Do you have rooms that just don't seem to get warm enough in the winter or cool enough in the summer? It could be from a lack of insulation, or maybe your heating or cooling system just isn't strong enough. But the answer could be as simple as leaky ductwork! More than 20% of American homes have leaky or detached ducts. And did you know that up to 40% of the energy generated by your HVAC system could be lost through leaky ducts?
Here's how it works... Your heating and cooling systems create hot and cold air and push that air through "supply ducts" to all the rooms of your home. "Return ducts" bring air back from each room to be re-heated or re-cooled. Through shoddy workmanship by the builder, settling of the house in the ground, or passage of time that degrades adhesive materials, some segments of ductwork become detached from other segments. As a result, some of the conditioned air doesn't make it to the rooms of your home. You have comfort issues. And you're paying to heat (or cool) your attic, crawl space and wall cavities.
In addition to comfort issues and wasted energy, leaky ducts are a leading cause of poor indoor air quality, as pollutants are drawn into the system, re-circulated and distributed throughout the house through the heating and cooling systems.
Common Problems with Air Ducts
1) Leaky Air Ducts
This is the most common ductwork problem, and it can lead to a system which is 40% less efficient than normal. And the problem is twofold: First, 40% of the air that you've paid to heat or cool is leaking into wall cavities, crawl spaces and the attic. Second, stale air from those areas is sucked back into the ducts and distributed to the rest of your house, lowering your air quality.
2) Poorly Insulated Ducts
In the middle of winter, when hot air is travelling through un-insulated ducts in your cold basement or crawl space, a lot of energy can be lost through the duct walls. The same goes for cold air travelling through poorly insulated ducts in the hot heat of summer. Un-insulated or poorly insulated ducts can results in a lot of wasted energy – and money.
3) Imbalanced Ductwork
Balance problems are when supply ducts and return ducts carry different amounts of air. This imbalance occurs when the location and size of ducts aren't calculated properly, and they can lead to hot and cold spots in your home, and a lot of wasted energy.
Air duct leaks can cause pressure imbalances that can lead to back drafting into furnaces, wood stoves and gas ranges. This could lead to carbon monoxide exposure, making it all the more important to make sure your ducts don't leak.
Our Duct Sealing & Renovation Solutions
Home Energy Team will test your air duct system with special diagnostic equipment to calculate the energy efficiency of your ductwork, and see if air duct sealing is right for you. We use Duct Blaster® equipment to pinpoint leakages in the HVAC ductwork, and to measure success once the duct sealing is complete. You will be provided with before and after leakage measurements to guarantee success.
We'll seal your ductwork to prevent conditioned air from escaping and dirty air from entering your living space. We will also insulate your ductwork to help retain the heat (or cold) in conditioned air, and make sure your system is safe for you and your family. Typical duct renovation also includes straightening or replacing ducts, sealing air handlers with proper materials, hanging ducts where necessary, replacing registers to improve proper air throw and installing basic fresh air systems.
Start With an Energy Assessment
Duct sealing and renovation can help increase your comfort, save energy, and improve your home's safety, durability and air quality. But the first step is to schedule an energy assessment to find out exactly what home improvement work is recommended for your home.
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The auditor was EXCELLENT! He spent ALOT of time with me. I am going to take 3 to 4 of his suggestions and correct these small items to save on my energy bills.
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Your home energy audit proved to be very informative and helpful. I was not aware of the updraft created inside our walls because of the balloon framing construction. You said that that can cause heat to be pulled out of the house with the draft going up inside the walls and should be re-mediated. You also said that the attic insulation was insufficient and that fiberglass batts can leave spaces for around the edges causing heat loss and that it should have blown in insulation on top of what was there to seal the whole attic and increase the R factor. Thank You for all your advice and expertise. You made me aware of things I should consider and did the upgrades. I can already see the difference on my utility bills!