What is the underside of a roof overhang called?

Soffit: The underside of the eaves, or roof overhang, which can be enclosed or exposed.

Accordingly, what are the parts of a roof called?

Parts of a roof

Decking (or sheathing) Usually made from 1⁄2-inch plywood, the decking closes and reinforces the roof structure and provides a nailbed for the shingles.
Roof edge (or eaves edge) All the boards running along the edge of the roof or eaves.
Attic.
Saddle.
Ridge.
Valley.
Underlay membrane.
Eaves membrane.

Secondly, is the soffit part of the roof? The soffit is the exposed underside of a roof eave. Located underneath the fascia, it bridges the gap between the edge of the roof and the wall of the house. (Unlike the roof itself, you can usually see them just fine from the ground, looking up.)

Likewise, people ask, what is the average overhang for a roof?

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 supports.

What is an overhang on a house?

An overhang in architecture 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.

39 Related Question Answers Found

What is the trim around a roof called?

Roofing Terms. Fascia: Vertical roof trim located along the perimeter of a building, usually below the roof level, to cover the rafter tails at the eaves and to seal off the top of the siding along the rake; also called gutter boards.

What is roof coping?

Coping: the covering piece on top of a wall which is exposed to the weather, usually made of metal, masonry, or stone. It is preferably sloped to shed water back onto the roof. Cross Ventilation: the effect that is provided when air moves through a roof cavity between the vents.

How many layers does a roof have?

Most building codes allow two layers of organic or fiberglass asphalt shingles on roofs with a 4/12 pitch or less, and three layers on steeper roofs. If the structure can support the added weight, a typical 20-square (2,000-square-foot) reroof will cost at least $1,000 less than a tear-off job.

What is a roof made up of?

This group includes shingles made of various materials, tiles made of baked clay or slate, and corrugated sheets of steel, aluminum, lead, copper, or zinc. Flat roofs are normally covered with roofing felt and tar, while sloped roofs are generally covered with shingles or sheet metal.

What are the parts of a roof truss?

The Basic Components of a Roof Truss

Apex – Highest point where the sloping top chords meet.
Bearing – Structural support of trusses (usually walls) normally with a timber wall plate.
Bottom Chords (BC) – the lowest longitudinal member of a truss.
Cantilever – part of structural member that extends beyond its support.

What part of the house is the fascia?

The fascia board is the one mounted at the point where the roof meets the outer walls of the house and is often called the ROOFLINE. However most people refer to it by the name of the main board that carries the gutter – the fascia or fascias.

What is the point of a roof called?

Eaves: The eaves of a roof is its lowest horizontal edge. Rafters support a pitched roof covering. Ridge: The highest point of a pitched roof that receives the head of the spars (also called rafters or common rafters).

What part of the roof is the rake?

Rake. The rake of the roof is the exposed outer portion of a gable roof that extends from the eave to the ridge. Drip edge is also installed along the rake.

Does metal roof need drip edge?

A drip edge is a metal (usually aluminum) strip which extends beyond other parts of a roof and directs rainwater off the roof away from the fascia and into the gutter. This is important because a badly positioned drip edge—or no drip edge at all– can cause overflowing of gutters, over front or back.

Are roof overhangs necessary?

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. The most common design error is to make roof overhangs too stingy.

What is a gable overhang?

Definition: An Eave is defined as the edge of the roof that overhangs the face of a wall. This is the portion of the roof that protrudes beyond the side of a house or building. In contrast, a Gable (or Rake) is the overhang of a building that occurs on the side that is topped by a gable roof.

How far can you cantilever a 2x6 roof?

Deck Joist Cantilever Rules and Limits

Joist Spacing (o.c.)		24"
Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir	2x6	1'-2"
	2x8	2'-2"
	2x10	2'-9"
	2x12	3'-3"

How long should Eaves be?

Aim for consistent sill heights where possible and consider extending the eaves overhang over full height doors or windows. This allows the 45% rule to be simply met with the following standard eaves overhangs: 450mm where height is 900–1200mm. 600mm for a height of 1200–1350mm.

How big should overhang be?

A typical overhang for a comfortable seating area should be around 25-30cm (10-12”), this should leave enough knee room and adequate space between the countertop edge and the person seated. Therefore, as the depth of the overhang increases, so does the comfort and usability of the bar.

What is the difference between soffit and eaves?

The main difference between Soffit and Eaves is that the Soffit is a structure to fill the space between the ceiling and the top of cabinets mounted on the wall and Eaves is a edges of the roof which overhang the face of a wall.

What is difference between fascia and soffit?

Typically a soffit is used in the area beneath the eaves on the exterior of a house to close the space beneath the eave. The soffit extends from the side of the structure to the edge of the eave. Fascia is used to create a barrier between the edge of the roof and the outside.

What is the point of a soffit?

The Purpose of Soffit. Like many parts of a home's exterior, soffit serves both an aesthetic and a functional purpose. Functionally, the basic mission of soffit is to protect rafters from the elements. Keeping moisture away from the rafters reduces the chance of mold, and helps preserve the life of the materials.