, or xenon which reduces heat loss significantly compared to single pane windows (it has been estimated that double pane windows retain up to 75% of their original insulating properties even after 50 years!). 

However, this type of glazing does not provide UV protection so if you want protection from harmful rays then you may need other types as well as this one!

Glazing TypeDescription
Double-Layer PolyethyleneLightweight and cost-effective option providing good insulation properties.
Polycarbonate PanelsDurable and versatile with high light transmission and excellent thermal insulation.
GlassTraditional and aesthetically pleasing choice offering high clarity and longevity. May require additional insulation.
ETFE FilmLightweight, highly transparent, and durable with superior light transmission and insulation properties.
Acrylic PanelsUV resistant and offers good thermal insulation. It is lightweight and shatter-resistant.
Polyethylene FilmBudget-friendly option with moderate insulation properties. Requires regular replacement.

Structural Insulated Panels (SIPs)

Structural insulated panels (SIPs) are a type of foam insulation that has been used in the construction of greenhouses. 

They’re lightweight, easy to transport and can be used to create a wide range of shapes and sizes.

SIPs have a number of advantages:

They provide excellent thermal insulation because they’re made from polystyrene foam which retains heat well. This means your greenhouse will be warmer in winter, especially if it’s open-fronted or without any walls at all.

Because they’re made from light materials like polystyrene foam, SIPs are much less likely than traditional bricks and mortar to crack under pressure – so you’ll find that your greenhouse is less likely to suffer from structural damage caused by windy weather conditions or heavy snowfall over winter months.

Protecting your greenhouse from wind is essential to maintain its structural integrity. Learn effective techniques for securing your greenhouse and preventing wind-related damage. Our comprehensive guide on how to secure a greenhouse from the wind offers practical tips and strategies to keep your greenhouse safe and stable.


The Gothic style is an architectural design that dates back to the Middle Ages. It features pointed arches, decorative moldings, and rib-like vaulting to give a sense of height and grandeur. In recent years, these features have been revived in greenhouses and other buildings thanks to their beautiful appearance as well as energy efficiency.

Further Reading

Gothic Arch Greenhouses Blog: Explore a wide range of articles and resources related to greenhouse gardening, construction, and maintenance. Stay updated with the latest trends and insights in the greenhouse industry.

Gothic Pro Greenhouses by GrowSpan: Discover the benefits and features of Gothic Pro Greenhouses, designed for professional growers. Learn more about the advanced technologies and customizable options available for your greenhouse needs.

Comparison of Greenhouse Frame Types: Dive into a comprehensive comparison of different greenhouse frame types, including gothic and other popular options. Gain valuable insights to help you make an informed decision when choosing the right frame for your greenhouse project.


How are gothic greenhouses different from other greenhouse types?

Gothic greenhouses feature a unique arch-shaped roof design that provides increased height and improved snow shedding capabilities. Unlike traditional flat or peaked roofs, gothic greenhouses offer better light transmission and a more spacious interior for optimal plant growth.

What are the advantages of using a gothic greenhouse?

Some advantages of gothic greenhouses include better air circulation, increased headroom for tall plants, improved energy efficiency, and enhanced aesthetics. The curved design of gothic greenhouses also provides additional structural strength, making them suitable for various weather conditions.

Are gothic greenhouses suitable for all types of plants?

Yes, gothic greenhouses can accommodate a wide range of plants. The ample vertical space and improved air circulation make them ideal for tall or vining plants. Additionally, the shape of the roof allows for better light diffusion, ensuring more even light distribution for different types of crops.

How do I maintain a gothic greenhouse?

Proper maintenance of a gothic greenhouse includes regular cleaning, checking for any signs of damage or wear, monitoring temperature and humidity levels, and ensuring proper ventilation. It’s also important to inspect the structural integrity of the greenhouse periodically and make any necessary repairs.

Can gothic greenhouses withstand strong winds and heavy snow loads?

Yes, gothic greenhouses are designed to withstand various weather conditions, including strong winds and heavy snow loads. The curved roof design helps with snow shedding, reducing the risk of excessive weight accumulation. However, it’s still important to follow proper installation guidelines and consider additional structural reinforcements in areas prone to severe weather.