Roofs are one of the primary components of a building envelope and are understood as the uppermost part of a building that gives protection from the environment, climate, and animals. Roofs are often designed uniquely for each region and building typology based on architectural traditions responding to specific materials, styles, and functions. Roofs generally function in two parts: a supporting structure and an outer skin for weatherproofing.

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Roof Shapes

Roof Slope Interior Clearances

Interior clearances for roof slopes provide guides for designing functional human spaces under the challenging constraints of angled roof planes. With various angles ranging from low slopes of 20° to extremely steep pitches of 50°, roof slopes restrict the amount of usable space based on comfortable heights of standing people.

It is advised that ceiling heights be designed at a minimum of 7’6” (230 cm) with minimal human clearances set at 5’ 11” (180 cm). To provide for more functional space around the perimeter of a sloped roof, starting heights of 3’-5’3” (90-160 cm) should be provided at the base of the slope to accommodate a range of diverse functions and furniture options such as chairs, desks, low beds, and storage.

Diagram drawing showing clearances for usable interior spaces below various roof slopes and angles
Interior clearances for roof slopes provide guides for designing functional human spaces under the challenging constraints of angled roof planes. With various angles ranging from slopes of 20° to pitches of 50°, roof slopes restrict the amount of usable space based on comfortable heights of people.

It is advised that ceiling heights be designed at a minimum of 7’6” (230 cm) with minimal human clearances set at 5’ 11” (180 cm). To provide for more functional space around the perimeter of a sloped roof, starting heights of 3’-5’3” (90-160 cm) should be provided at the base of the slope to accommodate a range of diverse functions and furniture options such as chairs, desks, low beds, and storage.

Diagram drawing showing clearances for usable interior spaces below various roof slopes and angles
Roof Slope Interior Clearances
Height:
Width:
Length:
Depth:
Weight:
Area:

Slope Starting Clearance: 3’-5’3” | 90-160 cm
Human Clearance (Height): 5’11” | 180 cm
Ceiling Clearance: 7’6” | 230 cm

Drawings include:
Roof Slope Interior Clearances diagram

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Roof Shapes

Roof shapes are greatly influenced and designed based on the varied properties of specific climates, regions, materials, and architectural styles. Because of the variety of design strategies, roof terminology is flexible and can range from flat roofs to steeply pitched angles. Similarly, roof shapes can be simple singular planes, form domes or arches, or can become complex combinations of slopes, gables, hips, cut-outs, and additions.

Collection of diagrammatic axon drawings of 16 variations of Roof Shapes and styles
Roof shapes are greatly influenced by the varied properties of specific climates, regions, materials, and architectural styles. Because of the variety of design strategies, roof terminology is flexible and can range from flat roofs to steep pitches, domes, arches, or complex combinations of angles.

Collection of diagrammatic axon drawings of 16 variations of Roof Shapes and styles
Roof Shapes
Height:
Width:
Length:
Depth:
Weight:
Area:

Drawings include:
Roof Shapes axon diagrams

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