**Casement & Single-Hung Windows FAQ**

1. **How does a casement window compare to a single-hung window?**
The key difference between a **casement window** and a **single-hung window** lies in their operation. **Casement windows** are hinged at the side and open outward like a door, typically with a crank or handle. **Single-hung windows**, on the other hand, have one fixed sash at the top and a movable sash at the bottom, which slides up and down. Casement windows tend to offer better ventilation and energy efficiency, while single-hung windows are often easier to clean and maintain.

2. **What is an aluminum single-hung window?**
An **aluminum single-hung window** is a single-hung window with an aluminum frame. These windows are popular for their strength, durability, and low maintenance requirements. Aluminum frames are resistant to weather and corrosion, making them suitable for areas with harsh conditions. However, they may not offer the same insulation as vinyl or wooden frames.

3. **What is the difference between single-hung and double-hung windows?**
The main difference between **single-hung** and **double-hung windows** is the operation of the sashes. **Single-hung windows** have one fixed sash (usually the top) and one movable sash (the bottom), which slides up and down. **Double-hung windows** have two movable sashes, allowing both the top and bottom parts of the window to slide up or down. Double-hung windows offer more flexibility in ventilation and are often easier to clean since both sashes tilt inward.

4. **Are single-hung aluminum windows energy-efficient?**
**Single-hung aluminum windows** are generally not as energy-efficient as vinyl or wood-framed windows. Aluminum is a good conductor of heat and cold, which can lead to higher energy costs due to heat transfer. However, aluminum windows with thermal breaks or insulated glass options can improve energy efficiency.

5. **What is a single-hung egress window?**
A **single-hung egress window** is designed to meet building code requirements for emergency escape and rescue openings. The **single-hung window** is equipped with a movable bottom sash, allowing it to open wide enough to provide an escape route in case of an emergency. Egress windows are typically required in bedrooms and basements for safety.

6. **How secure are single-hung window locks?**
**Single-hung window locks** provide basic security by locking the bottom movable sash into place. While they are generally secure, additional locking mechanisms like sash bolts or keyed locks can improve security. It is always a good idea to use extra locks, especially on ground-floor windows or in homes where security is a concern.

7. **How do you clean a single-hung window?**
Cleaning a **single-hung window** involves removing dirt and debris from both the interior and exterior sides of the window. First, lift the bottom sash and tilt it inward if possible. Use a microfiber cloth, sponge, or soft brush with soapy water to clean the glass, frame, and sash. Be careful not to damage any weatherstripping or seals. For hard-to-reach areas, a window cleaning tool with an extended pole can be helpful.

8. **Are aluminum single-hung windows durable?**
Yes, **aluminum single-hung windows** are known for their **durability**. Aluminum frames are strong and resistant to the elements, making them a good choice for areas with extreme weather conditions. They are less prone to warping, cracking, or rotting compared to wood, although they may require periodic maintenance to keep the finish looking good and prevent corrosion.