The 5 Categories of Sunrooms & Which Type Is Best for Your Home

Sunrooms January 2020
Screened sunroom enclosure on a Florida home

A sunroom is a great addition to any Florida home. These rooms are incredibly versatile, as they can serve as a workout area, a playroom for your children, or an entertainment area for hosting guests. They add space and functionality to your home and increase its overall value.

Sunrooms do a great job of regulating sun exposure and temperature. With one, you can enjoy natural light and outdoor views without suffering through Florida’s intense heat. Oftentimes, sunrooms are more desirable over lanais and screen rooms because of their more intricate construction.

Here at True Aluminum, we install sunrooms for properties in Wesley Chapel, Plant City, Lakeland, and the surrounding areas.

When deciding on the right sunroom for your home, you should be aware of the different types. There isn’t a one-size-fits-all sunroom. Here, we’ll explore the five categories of sunrooms you should keep in mind when planning this addition to your home.

1. Category I sunrooms are screen rooms.

Screen room with backyard view

The Florida Building Code has placed sunrooms into five categories numbered one through five. Category I is the simplest sunroom. It is defined as a roof or covering of an outdoor area. Essentially, a Category I is just a room with screen walls and a roof. This type of sunroom is your most affordable option.

The Florida Building Code defines sunrooms in Categories I-III as “unconditioned and non-habitable.”

2. Category II sunrooms have enclosed walls.

Category II sunrooms have a roof and enclosed walls. The openings can be enclosed with transparent or translucent glass or plastic.

Typically, you’ll see Category II sunrooms constructed with acrylic windows. These tend to do a great job of keeping water out during the rainy season.

3. Category III sunrooms meet air-leakage resistance and other requirements.

Category III sunrooms are similar in design to those in Category II. However, they offer several benefits to consider. These sunrooms meet the following requirements:

  • Air-leakage resistance
  • Water-penetration resistance
  • Forced-entry resistance

Category III sunrooms are made with glass with shutters or impact glass. Typically, residents opt for impact glass because it’s more economical.

4. Category IV sunrooms are habitable.

Sunroom construction on Florida home with new white-framed glass enclosure

A Category IV sunroom is considered habitable, so you’ll be able to add square footage value to your overall home.

If you plan on spending hours at a time in your addition, a Category IV sunroom may be the way to go. It has its own temperature control system so you can stay cool on hot summer days.

5. Category V sunrooms utilize your home’s central AC system.

Category V sunrooms are built to use the same AC system that the rest of your home does. These sunrooms also offer enhanced thermal performance compared to those in the previous categories.

Are you interested in adding a sunroom to your Florida home? Call us today.

Now that you are aware of the five different categories of sunrooms, you may have a better idea of the exact addition you would like to add to your home and understanding these five categories will help you narrow down your options.

Our team is happy to help you reach a final decision. Call us today at (863) 804-6021 for a custom sunroom for your property in Wesley Chapel, Plant City, Lakeland, or a nearby area. Our team works with you to design a sunroom that you’ll love and use for years to come.

Find Us in Plant City

Our office is at 4000 N Frontage Rd in Plant City. We serve homeowners and businesses throughout Central Florida. Polk, eastern Hillsborough, and Pasco counties.

What Central Florida Says

Real Reviews From Real Central Florida Customers

Live from our Google Business Profile and Facebook page. Updated automatically.

"I had a great experience with the True Aluminum team! The team was professional, responsive, and did excellent work from start to finish. The quality of the cage installation exceeded my expectations, and the project was completed on time. The crew was courteous and respectful of my property, and I would highly recommend them to anyone looking for a high-quality outdoor enclosure. Thank you for a job well done!"
Aridai Gonzalez Jun 2026
"We are more than satisfied with True Aluminum. The office staff and all of the personnel are very professional and immediately respond to any questions or requests. The work performed on my lanai is beyond expectation. We recommend True Aluminum 100%."
Nellie Marengo May 2026
"What a great vendor to work with! Did an outstanding job, very happy and would recommend to anyone for their lanai needs."
Tim Foster May 2026
"Everything was handled timely and with such professionalism. The office kept me informed every step of the way and the two who actually did the work were absolutely amazing. They showed up on time, worked diligently, were courteous, and every day they cleaned up. Everyone associated with True Aluminum was top rate! I would recommend them again and again."
Janice Atkinson Apr 2026
"Had a leak in our sunroom every time it rained. I had seen True Aluminum trucks in different parts of my neighborhood in Lake Ashton, so gave them a call for a repair estimate. Setup an appointment within a week and repair was scheduled within another week. Finn Mackenzie was my repair man, and he was very professional and a very down to earth real person to talk with! He told me his plan to repair and fix my whole problem and afterwards asked if I had any questions or concerns. I found out pretty fast Finn was a perfectionist! All work was done and everything cleaned up just as if no one was ever there."
Danny Phillips Apr 2026
"Excellent company! True Aluminum installed a screen system for our lanai. It was complicated with arches and a large area covered by an awning. From estimate to sitting in our screened area took about a week. Incredible!!! Chris and his team were so polite and respectful. I have used True for building, A/C, repairs, painting and now screening and have always had the best possible service and quality work. I can give no higher recommendation!"
Monte Erfourth Apr 2026

FAQ

Frequently Asked Questions

The answers Central Florida homeowners ask us most often.

What services does True Aluminum provide?
We design, build, and repair aluminum outdoor structures across Central Florida: screen rooms and lanais, pool cages and enclosures, sunrooms, screen replacements and rescreens, patio and deck enclosures, carports, aluminum rails and fencing, storm shutters, seamless gutter installation, and paver installation.
What areas do you serve?
We serve Lakeland, Plant City, Winter Haven, Bartow, Brandon, Davenport, Mulberry, New Tampa, Valrico, Wesley Chapel, Zephyrhills, Auburndale, and the surrounding Central Florida communities across Polk, eastern Hillsborough, and Pasco counties.
Are you licensed and insured?
Yes. True Aluminum is fully licensed and insured, holding Florida aluminum specialty structure license SCC131151391.
Do you offer financing?
Yes. We partner with Wisetack to offer financing on approved credit. Prequalifying takes about a minute and does not impact your credit score.
How do I get an estimate?
Call (863) 804-6021 or send the quote form and we will schedule your True Aluminum inspection. We look at the space, talk through options and materials, and give you a clear written estimate.
How many reviews do you have?
True Aluminum holds a 4.9 star rating across 250+ Google reviews. As part of the True family of companies serving Central Florida since 2009, our teams have served more than 100,000 customers.
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