What Components Are Included On Exterior Trim?


Trim is the material used to encase windows and doors, among other features, on a home’s exterior. Fascia is a horizontal or angled board that encloses the edge or face of the projecting eaves.


Disc, valve seat, and stem are common for all the valves. Valve Trim components will change with types of valves. Valve specific trim includes a back seat, glands, spacers, guides, bushings, retaining pins, and internal springs. Here in the image, you can see the gate valve trim parts.

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Frequently Asked Questions

What is included in exterior trim?

Trim on a home's exterior typically includes the material that edges the windows and doors, the fascia board that runs along the lower edge of the roof and the soffits beneath the roof. Depending on the style of your home, your trim could include more elements, like a horizontal trim board that runs beneath the fascia.

What is the purpose of exterior trim?

The primary function of exterior trim protects the internal structure of the building from the elements. Having trimming that looks good is half the charm! For instance, the roof and gutters on your home are a system.

What should I use for exterior trim?

Exterior Wood Trim

  • Douglas Fir. Doug Fir is one of the most widely used of all the exterior wood trim materials. ...
  • Redwood. Redwood is a great wood trim. ...
  • Western Red Cedar. Cedar rivals redwood in weather and insect deterrents. ...
  • Primed Fascia. ...
  • Specialty Wood Trim Products.

What is the decorative trim along the eaves called?

cornice - (1) a decorative feature found under the eaves of a roof; (2) projecting ornamental molding hiding joint of a ceiling. or roof, and wall.

What are the different types of exterior trim?

Fascia, frieze, rake, barge, soffit, boxend and gutters are the most common exterior trim terms you’ll hear. But if you’re talking with an exterior renovation expert, it’s handy to be familiar with a few other industry words. Here are some other useful trim terms:

What are the requirements for exterior trim on a building?

Requirements are detailed at TRIM, EXTERIOR CHOICES, INSTALLATION where we discuss best construction practices in the choice, installation, painting, and maintenance of exterior trim on buildings.

What kind of PVC is used for exterior trim?

Cellular PVC exterior house trim is manufactured from polyvinyl chloride and molded to various styles and sizes. It is easy to install using standard woodworking tools, but it tends to be on the higher end of the price spectrum. It is also not suitable for areas with dramatic temperature changes.

Why do people use wood for exterior trim?

Wood exterior house trim is no longer the “go-to” product. Consumers are turning to manufactured products more often due to their durability and low maintenance upkeep. With all the material, size, and color choices available, you are sure to find an exterior trim that fits your unique style and vision.

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