Purpose. The main purpose of an overhang is to give the house protection against strong winds and heavy rain. Aside from preventing water from running over the edge of the house, snow and other debris are also caught by this extended edge.
Why are overhangs important?
Many residential designers pay too little attention to roof overhangs. Roof overhangs have several important functions: they can protect exterior doors, windows, and siding from rain; they can shade windows when solar heat gain is undesirable; and they can help keep basements and crawl spaces dry.
What is an overhang in a house? In architecture, an overhang is a protruding structure that may provide protection for lower levels. … An overhanging eave is the edge of a roof, protruding outwards, beyond the side of the building generally to provide weather protection.
What is the purpose of eaves on a house?
The primary function of the eaves is to keep rain water off the walls and to prevent the ingress of water at the junction where the roof meets the wall.
Does a roof need an overhang?
A roof overhang is an essential part of your roofing system to protect your house. If you are simply adding function and protection, or if you want to incorporate a new style to update the exterior of your home, a new roof overhang is a good idea.
What do overhangs do?
But overhangs have several important functions: they can protect exterior doors, windows, and exterior walls from rain and snow; they can shade windows from hot summertime sun rays; and they can help keep basements and crawl spaces dry by directing rainwater away from the main structure of the house.
Are eaves and soffits the same thing?
The underside of the eaves is referred to as the soffit. The difference between the two is that the underside of the soffit is the only part of the roof that overhangs the wall.
How far can a roof overhang without support?
Two feet is the general maximum length for a typical roof overhang. This will protect a roof from most types of damage. Roof overhangs can extend farther than 2 feet, but beyond this length, they begin to lose structural integrity and require external support.
What is a jetty on a house?
A jetty is an upper floor that depends on a cantilever system in which a horizontal beam, the jetty bressummer, supports the wall above and projects forward beyond the floor below (a technique also called oversailing). … to shelter the lower walls of the house from the weather.
What are the rakes of a house?
This roofing term describes the exposed outer portion of a gable roof that extends from the eave to the ridge. The rake can be flat with no overhang or it can hang over the roof gable end like an eave. You can close in this overhang or leave it open.
Why do houses in tropical areas have overhanging eaves?
Answer: The eaves may also protect a pathway around the building from the rain, prevent erosion of the footings, and reduce splatter on the wall from rain as it hits the ground. … The eaves overhang may also shelter openings to ventilate the roof space.
What is the overhang of a roof called?
What Is a Soffit? Your roof by necessity, will often times extend over the walls of your home. This overhang can go by a few names, such as the house eaves or the rafters of your roof. The underside of this overhang, when given a finished appearance, is known as the soffit, which means “something fixed underneath”.
How much overhang should a roof have?
Overhangs can vary from a few inches to a few feet depending on preference; however, the suggested width of an overhang is between 12” and 18” for eaves and no more than 8” for rakes. That said, overhangs can extend as far as 2′ without the need for external supports.
What are roof overhangs?
The roof overhang refers to how much the edge of the roof goes beyond the house siding. Under the overhang is a structure known as the soffit. Most homes have an overhang, however, length varies greatly depending on the architectural style of the roof, with slate roofs having longer overhangs typically.