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Earlybird delivery discount: Check out reductions available on this page. Take advantage now.

Earlybird delivery discount: Check out reductions available on this page. Take advantage now.

In the UK we are blessed with ever-changing weather and sometimes we even get treated to hot temperatures in the spring and summer! (Emphasis on sometimes, at the time of writing this it’s been raining for around a week solid!)

This is something to consider if you want a summer house as like any external structure, they can get hot during the warmer seasons. However, we are not talking about the sometimes baking and oppressive heat you are subject to inside a conservatory!

No, summer houses are far more manageable and can be incredibly pleasant in warmer temperatures providing you understand how to manage the heat, and this is what we discuss below.

How to Keep Your Summer House Cool During Summer


So do summer houses get hot? Yes, they can. They are an external structure in your garden and in most instances, all four sides and the ceiling are exposed to the sun. As a result, temperatures can build up more compared to within your house.

However, this is no cause for concern. There are several key factors that I explain below that will help keep your summer house cool during the spring and summer and these include things like insulation, ventilation, and shading.

Proper Insulation

Most people think that insulation is only meant to help keep a building warm when in fact it works both ways. Insulation essentially acts as a barrier to prevent heat transfer and this applies from cold to hot, and hot to cold.

Therefore, if your summer house is properly insulated in the walls, floor, and ceiling, you should be able to regulate temperatures easily. It will effectively prevent excess hot air from entering the summer house and stop it from becoming too hot.

We have a fantastic range of insulated summer houses that you can comfortably use all year round and the great thing about insulation is that it works in all weather conditions – hot or cold. Floor insulation prevents excess heat from transferring through the ground while roof and ceiling insulation prevents excess hot air from entering.

Ventilation

Ventilation is another key factor and in a summer house, this ensures a constant flow of air to maintain temperatures and stop hot air from building up.

The most basic form of ventilation you can have in your summer house is small air vents. These are usually made from metal and look similar to your car air vents on your dashboard. They allow for a small but constant flow of air to regulate temperatures.

Other ventilation for insulated summer houses is achieved via doors and windows. We all know the drill – when it gets hot, what do we do? We open our doors and windows to let air circulate. This is exactly the same for a summer house and can greatly help keep temperatures down.

Shades and Curtains

With estimated average summer temperatures of 15-25 degrees Celsius, shading is also paramount for your summer house. Direct sunlight is a surefire way to increase temperatures so you want to create shaded areas and barriers for the sunlight to hit or reflect off.

Simple additions to your summer house like curtains or blinds can help immensely with the battle against sunlight and stop it from pouring in and heating up the structure’s interior.

I understand that it’s a shame to block out the glorious sunlight, but if you want to regulate temperatures and stop your summer house from becoming too hot then blinds and/or curtains are a must-have accessory.

When you choose your curtains make sure that you choose reflective colours that will simply reflect sunlight away from your summer house.

Roofing

The roofing is also a prime area of your summer house where heat can build up. You can just imagine the sunlight pounding down on the roof during the warmer months. This heat has to go somewhere and it’s typically transferred into your summer house interior!

As a result, the roofing should ideally have some type of reflective covering so that the sunlight simply bounces off as opposed to being absorbed internally. Our summer houses all have high-quality roofing as standard and when combined with ceiling insulation, you can prevent heat build-up from direct sunlight.

1st Choice Leisure Buildings is Here to Help!

Don’t worry – your summer house won’t become an oppressive oven during warmer temperatures. Instead, with proper ventilation, insulation, and shading, it can become a pleasant oasis – somewhere you can go to avoid the heat and relax without feeling drained.

If this sounds ideal, 1st Choice Leisure Buildings has an excellent range of premium summer houses available. From our Platinum Apex Fleet to our Diamond Washington Classic, there is a summer house design for everyone so why not check out our selection or download a brochure today?

Frequently Asked Questions (FAQ) Why Is My Summerhouse So Hot?

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  • Are Summer Houses Warm In Winter?

    Summer houses are typically not well-insulated for winter conditions, resulting in poor heat retention and without proper insulation, heating sources will be cold to utilise. You may need to implement additional heating solutions such as space heaters or electric blankets to stay warm in a summer house during the winter. Consideration should be given to the construction and insulation of the summer house to ensure adequate warmth during colder seasons. Or consider the Platinum summer buildings, which can be insulated for all year-round use.
  • How Do You Keep A Summerhouse Cool?

    To keep a summerhouse cool, use light-coloured curtains on windows to reflect sunlight, install ceiling fans to improve air circulation, and consider adding shade-providing trees or awnings outside. Additionally, a dehumidifier can reduce moisture levels, and an air conditioning unit should be considered for more effective cooling. Regularly maintain your cooling systems to ensure optimal performance during the hot summer months.

  • How To Keep Heat Out Of Summer House?

    To reduce heat in a summer house, install reflective window film on all windows to deflect sunlight. Next, use light-coloured curtains or shades to block out additional heat from entering. Additionally, insulate the attic and walls to maintain a cool temperature indoors. Consider planting trees or installing awnings outside windows to provide natural shade. Finally, fans or air conditioning should be used strategically to circulate cool air and maintain a comfortable living environment during hot summer days.
  • Why Is My Summer House So Hot?

    The interior of your summer house is sweltering due to a combination of factors, primarily inadequate insulation, improper ventilation, and direct sunlight exposure. Proper insulation is necessary to regulate the indoor temperature effectively, allowing heat to infiltrate and accumulate throughout the day. Insufficient ventilation inhibits airflow, preventing heat from escaping and circulating to maintain a cooler environment. Additionally, the direct sunlight exposure through windows and doors intensifies the heat indoors, creating a greenhouse effect that further elevates the temperature. Addressing these issues through improved insulation, enhanced ventilation, and strategic shading can significantly reduce the heat levels within your summer house.

About Author:

Robin Antill is an established authority in the field of quality garden building manufacturing, boasting over four decades of experience. Having founded Titan Garden Buildings in 1979, he demonstrated a commitment to excellence from the outset by moving away from subpar materials and embarking on crafting buildings of superior quality.


His lineage of craftsmanship, traced back to his father and grandfather's business in Cleethorpes, underscores his dedication to quality and customer satisfaction. Robin's son, Craig, who joined the business in 1990, brings additional expertise, having honed his skills at Guildford College in joinery.


Together, they elevated Titan Garden Buildings, which eventually evolved into 1st Choice Leisure Buildings. Their enduring focus on premium materials, top-notch manufacturing, and unparalleled customer service, along with Craig's digital acumen in creating the company's online presence, showcase their expertise and reliability in the industry.


Robin’s expertise was featured in Realtor.com, Homes&Gardens, The London Economic, and dozens other publications.


Woking Show Site
1st Choice Leisure Buildings
Woking Garden Buildings Show Site
Sutton Green Garden Centre,
Whitmoor Ln, Sutton Green,
Guildford,
GU4 7QA
Phone 01483 237550