Single hung windows have a fixed top sash and a movable bottom sash, while double hung windows allow both sashes to open for better airflow and easier cleaning. The former is more energy-efficient and affordable, while the latter offers more ventilation control.
Single and double-hung windows are two popular types of vertically sliding windows commonly found in both modern and traditional home styles in Canada. Although they appear similar, they operate differently and come with unique advantages.
Single hung windows have one movable sash, tend to cost less, and require less maintenance. On the other hand, double hung windows allow you to open both sashes for improved airflow and easier cleaning. However, the added flexibility usually comes with a higher price tag.
When comparing double hung vs. single hung windows, the key differences lie in ventilation, access, and long-term convenience rather than aesthetics. Here’s what Canadian homeowners need to know before choosing.
What Is a Single Hung Window?
A single hung window is a vertically sliding window with two sashes. It has a fixed top sash, so only the bottom sash can be moved up and down for ventilation control. You’ll often find these window styles in basements or ground-level rooms, where ventilation is needed but full access isn’t a priority. They bring in fresh air while keeping a simple, space-saving design.
Single hung windows offer the following advantages:
- Energy efficiency: Since only one sash opens, they’re more energy efficient, less prone to air leakage, and easier to weatherproof with caulking.
- Improved ventilation: They provide better ventilation for small spaces, such as bathrooms or basements, without requiring a whole opening.
- Cost-effective: It’s roughly 10 to 20% less expensive to get single hung replacement windows over double hung windows.
- Easy upkeep: Their simple mechanism requires fewer parts, making them easier and cheaper to maintain over time.
Although affordable and practical, there are also other factors to consider before installing single hung windows. Here are some disadvantages:
- Ideal for lower floors: Single hung windows are best suited for ground floors. Cleaning the fixed upper sash from the outside on higher levels can be more complicated.
- Less flexibility: You have less airflow control than double hung windows since only the bottom sash is movable.
Not egress-friendly: They may not meet egress requirements (National Building Code of Canada) in bedrooms or rooms that need larger openings.
What Is a Double Hung Window?
Double hung windows feature two operable sashes. You can move them up and down to improve air circulation, and tilt inwards to clean while standing indoors. They’re generally found on upper floors where natural light, enhanced ventilation, and accessibility are crucial.
Here are some reasons why homeowners use traditional and modern double hung windows in their living spaces:
- Better Ventilation Control: The operable sashes allow the air to come through the top and/or bottom parts of the window. You can even align the two sashes somewhere in the middle to create a recirculating effect.
- Easier to Clean External Panels: Ideal for upper stories, as both sashes can be safely cleaned from the inside.
- Accessible Components: Built-in tilt latches make it easier to maintain hard-to-reach windows.
- Egress-Friendly for Bedrooms: Bedrooms often meet egress requirements, depending on size and clearance.
- Child- and Pet-Safe: You can keep the lower half closed and the top half open to keep your babies safe without sacrificing privacy and ventilation.
Although having two movable sashes creates a cooler, more ventilated environment, there are some downsides. Here’s why you might consider other window styles:
- Higher Upfront Cost: They’re typically more expensive than single hung windows that have fewer moving parts and less functionality.
- More Parts to Maintain: Extra hardware can lead to slightly more maintenance and potential for wear over time.
- Slightly Less Energy Efficient: With two operable sashes, there’s a greater chance of air leakage compared to fixed-top single hung styles.
Double Hung vs Single Hung Windows: What Are the Key Differences?
FAQs About the Difference Between Single and Double Hung Windows
In Summary
- Single hung windows have one movable sash and are best for lower floors, basements, and bathrooms where simple airflow and lower costs matter.
- Double hung windows offer two movable sashes for better ventilation, easier cleaning, and improved safety.
- Both styles look similar, but their operational differences impact airflow, energy efficiency, and maintenance needs.
- Single hung windows are more budget-friendly, while double hung windows are more likely to meet egress requirements.
- Consider your space before choosing. Think about which floors need easier cleaning access, how much airflow you want, and how much maintenance you’re willing to handle.
Get the Best Deals on Premium, High-Quality Sliding Windows at Clera!
Are you still on the fence between getting a single hung vs double hung window? Reach out to us at Clera Windows + Doors. Our local specialists can help you choose the best fit based on your budget, style, and available space. We’ll also hook you up with high-quality, Energy Star-certified, Canadian-made windows at the lowest factory prices.
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