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Duct Sealing

17
May

The typical duct system leaks approximately one-third of the air passing through it. This air loss can cost hundreds of dollars a year in energy expenses. This is air you are paying to heat/cool in order to maintain a comfortable home, but instead is leaking into attics, walls, crawl spaces, etc. To compensate, your system has to work overtime to try to keep up resulting in excessive energy expenses, poor comfort and undue stress on your comfort system.

We’ve discussed the Whole House Approach to Comfort in the past and touched on the impact of your duct system. The location of your supply/return registers, the resistance and airflow capacity resulting from the design of your duct system will help or hinder system performance and your comfort. Another major factor is duct leakage. It’s a known fact that all duct systems leak air, the question is to what degree or more importantly, to what result.

If you’ve noticed vents that produce very little airflow in certain rooms, significant temperature differences room to room, the area around your indoor unit is always hot/cold depending on the season, high humidity in the summer, high energy usage or your system seems to run all the time; these are all symptoms of typical duct leakage.

The majority of your duct system is hidden away between floors, walls, attics and crawl spaces. Each and every connection, seam and transition has leakage. The bottom line is conditioned air is leaking into areas outside your living space instead of being delivered to where you need it. In addition, leakage in return duct draws air in from all these unwanted areas. Not only is this affecting your air quality, but air from an attic/crawlspace brings with it extreme temperatures and humidity which creates additional challenges for your system to overcome.

Because most of the duct is inaccessible, it’s been something that we just had to live with. However, we’ve uncovered a technology that allows you to seal the duct system from the inside with virtually no interruption to the living space of the home. Aeroseal is a product that allows you to quantify the actual leakage, seal the holes and measure the improvement in real-time during the process. The end result: improved comfort, reduced energy usage and better air quality.

Category : Duct Sealing | Blog
7
Mar

Most people don’t spend a lot of time thinking about their air ducts. But did you know that sealed and insulated ducts can make your home more comfortable and energy efficient? Did you also know that energy efficient is basically code for saving money on your monthly utility bills?

There are several signs that your home could benefit from duct sealing:

  • High utility bills
  • Rooms that are too hot in the winter/too cold in the summer
  • Excessive dust in your home

When you have leaky air ducts, it reduces the efficiency of your home’s HVAC systems. Duct sealing can therefore help save you money by increasing the efficiency of your system’s performance and therefore lowering your energy bills.

Of course there are other benefits to duct sealing:

  • Duct sealing can help improve your home’s indoor air quality.
  • It also reduces the risk of backdrafting, if you have a gas furnace or water heater.
  • Since duct sealing helps conserve energy, it’s also a great way to minimize your home’s environmental impact.

Schedule a Duct Sealing Appointment with GAC

At GAC Cooling & Heating, we offer duct sealing in the Gaithersburg and Frederick, MD areas. We’ve come to trust Aeroseal when it comes to sealing our customer’s air ducts. We find it to be the most cost effective way to reduce duct leakage and to help them save money on their energy bills.

How does it work? Aeorseal is an aerosol spray which is injected into your ducts. As tiny holes in your duct draw air toward it, the Aeroseal particles smack right into them, sealing them up tight. Now, air moves through your ducts the way it’s supposed to, and into the areas of your home where you most need comfort. The whole process takes just a few hours and can reduce leaks by up to 98 percent.

The duct sealing treatment comes with a 10 year warranty, and often customers see energy savings within 2-3 years that totally pay for the cost of the sealing. All in all, it’s a great solution for your wallet and for your overall comfort.

Contact us today for an estimate on duct sealing in the Gaithersburg or Frederick, MD areas!

Category : Duct Sealing | Blog
11
Dec

Did your mom or dad ever scold you to shut the door because “we’re not paying to heat the outdoors”? Even if you’ve got all your doors and windows shut and locked, chances are you still are paying to heat the outdoors. About 1/3 of all the air you pay to heat or cool will wind up escaping through your duct system into your walls, your attic, your basement, your crawlspace and other uninhabited areas. In return, your HVAC system is also drawing fresh air in through those same gaps and chinks in your ducts. Think about it: do you want to be breathing air from your attic or crawlspace? It’s dirty, which is unpleasant for you and makes your HVAC system work harder. Bottom line: leaky ducts mean more expensive heating and cooling bills and less comfort overall.

The solution, in most cases, is surprisingly simple. You don’t need to replace your ducts or go to any drastic extremes. We work with Montgomery County homeowners to protect their ducts using a product called Aeroseal. This duct sealer is an aerosol spray which is injected into your ducts. As tiny holes in your duct draw air toward it, the Aeroseal particles smack right into them, sealing them up tight. Now, air moves through your ducts the way it’s supposed to, and into the areas of your home where you most need comfort. The whole process takes just a few hours and can reduce leaks by up to 98%.

Sometimes, we find that people are skeptical about how much air is really escaping through their ducts. But once they’ve had Aeroseal, they’re believers. It’s not unusual to hear that after an Aeroseal treatment, homeowners are surprised to find the toilet paper fluttering in their bathroom. For the first time, their HVAC system is working to its full capacity to keep them comfortable, rather than to heat the uninhabited nooks and crannies of their home.

The duct sealing treatment comes with a 10 year warranty, and often customers see energy savings within 2-3 years that totally pay for the cost of the sealing. All in all, it’s a great solution for your wallet and for your overall comfort.

Interested in trying Aeroseal in your home? Contact GAC Cooling & Heating (Gaithersburg Air Conditioning and Heating) today. We’ll inspect your ductwork, determine if you’re a good candidate and help you understand what kinds of results you might see. Schedule your appointment now.

Category : Air Quality | Duct Sealing | Blog
8
Aug

While our summer’s been unusually mild in Montgomery County this year, you may still have noticed that even if your first floor is comfortable, your second story is sweltering. Or maybe it’s your basement that’s freezing. To some extent, these are natural fluctuations because warm air rises, but a dramatic difference, may be part of a larger issue with air flow in your home.

Ducts carry air from your air conditioner, furnace and/or heat pump and distribute it throughout the house. As air travels away from the heating or cooling source, it naturally loses some of its temperature. However, when you have leaky ducts, you wind up wasting air that you’ve paid good money to condition and make your home less comfortable at the same time. It’s a bad deal all around.

Don’t worry—there are some quick and easy fixes to make your ducts more air-tight. One of our favorite tools when working with clients in Rockville, Germantown and other cities is Aeroseal. Aeroseal is a spray that actually seals ducts from the inside out. A sealant is injected into the vent system. Tiny molecules are suspended in the air and pushed through your ductwork as your HVAC system runs. When air tries to escape through a leak, the molecules crash into the wall and seal the tiny hole. At the end of the process, your home is more efficient and you should notice a difference in your temperature in those problem areas.

Aeroseal is a great fix if your system is otherwise working properly, but if you’re looking at replacing your furnace and air conditioner, a good HVAC company will also look at your ductwork to make sure it can properly handle the incoming and outgoing airflow without putting undue stress on your heat exchange. Make sure your company always thoroughly investigates your duct system to make sure it can handle your airflow.

At GAC Cooling & Heating (Gaithersburg Air Conditioning & Heating), we always audit your ductwork system to make sure it’s working to its fullest potential and not wasting your hard-earned money or contributing to an uncomfortable house. We’ll have a solution for you, whether that’s using Aeroseal or otherwise sealing and rearranging your ducts for maximum efficiency. Call us today for more information.  877.448.2366

Category : Duct Sealing | Energy & Money Saving Tips | Blog