What is a soffit in a commercial building?

A soffit is an exterior or interior architectural feature, generally the horizontal, aloft underside of any construction element. Its archetypal form, sometimes incorporating or implying the projection of beams, is the underside of eaves (to connect a retaining wall to projecting edge(s) of the roof).

What is a soffit roofing?

The soffit is part of the overhang where your roof meets your siding. When rain or snow hits your roof, it runs down, and the overhang allows the water to flow away from your house. The soffit is underneath the overhang, between the roof’s edge and side of your home—the bottom of the triangle, if you will.

What is fascia on a commercial building?

A fascia sign is a long, rectangular name sign placed directly over the entrance of a business. Name signs were sometimes placed vertically on either side of the entrance. Fascia signs, although still widely used today, became an integral form of advertising before the days of the automobile.

What is the difference between a fascia and a soffit?

You’re asking “what’s a soffit?” A Soffit often refers to the exposed underside of a roof overhang, or eave, while fascia is often used to create a smooth appearance on a roof’s edge and protect the roofing and interior of a home from severe weather.

What is the purpose of soffits?

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. Aesthetically, soffit is an easy way to add character.

What is the underside of a roof overhang called?


The underside of this overhang, when given a finished appearance, is known as the soffit, which means “something fixed underneath”. The soffit is basically, any finishing material, such as wood or fiber cement, that is installed to cover the underside of your roof overhang.

What is the best material to use for a soffit?

While there are a lot of materials on the market for soffits, only fiber cement resists moisture, insect activity, cracking, chipping, and fading. This makes it a better material overall for your home’s exterior.

What is the metal trim around a roof called?

What Is Metal Fascia? Metal fascia covers a structure from the drip edge to the soffit for added protection and a finished look. Metal fascia goes over the fascia board, which is the wood trim installed along the roofing edge of your home. Simply put, it closes the gap between the walls and the roof of a structure.

What is fascia trim?

Fascia trim is the board that is mounted where the room meets the outer walls of your house. The fascia trim acts as the finishing edge that connects to the ends of rafters and trusses. It is usually placed directly to the roof trusses and supports the bottom row of tiles that carries and supports the gutters.

Does a roof need soffits?

Sealing your roof
As well as offering good ventilation for your attic, your fascia and soffits act as that final seal between the inside of your home and the external elements. A well-installed fascia and soffit will help to protect the feet of your roof rafters from the external elements.

Why do builders put in soffits?

By improving airflow and ventilation in your roof, soffit boards prevent humid air from accumulating and condensing into moisture, which can lead to mold and decay. One more thing: Don’t forget to vet a residential roofing contractor before hiring them; this is to make sure your soffit board is installed properly.

Are soffits necessary?

Soffits have an important job on the outside of a house. They protect the underside of the eaves from moisture and rot. Moisture can cause big problems, not only to the eaves, but also to the attic. In fact, soffits can be essential to a properly vented attic.

What is the board under the soffit called?

The vertical board that hangs down from the edges is called the “fascia board”. The Fascia, which derives from the same word in Latin (meaning doorframe), serves as a finishing edge that serves both as a decoration and protector for your roof.

What is the board under the soffit?

The fascia board is the long, straight board that runs along the lower edge of the roof. The fascia is fixed directly to the lower ends of the roof trusses and usually does all the work of supporting the lower edge of the bottom row of tiles. The fascia board also carries all the guttering.

What type of board is used for soffits?

Standard soffit material is 3/8- or 1/2-inch-thick exterior plywood in pine (or similar softwoods) or cedar. Common, but much less durable, is Masonite or similar fiberboard soffit, as well as much more weather-resistant fiber-cement.

What are the different kinds of soffit?

There are three types, namely solid, vented, and hollow. The most common type is solid as it is cost-effective and without any complications in installation. It is successfully sustainable as it requires consistent draughts for ventilation or air circulation.

What is the underside of the roof overhang 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”.

What is roof edging called?

1. The eaves. The eaves are the edges of the roof which overhang a vertical external wall and, normally, they jut out over the side of a building creating an overhang, so rainwater stays clear of the walls.

What are the 3 types of fascia?


  • Classification System.
  • Superficial Fascia.
  • Visceral Fascia.
  • Parietal Fascia.

What is the overhang of a roof called?

roof eaves
The proper term to use when talking about the roof overhang is to call it the roof eaves. The eaves of a roof refer to the edges that extend beyond the wall face. It forms that overhanging structure which makes sure that the water does not damage the siding of house walls.

Do soffits need ventilation?

Soffit vents are required to cool the attic space and help circulate air from outside. The general rule of thumb for the amount of soffit ventilation required is to have at least one square foot of ventilation for every 150 square feet of attic space.

Are roof soffits structural?

Designers and contractors like to use the word “soffit” often, but most people are unfamiliar with such terminology. Soffits play an essential role in the construction of your abode, and without it, your roof would lose structural integrity.

Should all soffits be vented?

So, does my roof need soffit vents? A roof may need soffit vents if there is no other ventilation allowing for adequate air movement. However, if the attic space is properly sealed and insulated, there is no need for this type of ventilation. There is no question that a standard attic space should be vented.

What’s the purpose of soffits?

Do I need ventilation in soffits?