Definition of Dormer
A dormer is a structural element that extends vertically beyond the plane of a sloped roof, generally containing a window. Dormers are used to create usable space in the roof area, adding natural light and ventilation to what might otherwise be an attic or just space devoid of functionality. A dormer window is commonly referred to as just a “dormer.”
Types of Dormers
- Gable Dormer: Characterized by a roof that peaks at the ridgeline and slopes down to each side, resembling a small-scale gable roof.
- Shed Dormer: Simple, flat roof dormer that adds space by extending a portion of the roof upward before sloping it back down.
- Hip Dormer: A dormer with a roof that slopes back on all three sides, blending softly with the larger roof structure.
- Eyebrow Dormer: Curved dormers that resemble a flattened eyebrow, used to add light without extensive space.
Examples
Residential Property
A family home might incorporate a gable dormer in the attic to convert it into a functional bedroom or study space. The additional headroom created by the dormer allows for enhanced usability and comfort.
Historical Buildings
A historical building may feature multiple eyebrow dormers to maintain an aesthetic harmony while providing necessary light to upper-level rooms.
Frequently Asked Questions (FAQs)
What purpose does a dormer serve?
Dormers are primarily used to increase the usable space within a home’s attic or upper floors, while also adding natural light and ventilation to these areas.
Are dormers costly to install?
The cost of installing a dormer can vary greatly depending on the type of dormer, the size, and the complexity of the construction. Simple shed dormers can be less expensive than elaborate eyebrow or hip dormers.
Can dormers be added to any type of roof?
Most sloping roofs can accommodate dormers. The specific design of the dormer should match the architectural style and constraints of the existing roof structure.
Does adding a dormer add value to a home?
Yes, adding dormers can increase a home’s market value by adding functional space, aesthetic appeal, and improving overall curb appeal.
Related Terms with Definitions
- Attic Conversion: The process of converting unused attic space into functional rooms, often involves adding dormers for more space and light.
- Roofline: The outline of the roof’s configuration which can be altered or enhanced by adding dormers.
- Eaves: The lower edges of the roof which often end beneath shouldered dormers, providing protection against rainwater.
- Gable: The triangular portion of the wall between the edges of a dual-pitched roof, where a gable dormer may be installed.
Online Resources
- Houzz: Dormer Design Ideas
- This Old House: Dormer Installation Guide
- National Trust for Historic Preservation: Dormer Windows
References
- Smith, L., & Hawes, C. (2019). Understanding Dormer Windows: Comprehensive Guide. New York: Architecture Publishing.
- Designing Southern Architecture. (2020). Retrieved from ArchDaily.
Suggested Books for Further Studies
- Ching, F. D. K. (2014). Building Construction Illustrated. John Wiley & Sons.
- Jacobson, M. (2003). Dormers: Design, Construction & Style. Taunton Press.
- Busse, T. (2016). Elements of Style: Dormer Windows. Phaidon Press.
