Why Are Some HVAC Systems On The Roof?

Rooftop HVAC unit in San Antonio, TX

You may have noticed several commercial and residential properties that have their HVAC system on the roof in the San Antonio area. Although it’s common for large businesses to take this approach, it also provides some added benefits to residential homes. This is especially true in areas such as San Antonio where the average temperature soars into the 90s for multiple months in a row.

Benefits of Having an HVAC System on the Roof

The most notable reason that you should heavily consider switching to a rooftop HVAC system is that they’re generally much more efficient than their sideyard cousins. Hot air rises, which means that it will float up into your AC unit. Once the air comes back down, however, it’ll be cooler. As a result, your HVAC system uses less energy to cool off your San Antonio home.

Of course, there are many additional reasons to make the switch from a ground system to a rooftop system, including the following points.

Saves Lots of Space

Everyone wants to get the most possible usage of their property. Fortunately, by placing your HVAC unit on the roof, you can utilize the area where your side yard unit used to be. If you have a tiny side yard, this is a great way to maximize your space.

Easier Repairs

An AC located on the roof has the distinct advantage of making repairs easier. Everything you need to access will be right there. Meanwhile, a side yard unit will require you to go back and forth to try to pinpoint where the problem is located.

Quieter Operation

If you’ve ever been in your yard and had to raise your voice to be heard over the AC, then you’ll appreciate how much quieter a rooftop unit can be. They accomplish this task by simply being farther away from where you’ll be speaking. Additionally, a rooftop HVAC helps minimize the noise you’ll hear inside your San Antonio home. This happens because your HVAC system’s components will be located entirely outside.

More Secure

Whether you’re a residential or commercial client, you can breathe easier knowing that your rooftop HVAC system will be much more secure. When an HVAC unit is located on the ground instead, it can become a beacon for opportunistic criminals. For instance, if someone decides to steal the copper from your unit, you’ll be left without any air or heat.

Less Debris

There will typically be less dirt and debris to get sucked into your rooftop HVAC system. For instance, leaves and twigs that fall from trees are a common issue for side yard units. Once the system is clogged, it’ll begin restricting the airflow. You’ll experience reduced comfort and reduced efficiency.

Helps the Planet

Speaking of energy bills, there is another prime benefit associated with the efficiency of rooftop units. Not only will you save some money but you’ll also reduce your carbon footprint! If this matters to you, then switching to a rooftop unit makes good sense.

Easier Connection to Ductwork

Typical HVAC systems connect to your San Antonio home’s ductwork via long duct runs. However, if your house has the correct architecture, a rooftop unit can connect to your ductwork without a long duct run. This can help your unit become more energy efficient.

Reduces Risk of Accidental Damage

If you’ve ever had a side yard HVAC system damaged by a kicked soccer ball or a lawnmower, then you can easily understand why having a rooftop unit is more advantageous. Although it’s always possible that someone could throw something onto your roof, the odds are high that you won’t have to worry about suffering from accidental damage.

Increases Curb Appeal

Using a rooftop system is an easy way to boost your curb appeal. Keep in mind that curb appeal refers to what someone can see at eye level. A side yard HVAC system will stand out immediately, but a rooftop unit will not.

Why Wouldn’t You Want a Rooftop HVAC?

Rooftop HVAC systems may be more efficient and easier to repair, but there are a few reasons why you might not want to make the switch.

Potential Storm Damage

Anytime you have a system stored outside, it can become damaged by high winds, lightning strikes and various weather-related damage. This is a risk that side yard units and rooftop systems face, but the risk is higher when the unit is more elevated. Of course, a rooftop unit is built to withstand the elements, but there is still a chance that the weather might damage it.

Potential Roof Damage

Normally, a rooftop HVAC system doesn’t pose a risk to your roof. However, if the installation process isn’t done correctly, it could cause some roof damage. This, in turn, can lead to pooling water and leaks.

Small Problems Might Be Missed

One advantage of a side yard unit is that its location makes it easier to note odd noises or debris. Unfortunately, when you don’t notice small issues, they can add up to a major problem. One way to avoid this is by scheduling regular preventative maintenance with a professional heating and cooling company.

Higher Initial Cost

Running a rooftop system is much more efficient, which means it will cost you less on a month-by-month basis. The tradeoff for this, though, is that these units typically cost more to purchase. If you’re on a tight budget, you might not be able to afford to make the switch.

Installing Ductwork is Expensive

As long as your San Antonio home already has ductwork, you won’t have to worry about this point. However, if you don’t have existing ductwork, you could save thousands of dollars by installing a ductless HVAC system.

What Area Makes the Most Sense for Your San Antonio Home?

One major factor that must be considered is where your current interior HVAC system is located. It will typically be in one of two locations: either the basement/ground floor or the attic.

If it’s located in your basement or on the ground floor, it may simply be easier to stick with a side yard system. That way, it’ll be simpler to attach your exterior and interior systems via their housing, hoses and wires. On the other hand, if your interior system is located in your attic, it’s going to make it easier to attach your ductwork to a rooftop unit.

Turn to Rosenberg Plumbing & Air in San Antonio!

Rosenberg Plumbing & Air has proudly served the Greater San Antonio Area for the last 37 years. Whenever you need air conditioning, heating, plumbing, ductwork or indoor air quality services in your residential home, we’re here to help! We also provide commercial assistance for air conditioning and heating, along with preventative maintenance. Our award-winning staff will be happy to help you decide between a rooftop or side yard HVAC system.

Are you in the market for a new HVAC unit? Contact Rosenberg Plumbing & Air today to schedule your appointment!

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