How are roofs classified?

This standard includes three classes of fire exposure: • Class A roof coverings, which are effective against severe fire test exposures • Class B roof coverings, which are effective against moderate fire test exposures • Class C roof coverings, which are effective against light fire test exposures.

What are 6 types of roofs?

Six Roof Designs and Styles
  • Gable. Two slopes that form a ridge characterize the most common roof shape – the gable roof. …
  • Flat. A flat roof is just what it sounds like and is a very standard frame for modern homes. …
  • Hip. A hip roof has slopes on all four sides. …
  • Gambrel. …
  • Mansard. …
  • Salt Box.

What are the four basic roof types?

4 Types of Roofs
  • Gable Roof. This roof type is known for its distinguishable triangular shape feature. …
  • Mansard Roof. This roof type was adapted from the French and has a much steeper lower slope. …
  • Flat Roof. This roof type may not be entirely flat but have a low-sloped pitch that makes them appear flat. …
  • Hip Roof.

What are the three types of roofs?

Three Common Roof Designs and Their Advantages
  • Hip. A hip roof has slopes on all of its sides. The roof doesn’t have even a single vertical side. …
  • Gable. A gable roof features two sloping sides that meet at the top to form a ridge. …
  • Flat. A flat roof has an extremely low pitch and is almost horizontally level.

What are the two main types of roofs?

Two main types of roofs are flat roofs and sloping ones.

What are the five main types of roof styles?

The aforementioned styles – gable roofs, hip roofs, jerkinhead roofs, mansard roofs, gambrel roofs, and saltbox roofs – are all pitched roofs.

What is the most common roof type?

The most common residential roofing material used in the United States, asphalt shingles are popular because they are economical and easy to install. These shingles can be reinforced with fiberglass or organic materials (cellulose) without changing the appearance of the shingle.

How many types of roofs are there?

8 Common Roof Types
  • Gable Roof. Think back to your first crayon drawing of a home. …
  • Clipped Gable Roof. The clipped gable roof goes by several names, including bullnose. …
  • Dutch Gable Roof. …
  • Gambrel Roof. …
  • Hip Roof. …
  • Mansard Roof. …
  • Shed Roof. …
  • Flat Roof (Low Slope Roof)

What type of roof is best?

The most durable types of roofing are slate and clay tiles but they’re more expensive than materials like metal or wood. Functional roofing alternatives like green roofs and solar shingles are among the most expensive types. Replacing an old roof is one of the best and most profitable ways to invest in a home.

What is the name of roof?

Roof shapes include flat (or shed), gabled, hipped, arched, domed, and a wide variety of other configurations detailed below. Roof angles are an integral component of roof shape, and vary from almost flat to steeply pitched.

What is roof and its types?

Roof is classified as per functional requirements. The roofs are mainly classified into three different types of roofs. Pitched roof or Sloping Roof. Flat Roof or Terrace Roof. Shell Roofs or curved Roof.

What are the functions of roofs?

Functions
  • To shed water i.e., prevent water from standing on the roof surface. …
  • To protect the building interior from the effects of weather elements such as rain, wind, sun, heat and snow.
  • To provide thermal insulation. …
  • To perform for the expected service life. …
  • Provide a desired, unblemished appearance.

What is a standard roof called?

1. GABLE ROOF. Also known as pitched or peaked roof, gable roofs are some of the most popular roofs in the US. They are easily recognized by their triangular shape.

What are the three main functions of a roof?

The basic function of any roof is to offer protection from the elements for people and their possessions. Roofs can also provide insulation, retaining heat in the winter or cool air in the summer. Certain roofing materials – especially those of fibrous origin – offer strong insulation.