What Is A Dormer?

A dormer is a roofed structure that projects vertically from the sloping roof of a building. [1] It typically includes a window. Dormers can add light and usable space in attic areas.

Dormers extend just beyond the pitched roof and can add depth and dimension to a home. You’ll find dormers in walk-in attics in older homes. In newer homes, you may see a false dormer. This is purely for decorative purposes and has no interior space. It can be strategically placed on a full-size top floor.

There are several types of dormers to choose from, depending on the desired look and functionality.

What Is A Dormer?

A dormer is an architectural feature, usually on residential homes, that projects vertically from a sloping roof. This roofed structure typically includes a window and comes in many different styles to serve various purposes, or in some cases, is strictly ornamental.

What Does a Dormer Look Like?

Picture a small structure that protrudes from a sloped roof, jutting outward. Most have windows for natural light but vary greatly in style, from the square and traditional style of the shed or gable style to the round and whimsical style of the bonnet and eyebrow dormers.

Where did Dormers Originate?

Dormers were found in Western architecture for centuries, made popular by the French architect Francois Mansart, who died in 1666. [2] He frequently used this feature in roofs he designed for structures throughout 17th-century Paris. Homes built before the mid-1900s often featured dormers, as did so many craftsman and bungalow-style homes popular in the early 1900s.

What are Dormers? Different Types to Consider

Not all dormers are created equal. There are many different types that each serve a unique purpose.

Shed Dormer

If you’re looking for maximum interior space and light, you’ll want to look into a shed dormer. These dormers have a single-sloping roof that extends from the main roof. These are good choices for large rooms, like offices or bedrooms.

People who have a bungalow and more modern homes typically choose a shed dormer. If you want a skylight, this can be a good alternative. Bonus if you have casement windows because they can also provide rooms with ventilation.

Gable Dormer

Gable dormers are the most common dormer styles. You can spot a gable dormer by its peaked roof. It forms a triangular shape above the window.

People like gable dormers because they provide ample headroom and floor space. They are ideal for creating bonus living areas. Double-hung windows work well with these types of dormers.

Hip Dormer

Hip dormers form a pyramid-like shape above the window. They have a roof that slopes on all three sides. Hip dormers are known to provide a softer look. They also give stronger ventilation throughout your space. Double hung windows also work well with hip dormers.

Flat Roof Dormer

These dormers have a flat roof and are simple in their design. You’ll see flat room dormers in modern homes due to the contemporary look they offer. They maximize interior space and are easy to build.

Wall Dormer

Wall dormers are easy to integrate into a building’s facade. They extend vertically from the wall of the house rather than the roof slope. Wall dormers can dramatically change a home’s look while also providing more vertical space. Some homeowners add wall dormers to create grand views, as they’re the best suited for structures designed with more classical architecture.

Bonus tip: Pull of a stunning design when you pair them with double-hung windows.

Bonnet Dormer

Bonnet dormers have a rounded roof that forms an arch over the window, and they may also be referred to as segmental dormers. Bonnet dormers add a soft, curved element to the roofline and let in lots of natural light, creating a more open space and a whimsical look. Bonnet dormers work best with French, Dutch, and Italian architectural style buildings.

Eyebrow Dormer

Eyebrow dormers are easy to spot because they have a curved roof that resembles an eyebrow. They are smaller and more decorative than some other choices. Eyebrow dormers are typically used purely for aesthetic purposes, giving a nod to the otherworldly aesthetic of a place like J.R.R. Tolkien’s Hobbiton. You’ll see them mainly in the entryway of homes or near patio doors. Cottage and historic homes are usually the best fit for eyebrow dormers.

How do They Enhance the Functionality of a Roof?

Dormers enhance roof functionality by increasing ventilation and usable space. People like dormers because they transform unusable attic space into just about anything you want…bedrooms, living areas, etc. They also increase natural light and make buildings more aesthetically pleasing.

Other Benefits of Dormers

Benefits also provide other benefits that make them attractive to homeowners.

Added Ambiance

By creating more natural light, dormers make living spaces more inviting and spacious. This kicks the ambiance level up a notch, making your space more enjoyable and appealing.

Increased Home Value

Since dormers add more usable space to a home, they also increase its value. This can be extremely beneficial when you go to sell your home down the road.

Improved Air Quality

Dormers help to improve air quality by boosting ventilation. Better airflow can prevent moisture buildup and mold. It also reduces the risk of peeling paint and warping, which can impact your home’s structural integrity.

During warmer months, the added ventilation can also allow hot air to escape more freely, reducing the need to pump the AC 24/7. As a result, you can see lower energy bills.

Curb Appeal Boost

Since dormers give homes an appealing look, they boost curb appeal. Dormers add symmetry and depth to the roofline, making it stand out on a block of homes. You can enjoy the look now, and it can be more appealing to prospective buyers down the road.

How to Choose the Right Dormer Style For Your Home

When selecting what type of dormer to choose from, ask yourself these questions:

What is my roof structure?

Check your roof to make sure it can support your chosen dormer style. Some dormers require more structural modification than others.

What is the intended purpose of the dormer?

Consider whether you’re looking for more living space or just want it for decorative purposes. Typically, shed or gable dormers are good options for additional living space. Eyebrow dormers are good choices for decorative dormers.

What type of architectural style are you looking for?

Think about the overall design of your home. Choose a dormer that complements all aspects of your roof design and home.

How much space and light do you need?

Consider how much interior space and natural light you’re looking for. Larger dormers provide more room light compared to dormers with more decorative purposes.

You also want to look at how your existing roofing material will work with the dormer design you’re envisioning. Dormers with asphalt shingles can be easier to install compared to dormers on metal or slate roofs.

What are Dormers in a House? Reach Out To Plan Your Roofline

If you’re looking to give the outside of your home a new look, you may want to explore the different types of dormers that are available. Dormers can also give your home the added space and functionality you’ve always wanted.