Why Does Your House Get So Hot? How to Cool It Efficiently & Save Energy

MEDIA CENTER

Jul 2nd, 2025

Why Does Your House Get So Hot? How to Cool It Efficiently & Save Energy

Do you love summer but find yourself uncomfortably hot at home? You’re not alone. As heatwaves become increasingly frequent and intense, keeping indoor spaces cool has become a significant challenge. Don’t worry—understanding why your home overheats and mastering effective cooling strategies can help you create a comfortable and energy-efficient summer haven!

Why Does Your House Turn into a Sauna?

Sustainable living often emphasizes well-insulated, airtight construction—great for winter warmth. However, in spring, summer, and fall, especially on sunny days, this advantage becomes a drawback. Heat entering through large windows gets trapped inside. Our desire for abundant natural light often leads to extensive use of glass, which further intensifies this problem. During prolonged heatwaves, heat accumulates relentlessly, turning your home into an unpleasant “sauna.”

What’s the Ideal Comfortable Room Temperature?

Most people find temperatures between 19-22°C (66-72°F) comfortable, though individual preferences vary. Bedrooms deserve special attention:

Bedrooms: A slightly cooler temperature of 14-16°C (57-61°F) is ideal for restful sleep. Keeping bedrooms cool is crucial.

Children’s Rooms: Young children are more sensitive to overheating.

Babies under 2 months: Ideal room temperature is around 20°C (68°F).

Babies over 3 months: Recommended temperature is 15-18°C (59-64°F).

Core Principle: Prevention is Better Than Cure! Once heat infiltrates and builds up inside a well-sealed home, expelling it becomes extremely difficult. Therefore, the key is stopping the heat before it enters.

The Cooling Powerhouse: Efficient External Shading

The most effective solution to block direct sunlight through windows is external shading systems! Their principle and benefits far surpass internal solutions like curtains or blinds:

Why is External Shading Superior?

Systems installed outside the window (like shutters, awnings, or roller blinds) act before heat touches the glass:

Reflecting most solar radiant heat.

Absorbing a large portion of the remaining heat.

This keeps the space behind the shading significantly cooler and more pleasant, even during intense heat.

In contrast, internal shading (curtains, blinds) blocks some light and heat, but only after the heat has already passed through the glass and entered the room, making its cooling effect much less efficient.

Versatile Applications for External Shading:

Standard Windows: Adding or integrating external shutters/roller blinds is a smart investment in comfort.

Gazebos/Sunrooms: Install fabric roller blinds or louvered shutters to enjoy these spaces comfortably even in peak summer.

Balconies: Wind-resistant external roller blinds provide shade, sun protection, and privacy, making your balcony usable in any weather.

Skylights: Customized skylight shading solutions tackle the problem of winter warmth turning into summer greenhouse heat.

Glass Facades: Modern, minimalist external shading systems integrate seamlessly with large expanses of glass, effectively controlling heat gain without sacrificing light.

Smart Monitoring for Effortless Comfort

Want to know your home’s temperature anytime, anywhere? Smart climate control systems offer 24/7 monitoring of your indoor environment, displaying conditions intuitively via icons or color codes. You can even remotely control external shading devices (like lowering blinds before you leave work), ensuring a cool welcome when you arrive home.

Energy Savings: A Win-Win Benefit

With rising energy costs, external shading systems offer significant energy and cost savings:

Winter: Retract the shading to harness free solar heat, naturally warming your home and reducing heating demands.

Summer: By effectively blocking heat entry, you can drastically reduce or even eliminate the need for air conditioning, slashing cooling energy consumption.

Understanding the causes of overheating, setting healthy temperature goals, and implementing efficient external shading as your core cooling strategy are key to conquering summer heat. This approach not only creates a cool, comfortable sanctuary for your family but also delivers substantial energy savings by minimizing reliance on AC, fostering a more environmentally friendly and economical home. Choose the right external shading solution for your house, beat the heatwave, and enjoy a comfortable summer!