AeroBarrier is an interior applied air sealing system that seals building envelope leaks up to 1/2″. The waterborne sealant is aerosolized and injected into a pressurized home. The sealant is self-guided to the edges of visible and invisible leaks to create a seal by accumulating across the leak surface. The sealant is applied within 60-90 minutes and dries quickly before system cleanup is complete. This ensures construction can resume shortly after the process is complete with little to no impact on standard construction schedules. The AeroBarrier system measures envelope leakage in real-time, enabling the system to dial in specific air leakage requirements with precision and guarantee the results.

The AeroBarrier system uses a modified blower door to measure envelope leakage during the process. The blower door is calibrated to meet ASTM Standard E779, E1554, CGSB-149.10-M86, EN 13829, ATTMA Technical Standard 1, NFPA 2001, RESNET and USACE.

AeroBarrier modifies its blower door by adding a heater onto the fan. This allows the system to achieve optimal room temperature and humidity during the sealing process, allowing more sealant to be sprayed into the space for a faster, more efficient sealing process.

AeroBarrier seals holes as large as 1/2”, and as tiny as a single human hair. Aerosol sealing is extremely effective at sealing narrow gaps and extremely small holes that are typically not cost-effective to seal manually, or that are missed using manual sealing techniques.

Our formula is a water-soluble organic compound and is proven safe. The sealant is ultra-low VOC and because it is inert there is no chemical reaction needed to form a seal meaning there is no off-gassing. With more than 150,000 projects sealed to date, we’ve helped hospitals, surgery centers, schools, and public buildings make sure their air is clean, healthy, and comfortable – and saved them energy and money in the process.

In fact, our sealant is GreenGuard Gold Certified, meeting the stricter certification requirements used in schools and healthcare facilities.

AeroBarrier has been used in apartments as small as 500 sq ft and in homes over 10,000 sq ft. As long as the space can be pressurized, it can typically be sealed. Additional blower doors can be added to increase the pressure in larger spaces.

AeroBarrier has sealed houses to as low as 0.19 ACH50. But the value is in the system’s ability to allow builders to seal a home as tight as it is designed for. AeroBarrier can meet any IECC, Passive House, LEED, Well Standard, ENERY STAR, or Net Zero requirement.

A home that is too tight can be a bad thing if the space isn’t designed for that level of tightness. The popular saying “build tight, ventilate right” applies here and works both ways. Building tight without proper ventilation could cause issues with indoor air quality (IAQ) in the space. On the flip side, a leaky home with proper ventilation could cause the mechanical system to not work as it is designed. Because AeroBarrier can dial in the desired tightness of the space it removes the guesswork and ensures that the home is only as tight as the space is designed for.

The AeroBarrier sealant is based on a waterborne acrylic that has been used as a fluid-applied permeable air barrier for many years. The sealant is GREENGUARD Gold certified and has been tested according to various ASTM standards and NFPA 285 for fire spread, smoke production, adhesion, antifungal properties and tensile strength. The sealant is ultra-low VOC and has no off-gassing.

If AeroBarrier is applied at rough-in or right after drywall is installed, there is very minimal preparation required. Vertical surfaces like walls, doors, and windows require no covering. All designed openings, such as ducts, electrical, and plumbing, need to be covered prior to sealing. All finished horizontal surfaces need to be covered.

AeroBarrier can be cleaned off surfaces. We recommend using a standard citrus-based cleaner as soon as possible.

The entire AeroBarrier process, from setup to completion, takes approximately four hours for a typical single-family home. When targeting reduced envelope leakage levels of Passive House or ZERH, additional time may be required.

The AeroBarrier system is typically run with a two-person crew. One is responsible for monitoring and setting up the computer and AeroBarrier system, while the other supports seal preparation, cleanup, and other tasks throughout the seal.

No. During application, if a technician has to enter the space while it is being sealed, they wear personal protective equipment (PPE). After the sealing is complete, the area is safe to enter without protective gear within 20 to 30 minutes

The area needs to be aired out for 30 minutes after the sealing is complete. This is done by opening doors and windows while running the fan. During this time, the sealing equipment and coverings are removed.

Third-party lab testing reveals AeroBarrier withstands a simulated 50-year durability test, with little or no seal degradation. Click here to see the durability test results.

No, the AeroBarrier sealant is considered vapor open, allowing water vapor to pass through the sealant. AeroBarrier is not a primary air or vapor barrier.

The AeroBarrier process requires temperature control and pressurizing the areas to be sealed. The ideal condition is an outdoor temperature of ≥ 40˚F. Sealing can be done below 40˚F but may require additional steps for site preparation.

Cost depends on the construction phase and targeted airtightness levels. Once we have your job specifications, we provide a written quote within 24 hours. Click here to submit an estimate request.

Yes! Sealing your vents and ducts means that air is delivered where it’s needed, and not into your unused basement, attic or crawl space. This also helps get rid of hot and cold spots in your house.

Absolutely! Leaky ducts and vents pull in dust, mold, and dander and then blow them into living rooms, bedrooms, and kitchens. Gross, right? Our system can reduce leaky areas by as much as 90%, making sure dirt isn’t circulated in your house.

A lot! Independent government-sponsored studies have shown that sealing your ducts can save you up to $850 per year! Most homeowners save at least 20%, some save as much as 40% of their total bill. Exact energy savings are difficult to predict, since they depend on where you live, how old your house is, how up to date your system is, how many rooms you need to heat or cool, and how energy costs are calculated in your area.

On our first visit to your home, we will look for any obvious leaks in your heat and air system. We can calculate how much cold and hot air you are actually losing in places like your attic, your garage, and in between walls.Many people already know they have hot and cold spots, or their energy bills are higher than the should be. So, our initial test helps you understand how well or how poorly your system is performing. Many people are surprised to find out how much good air they are losing through leaking ducts and vents.

Without a doubt. Our formula is a water-soluble organic compound. We’ve helped hospitals, surgery centers, schools and public buildings make sure their air is clean, healthy and comfortable – and saved them energy and money in the process. You certainly can stay in your house while the technician is working (although we prefer that no one be in the home so our technicians can work quickly and efficiently), but as a precaution, we do recommend pregnant women, elderly people, and those with any breathing difficulties not be present while we are sealing your ducts and vents.

Our sealant formula is derived from a natural organic compound; is safe to breathe; has been tested by an independent lab, and found to have an extremely low concentration of VOCs. Some say it has a small odor similar to or comparable to Elmer’s glue, which goes away within a few hours after completing the service.

Holes bigger than 5/8 inches in diameter are too big for the sealant to bond to effectively. Any larger, major leaks – like broken, disconnected or damaged ducts – will need to be repaired prior to sealing. Most of the time, we uncover problems like this during our initial inspection. However, if we find this during our sealing process we can easily pause the system immediately to stop the flow of sealant, inspect for the problem area and provide an on the spot solution before resuming the seal process.

Some of our formulas may leak into the places where your air was previously leaking – attics, garages, and wall cavities. This is totally harmless and will dry. As part of our process, we filter the air to make sure none of our sealant vapor escapes into your living areas.

No. Our certified technicians are trained to protect all of your home equipment prior to sealing. Our formula is delivered via a temporary access point. Some items, like humidifiers or UV lights, may need to be removed and then re-installed as a precaution. Or, these items may simply be bagged or covered. If you have any extra-sensitive or expensive electronic equipment, we do recommend that you cover it – especially if it is close to air returns or registers. You don’t need to cover any furniture. Our technician will take care of all this for you.

It depends on how much duct work you have, and how many leaks you have, but generally about two hours.

We guarantee our work for at least 10 years, and we’ve stress-tested it up to 40 years in homes. We expect your heating and cooling systems to work efficiently for as long as you own your home.

Sometimes, but not always. Any ducts that are extremely dirty should be cleaned first. We find this most often in older houses. Our technician will take a look at this during the initial inspection, and recommend a cleaning if needed.

Yes. Ducts from all types of materials can be successfully cleaned after being sealed. Our formula is a very durable substance that remains flexible and pliable.

No. Our formula doesn’t coat or line your ducts. The only sealant remaining after our technician is done will be over the leak that was sealed.

Not really. This noise is usually caused by two things – either the ductwork is too small for the size of the furnace or air conditioner you have, or the air flow through the indoor coil of your system is restricted for some reason. A contractor can identify the cause of any “loud” equipment and can recommend a solution for noise reduction.

The primary causes of condensation on ductwork in unconditioned crawlspaces and attics is missing or otherwise inadequate duct insulation, no or poor vapor barrier on the ducts and/or too much moisture in the ambient air. If the above are addressed properly this usually eliminates or minimizes the problem greatly. Sealing the crawlspace is generally recommended as well, and a vapor barrier on the crawl space floor or ground to decrease moisture absorption into the air is a good idea. A free-standing dehumidifier should also help. Aeroseal may help to a lesser degree if duct air leaks beneath insulation are causing the duct surface temperature to reach dew point, which is the temperature when condensation begins to form. Over time this condensation will degrade the insulation’s R-value and its ability to prevent the duct temperature from reaching dewpoint.

Water getting into your in-slab ductwork is typically a sign of a much larger drainage issue with your home and sealing your ducts is not the solution to your problem. We recommend that your first step be to have a licensed contractor review your drainage situation.