What Is a Slanted Roof Called: Types, Terms, and Uses

What Is A Slanted Roof Called is a common search asking about the terminology and varieties of roofs that are not flat. This article explains the names, structural differences, advantages, and common uses of slanted roofs across residential and commercial buildings in the U.S.

Why People Ask “What Is A Slanted Roof Called”

Searchers type “What Is A Slanted Roof Called” when identifying roof styles from photos, planning a remodel, or researching roofing terminology for permits and insurance. Understanding the correct roof name helps with quotes, materials, and local code compliance.

Common Names For Slanted Roofs

Several roof styles fall under the slanted category. Each style has its own structural, aesthetic, and drainage characteristics. Knowing these names—gabled, hipped, shed, skillion, and more—clarifies design choices.

Gable Roof

The gable roof has two sloping planes that meet at a central ridge, forming a triangular gable at each end. This is one of the most recognizable and cost-effective roof types, offering excellent water runoff and attic space.

Hip Roof

A hip roof slopes down on all four sides to the walls, often with a gentle pitch. Hip roofs provide superior stability and wind resistance, which makes them popular in storm-prone U.S. regions.

Shed Roof (Skillion)

A shed roof, also called a skillion, consists of a single sloped plane. This minimalist design is widely used for modern architecture, additions, and sheds due to simplicity and low cost.

Mansard Roof

A mansard roof has two slopes on each side, with the lower slope much steeper than the upper. It maximizes interior space and is frequently used for French-inspired or historic designs.

Gambrel Roof

A gambrel roof is similar to a mansard but typically only on two sides; it has two different slopes on each side. Common in barns and colonial-style homes, it creates generous overhead storage and living space.

Specialized Slanted Roof Types

Beyond basic categories, several specialized slanted roofs emerge for specific needs. These include butterfly, sawtooth, and clerestory roof designs, which accommodate light, ventilation, or solar panels.

Butterfly Roof

The butterfly roof has two slopes that angle inward, forming a valley at the center. It channels rainwater to a central collection point and is favored for modern eco-friendly homes.

Sawtooth Roof

Sawtooth roofs alternate steep and shallow slopes, typically on industrial buildings, to admit natural light via vertical glazing. They enhance daylighting while controlling glare and heat gain.

Clerestory Roof

A clerestory roof integrates a vertical wall of windows between two sloping roof sections. This design improves natural light and ventilation without sacrificing privacy.

How Roof Pitch Determines If A Roof Is “Slanted”

Roof pitch is a ratio expressing the vertical rise over a horizontal span, often written as “rise in inches per 12 inches of run.” Any roof with measurable pitch is considered slanted; common pitches range from low (2:12) to steep (12:12 or greater).

Roof Type	Key Feature	Common Use
Gable	Two sloping sides meeting at a ridge	Homes, cottages
Hip	All sides slope down to walls	Hurricane-prone areas
Shed	Single sloping plane	Additions, modern homes
Mansard	Dual slope on each side, steep lower slope	Maximizing attic space

Pitch	Description	Typical Use
Low (2:12–4:12)	Gentle slope	Modern homes, metal roofing
Medium (4:12–9:12)	Balanced slope	Most residential roofs
Steep (9:12+)	Sharp slope	Snowy regions, Gothic aesthetics

Advantages Of Slanted Roofs

Slanted roofs offer several practical benefits over flat roofs. They shed water and snow efficiently, reduce leaks, improve attic ventilation, and allow for varied interior volumes, making them a durable and versatile choice for many climates.

Materials Best Suited For Slanted Roofs

Material choice affects durability, appearance, and cost. Common materials include asphalt shingles, metal panels, clay or concrete tiles, and wood shakes, each suited to different slopes and local codes.

• Asphalt Shingles: Economical, easy to install, suitable for medium to steep pitches.
• Metal Roofing: Long-lasting, lightweight, ideal for low to steep slopes and great for snow shedding.
• Tiles (Clay/Concrete): Durable and heavy; require framing capable of supporting extra weight; common in Mediterranean styles.
• Wood Shakes: Rustic appearance; require fire-resistant treatments in some jurisdictions.

How To Identify The Type Of A Slanted Roof

Visual cues and measurements help identify a slanted roof type. Look at the number of planes, where they meet, and the roof’s silhouette against the sky to distinguish gable from hip or gambrel from mansard.

1. Count the roof planes and note whether slopes meet at a central ridge or a hip.
2. Observe the eaves and overhangs to determine drainage and architectural style.
3. Measure pitch if possible to know suitability for materials like shingles or tiles.

Permitting, Codes, And Weather Considerations

Local building codes and climate affect slanted roof design choices. Snow load, wind zones, and fire ratings will dictate required pitch, fastening methods, and material approvals under most municipal regulations.

Costs And Maintenance For Slanted Roofs

Costs vary by complexity, materials, and region. Simple gable roofs are generally less expensive than complex hip or mansard systems. Maintenance includes inspecting for damaged shingles, ensuring flashing is intact, and clearing gutters to prevent water backups.

Using Slanted Roofs For Energy Efficiency And Solar

Slanted roofs are ideal for solar installations when oriented properly. Roof angle, orientation, and shading determine solar panel output, and slanted roofs often provide optimal tilt without additional mounting structure.

Architectural Trends And Modern Uses

Contemporary architecture favors sleek, single-sloped forms and asymmetric volumes. Shed and butterfly roofs are trending in modern U.S. homes for their clean lines and sustainable design potential.

Common Questions About Slanted Roofs

People often ask if slanted roofs are better than flat roofs. For water and snow management, slanted roofs typically outperform flat roofs, but flat roofs may offer usable outdoor space or easier access for equipment.

Are Slanted Roofs More Expensive?

Cost depends on complexity and materials. Simple slanted roofs can be cost-effective, while ornate or steep designs increase labor and material costs.

Can A Flat Roof Be Converted To A Slanted Roof?

Conversions are possible but often involve framing changes and permits. Adding a sloped structure can improve drainage and extend the life of the roof but may require structural reinforcement.

Summary Of Key Terms

For quick reference: Gable, hip, shed/skillion, gambrel, mansard, butterfly, sawtooth, and clerestory are the core slanted roof terms used in architecture, construction, and design discussions.

Further Resources And Next Steps

When planning a roof project, consult local building codes and a licensed roofer or architect. Accurate identification of “what a slanted roof is called” will streamline planning, permitting, and budgeting for a successful project.