Roof Covering Materials
In this article, you'll learn all about What are the governing factors in the selection of suitable roof covering materials? also Discuss various types of pitched roof.
Factors Affecting The Selection of Roof Covering Materials
- Factors that govern the selection of suitable roof covering materials are:
- Weather resistance
- Water Tightness – The ability of a material to pass water under a certain pressure for a certain time.
- Water and frost resistance.
- The strength of roofing material is the ability to carry dynamic (wind, atmospheric precipitation) and static (the weight of the snow masses etc) loads.
- Bio stability and corrosion resistance.
- Good sound insulation properties – The ability to create reliable and highly efficient protection against external noise.
- Durability
- Environment friendly.
- Fire safety – an advantage to have a non-combustible or slow-burning material.
- Adaptability: It is possible to lower the complexity of work on roofing.
- Aesthetic requirement. – In the case of pitched roofs. the roof is the important architectural element of the building.
Various Types of Pitched Roof
Various pitched roof types are:
Gable Roof
Gable Roof also known as a pitched or peaked roof.
Gable roofs are some of the most popular roofs in the US. Gable Roof is easily recognized by its triangular shape.
- Common type roof.
- Slopes in two directions
- Slopes meet at the ridge.
- A vertical triangle is formed at the end face
Pros of Gable roofs
Gable roofs are easily shed water and snow, provide more space for the vaulted or attic ceilings and provide excellent ventilation. Their inherently simple design makes it easy to build and cheaper than more complex structures designs.
Cons of Gable roofs
Gable roofs can be problematic in areas with high winds and hurricanes. If your frames are not properly constructed with the right supports, the roof can collapse.
High winds can also cause materials to peel away from gable roofs. If there is too much of an overhang, winds can create an uplift underneath and cause the roof to detach from the walls.
If a gable roof is used in high wind areas, be sure proper braces are used and have the roof inspected after a large storm to ensure no damage has occurred.
Gambrel Roofs
- Similar to gable roof.
- Slopes in two directions but there is a break in each slope.
- A verticle face is formed at each end.
Hip Roofs
- Four sloping surfaces in four direction
- Sloped triangles are formed at each face
Mansand Roof
- Similar to hip roof
- Slopes in four directions but each slope has a break
- Thus slopping ends are obtained
Pros of Mansand Roof
Mansard roofs can help create a great deal of extra living space. Using the space as a full attic or living quarters, called a garret, is very popular. The style lends itself to either open or closed dormers for more aesthetic appeal.
Mansard roofs are great for people wanting the flexibility to make future home additions. When first designing and building a home, you can actually save money by having a simple mansard design to start off. – You can then add on a garret or dormers later. This will not only add value to the house but also allows homeowners to easily make additions as their needs change.
Cons Mansand Roof
A low pitched portion of a mansard roof isn’t ideal for areas receiving heavy snowfall.
Mansard roofs cost more than typical roofs because of the embellishments and details that go into them. However, the added space and character can more than makeup for the extra cost of the initial construction.
Deck Roof
- Similar to hip roof – slopes in all the four direction
- A deck or plane surface is formed at the top
