A gambrel roof is a type of roof that has two sides, each with two distinct slopes. The lower slope is steeper than the upper slope, and the two slopes are separated by a ridge. The lower slope often has a shallower pitch angle than the upper slope.
This design provides extra space in the upper portion of the roof, which can be used for storage or living space.
These types of roofs are a common feature of barns and other agricultural buildings, as well as Dutch Colonial-style homes.
Types of gambrel roof
1. Dutch gambrel roof
This roof is also known as a Dutch Colonial roof, is a type of roof style that is characterized by its double-sloped profile. It features a steep upper slope and a flatter lower slope, with both sides of the roof having a curved profile.
2. Mansard gambrel roof
This style has a nearly flat upper slope and a steep lower slope. It is often seen in French or Victorian-style homes and provides more living space in the attic due to the additional headroom.
3. Open gambrel roof
This is similar to the Dutch gambrel roof, but the lower slope is steeper, and the upper slope is more gently sloped. The roof overhangs are usually wider, creating an open and spacious look.
4. Gambrel-dormer roof
This style has a dormer window located in the middle of the roof, creating additional headroom and living space in the upper part of the house.
Countries where gambrel roofs are common
- United States
- Netherlands
- Canada
- Germany
- France
- Norway
- Sweden etc.
Materials used in the construction of a gambrel roof
Wood: Many roofs are constructed using wooden framing, which can be cost-effective and visually appealing.
Metal: Metal roofing is a durable and long-lasting option for these types of roofs, and can be especially suitable for areas with heavy snowfall or high winds.
Asphalt shingles: Asphalt shingles are a popular roofing material for these roofs due to their affordability, versatility, and ease of installation.
Slate: Slate is a high-end roofing material that can give these roofs a distinctive and elegant look, but is also one of the most expensive options.
Pros of Gambrel Roof
1. More living space
It provides more usable living space in the attic or upper portion of the house due to the additional headroom created by the two slopes.
2. Aesthetically pleasing
It has a distinctive and attractive look, making them a popular choice for many different styles of homes.
3. Cost-effective
It can be more cost-effective than other types of roofs because they require less material and labor to build.
4. Better drainage
The steeper lower slope of this type of roof allows for better water drainage, reducing the risk of leaks or water damage.
5. More storage space
The additional headroom in these roofs also provides extra storage space in the attic for items such as seasonal decorations, luggage, and other items.
6. Better ventilation
It typically has ventilation in the upper portion of the roof, which can help regulate the temperature in the attic and improve air circulation throughout the house.
Cons of Gambrel Roof
1. More complex to build
These are more complex to design and build than other types of roofs, which can increase the overall cost of the project.
2. Gabrel roof can not withstand heavy snow loads
The flatter upper portion of a roof can potentially accumulate snow more easily than a steeper angle, and in areas with heavy snowfall, this can pose a risk of structural damage or collapse.
3. Limited structural support
These have a limited amount of structural support in the upper portion of the roof, which can make them more vulnerable to damage from high winds or heavy snow loads.
4. Limited roofing options
These have a specific design, which can limit the type of roofing materials that can be used.
5. More difficult to maintain
The steep angles of these roofs can make maintenance and clean more difficult, as well as potentially hazardous.
6. Can be more expensive to repair
Due to their complex design, repairing these roofs can be more expensive than repairs to other types of roofs.
A quick comparison between the pros and cons of Gabriel roof
| Pros | Cons |
| Provides more living space | More complex to build |
| Aesthetically pleasing | Limited structural support |
| Cost-effective | More difficult to maintain |
| Better drainage | Can be more expensive to repair |
| More storage space | Less energy-efficient |
| Better ventilation | Cannot withstand heavy snow loads |
