Types of Ductwork and Their Uses in Orlando & Central Florida

Choosing the right type of ductwork is critical for HVAC performance, energy efficiency, and indoor air quality—especially in Orlando and Central Florida, where heat, humidity, and long cooling seasons put extra stress on HVAC systems. The four most common duct types used in this region are sheet metal, flexible, fiberglass duct board, and fiberboard. Each serves a specific purpose and performs differently in Florida’s climate. Make sure you get the right ducts for your home with Ducks Duct Cleaning!

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1. Sheet Metal Ductwork

Sheet metal ducts are typically made from galvanized steel or aluminum and are considered the most durable duct option.

Uses in Central Florida

• Common in commercial buildings and higher-end residential homes
• Ideal for long, straight duct runs
• Often used where air quality and longevity are priorities

Advantages

• Smooth interior allows strong, efficient airflow
• Less likely to harbor mold when properly sealed
• Easier to clean and sanitize during professional duct cleaning

Considerations

• Requires proper insulation to prevent condensation in humid environments
• Higher upfront installation cost

Florida-specific note:

In Orlando’s humid climate, uninsulated or poorly sealed metal ducts can sweat, leading to moisture issues. Proper insulation and sealing are essential.

Already have a quote for your home's ducts? Get a 2nd opinion today and make sure the proper ducts are quoted.

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2. Flexible Duct (Flex Duct)

Flexible ductwork is made from a wire coil covered with plastic and insulation. It is extremely common in Central Florida homes.

Uses in Central Florida

• Widely used in residential attics
• Short connections between main trunk lines and vents
• Retrofit and replacement projects

Advantages

• Lower cost and faster installation
• Easy to route around obstacles
• Built-in insulation helps reduce condensation

Considerations

• Can restrict airflow if bent, compressed, or sagging
• More prone to dust buildup over time
• Shorter lifespan compared to metal ducts

Florida-specific note:

Flex duct performs well in Florida when installed correctly. Poor installation is one of the leading causes of airflow problems and high energy bills in Orlando-area homes.

Get a duct inspection today.

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3. Fiberglass Duct Board

Fiberglass duct board is made from rigid fiberglass panels formed into ducts, providing both structure and insulation.

Uses in Central Florida

• Residential and light commercial systems
• Homes prioritizing quieter HVAC operation
• Systems requiring built-in insulation

Advantages

• Excellent thermal insulation
• Reduces noise from airflow and equipment
• Cost-effective alternative to insulated metal ducts

Considerations

• Interior surface can degrade over time
• More difficult to clean thoroughly
• If damaged, fiberglass particles can affect air quality

Florida-specific note:

Because of humidity, fiberglass duct board must be properly sealed to prevent moisture intrusion and mold growth.
‍Get an inspection or estimate on ducts today.

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4. Fiberboard Ductwork

Fiberboard ducts are similar to fiberglass duct board but typically denser and used less frequently in modern residential construction.

Uses in Central Florida

• Older homes and legacy HVAC systems
• Budget-conscious installations

Advantages

• Built-in insulation
• Lower material cost

Considerations

• More susceptible to moisture damage
• Can deteriorate in humid conditions
• Not ideal for long-term durability in Florida

Florida-specific note:

In Central Florida, fiberboard ducts are more likely to degrade due to prolonged exposure to heat and humidity, making inspection and maintenance especially important.

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Tell us what ducts you use for your home.

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Which Duct Type Is Best for Orlando Homes?

There is no one-size-fits-all solution. In Central Florida:

• Sheet metal is best for durability and air quality
• Flex duct is most common for residential efficiency and affordability
• Fiberglass duct board works well when insulation and noise reduction are priorities
• Fiberboard is generally best suited for older systems or short-term use

Duct Condition Matters More Than Duct Type

Regardless of material, dirty, leaking, or poorly installed ducts can reduce HVAC efficiency, worsen indoor air quality, and increase energy costs—especially during Florida’s long cooling season.

If you’re unsure what type of ductwork your home has or whether it’s performing properly, a professional inspection and cleaning can make a measurable difference in comfort and efficiency throughout Orlando and Central Florida.

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