Roof edge (or eaves edge): all the boards that go along the edge of the roof or eaves. Another name for a fascia is a fascia. The term soffit is also used to describe the underside of the fascia board at the top of the wall structure. The word comes from Latin, meaning "drop off."
The edge of the roof is where it meets the wall. The two terms are not always used interchangeably. The edge of the roof may also be called the eave, although this term is often used to refer only to the portion of the edge that extends above the wall line.
Fasciae are horizontal boards at the bottom and sides of a window or door frame. They serve to cover and protect the exterior surface of the building frame from weather damage and provide an attractive appearance. The space between the bottom edge of a fascia and the floor or ground it protects is called a gutter. Fascia are usually made of wood, but some metal facings are available. The flashing used under roofing material to seal in the water that runs off into the gutter is called a drip cap. It should be placed over each end of the fascia before the roofing material is installed so that it does not come off when the shingle is replaced if it has been removed.
Eaves. The underside of a roof (usually overhanging beyond the edge of the house) formed by the joining of two or more boards bent back on themselves and fastened together at their ends. Also called eave board.
The word comes from French ouverture de cave, meaning "opening in the roof," which refers to the space between the tops of the walls and the ceiling they form.
In architecture, the eaves are the upper edges of the roof overhang, where it meets the wall surface. They provide protection from the weather for the roof deck and any other components located thereunder. The eaves may be designed to follow the natural contours of the land or they may be flat or have any other design feature. They usually extend above the wall line by about 1 foot.
The location where the eaves meet the wall is called the eave peak. Eaves can be designed with copings at this point, which are small structures that cover the opening at the top of the wall where the two surfaces meet. These help prevent objects such as snow and ice from accumulating there and causing damage to buildings nearby.
The side walls of a building often have several openings called windows or doors.
The fascia board, often known as the "roofline," is the board that is fixed at the point where the roof meets the house's outside walls. Most people, however, refer to it by the name of the primary board that supports the gutter—the fascia or fascias. The word "fascia" comes from the Latin fasces, which means "whip." Thus, fascia refers to a board that carries cross-sections of wood like those on a whip. On a house with vinyl siding, for example, the fascias will be covered with material that is similar in appearance to the siding but will not be adhered to it.
Fascia is an important element in making the exterior of a house look good. It functions as the boundary line between the interior and the exterior of the house; therefore, it should be color-consistent with other elements within the home. Otherwise, it will make the interior of the house seem incongruous when viewed from the street. As well, the fascia helps prevent water from entering the house through locations such as around windows and doors. This prevents damage to the interior of the house due to mold and mildew growth or discoloration caused by flooding. Finally, the fascia provides an effective place to display artwork or photographs. If the house has wooden floors, then the fascias are also appropriate places to display plants.
Eaves are the roof edges that extend over a building's side and overhang the face of the wall. They provide protection from the elements for the upper portion of the wall and surrounding area. The overhang is the space between the exterior surface of the roof and the interior surface of the eave. This is where rain or snow will collect until it can flow away from the building.
Eave brackets hold the eavestrough in place while allowing it to move in response to changes in weather conditions. Brackets also help prevent the eavestrough from pulling up on the roof sheathing. This would cause damage to the roof sheathing and reduce its lifespan.
The location of the eavestrough along the length of the house determines what type of eavestruct is needed. For example, a half-round eavestructure is suitable for a square house with each corner having an integral drip edge. A full-round eavestructure is necessary if you want water to drain off the roof into a gutter located at the end of the eavestrough. The person installing the eavestructure should be aware of the pitch of the roof and select a eavestructure that fits properly.