Deciding between casement and double-hung windows for your home can be a difficult choice. Both window styles have unique advantages and disadvantages to consider before making a purchase. This comprehensive guide examines the key differences between casement and double-hung windows, providing the information you need to select the best option for your home.
Overview of Casement and Double-Hung Windows
Casement windows are hinged on one side and open outward, either to the left or right, in a swinging motion. The hinges can be on the side or top of the window frame. Casement windows come with a locking mechanism to keep the window securely closed.
Double-hung windows have an upper and lower sash that slide vertically in separate channels in the window frame. Both sashes can move up and down, allowing you to open the window from the top down or bottom up. The sashes lock into place at various points along the frame.
Both styles provide ventilation, sunlight, and views while enhancing the architecture and design of your home. But there are some key factors that differentiate these two classic window types.
Key Differences Between Casement and Double-Hung Windows
Ventilation
Casement windows excel at capturing breezes and circulating air. The outward swinging motion allows you to control and direct airflow as needed. Fully opened casement windows can funnel wind inside very effectively.
Double-hung windows offer more limited ventilation control since air flows straight into the opening. You can only modulate airflow by adjusting what portion of the sash you open. Still, double-hungs provide decent air circulation.
Views and Light
Casement windows give you expansive, unobstructed outward views and sunlight since the entire window surface area can open outward. The broad opening maximizes natural light entry into the room.
Double-hung windows have a narrower viewing and lighting area because you can only open a portion of the window at once. The divided sashes obstruct more of the glass surface than a fully opened casement window. However, double-hungs often have larger total glass surface areas which offsets this disadvantage.
Weatherproofing
Casement windows form a tight seal around the window pane and frame when closed, protecting well against drafts, moisture, and noise. The compression of the window against the weatherstripping when fully shut keeps the elements out.
Double-hung windows are inherently more prone to air leaks given their sliding function. Gaps can form over time, allowing cold drafts or humidity inside. Frequent maintenance is required to keep double-hung windows properly weatherstripped and sealed.
Opening Style
Casement windows need clear wall space to fully open outward, which is a consideration for interior furniture layouts. The crank mechanism provides easy and convenient single-handed operation. Screens and blinds can obstruct the swing radius.
Double-hung windows only need ceiling clearance above to open fully. The up and down sliding operation is smooth but generally requires use of two hands to open larger units. Lifts can automate this process for hard to reach windows.
Security
Casement windows offer maximum security given their tight seal and the fact that the window locks completely into the frame. Forced entry is nearly impossible on properly installed and locked casements.
Double-hung windows are inherently more vulnerable to intrusion since the sashes slide within channels. Extra locks can enhance security but double-hungs have more points of potential entry around the movable sashes.
Other Factors to Consider
Energy Efficiency
Both modern casement and double-hung windows can deliver excellent thermal performance with proper glazing and materials. Look for Energy Star ratings and low U-factors when comparing options. Casements may have a slight performance edge for some designs.
Costs
Casement windows are often more expensive than double-hungs due to their more complex hinge and locking mechanisms. However, energy efficient models of both styles cost more than basic versions. Consider lifetime energy savings when factoring window costs.
Material Options
Casements and double-hungs can both be ordered in vinyl, wood, aluminum, fiberglass, or composite materials. Think about durability, aesthetics, and maintenance needs based on climate and architectural style.
Window Sizes
Casement windows come in a wide range of custom sizes thanks to flexible hinge placement. Double-hung windows are more restricted on maximum size due to the weight of sliding glass. Consider your desired window dimensions when deciding.
Historic Fit
For historically styled homes, double-hung windows may provide a more seamless fit. Their traditional look complements certain architectural designs. Casements offer more modern open sight lines.
Key Recommendations
For maximized ventilation and views, casement windows are the optimal choice. If security and extreme weatherproofing are top priorities, casements also have advantages.
Double-hung windows integrate well historically and offer flexible partial opening options. They work well if wall space for outward opening is limited.
Ultimately, selecting casement versus double-hung windows depends on your priorities for the space, budget, and how they’ll complement your home’s architecture. Consider all key factors before deciding on the best option for your next window replacement or installation project. With some careful thought, you’ll end up with beautiful and functional windows you’ll enjoy for years to come.
Frequently Asked Questions
Which type of window is more energy efficient?
With proper glazing and materials, both modern casement and double-hung windows can deliver excellent energy efficiency. Casements may have a slight performance edge for some designs due to their tight seal when closed.
Do casement windows open more?
Casement windows open outward to a full 90 degrees, allowing for expansive views and maximum ventilation. Double-hung windows only open partially as the sashes slide up and down in the frame.
Are double hung windows out of style?
Double hung windows have remained popular for decades given their versatility, functionality, and historical architectural fit. While casements are trendier now, double-hungs are still used widely in both traditional and contemporary home designs.
Can you automate double hung windows?
Yes, there are lift systems available that automate the opening and closing of double-hung windows. This makes operation easier for hard to reach windows. The lifts allow remote or programmed operation.
Do casement windows swing open?
Yes, casement windows are hinged on one side and open outward in a swinging motion. This allows them to direct outside air inward and provides full views when open. The hinge side can be either the right or left.
Are casement windows better than sliding?
Casement windows are generally superior to sliding windows in terms of air sealing, weatherproofing, easy operation, and ventilation control. But sliding windows suit some spaces better based on window opening clearance needs.
Conclusion
When selecting new or replacement windows for your home, carefully compare the benefits of casements versus double-hungs. Key factors like ventilation, weatherproofing, views, security, and cost will influence which style ultimately suits your needs and priorities best. Consider both window types and consult with experts to make the optimal choice for aesthetically pleasing and functional windows.