Dormer windows project vertically from a sloped roof and are commonly used to bring light into attics. They are useful not only for airing and brightening the space but also for adding a unique charm to the exterior design of the home.

Pros:

• Increase available space indoors
• Additional opening
• Improves the exterior look

Cons:

• Difficult to install
• High maintenance and cost
• Are prone to leakage