How To Seal Leaky Windows In Winter

Dan has been in the HVAC industry for 23 years with experience ranging from installation and service to sales and distribution.

A gap in your duct work every bit small as this tin can still leak large amounts of air.

How Do You Ready Leaky Ducts?

Homeowners are looking for any manner possible to shave money off their free energy bills equally well equally not waste free energy to minimize their ecological footprint. Almost owners of newly built homes have the luxury of knowing that their habitation is "up to snuff" since codes and regulations in many municipalities have made information technology about impossible to build a home that is not energy efficient, but those who own older homes have improvements to make if they desire to cut down costs and waste matter.

While some of these improvements are expensive and typically require a skilled tradesman to perform, there are some that are quite elementary, cost very piddling, and just near anyone can practice. 1 of them is sealing up leaks in their ductwork.

At that place are 2 very cheap, very easy ways to fix your leaky ductwork yourself; HVAC tape and duct sealant.

Option ane - HVAC Tape

This is your basic foil tape (Polyken 337) and what I use for a typical, exposed duct type system.

What Is HVAC Record?

HVAC record is basically any record rated for use on HVAC systems. While there are sure tapes for certain jobs, they are all considered HVAC tape. For the purpose of sealing air distributing ducts, I've provided some images and descriptions of different types of tape that are normally used on both residential and commercial applications.

Small Duct Leaks Frequently Become Un-Noticed

"Pigeon-tailed" connections oft leak.

You probably noticed that good old-fashioned duct record isn't mentioned and that is because while duct tape had been the most commonly used for decades, it has begun to autumn by the wayside in the HVAC globe. While duct record is stiff, it simply begins to dry out and fall away, leaving leaks over time where the newer foil tapes do not. Don't worry, there are still a million other means to use our beloved duct tape...it just won't exist to seal your ducts.

I use this Polyken 337 foil record (also pictured higher up) considering information technology's wide plenty to bridge fifty-fifty the larger gaps but nevertheless can be cut downwards to size. It's besides the right thickness and sticks well.

Now let u.s.a. have a await at these images of common leak points and the basic foil record I applied to seal them. I chose basic record because information technology seals groovy, tears easy, and I tin cut it if I always demand to have the duct apart again.

Option ii - Duct Sealant (Not Duct Seal)

Pick your poison. Seal your duct past the gallon or by the tube. Whichever style suits you best.

Duct sealant is another product that is commonly used to seal up duct leaks. This pasty, thick, paint-like substance tin be applied to cracks and gaps in your ductwork with a caulking gun and spread with a paintbrush, or if using a gallon pail, merely scooped and practical directly with the paintbrush.

I recommend using a water-based sealant equally information technology holds upwardly well and cleans upwardly like shooting fish in a barrel too. Trust me when I say like shooting fish in a barrel clean up is important. I didn't pay much attending to this in one case and ended up shaving off my arm hair as a result. Information technology was not my proudest moment. Moving on...

Mastic sealer is probably the longest lasting choice for sealing your ductwork, but I would consider whether or not you'll ever demand to admission the expanse once again before using it. In spots that you may desire to open up up again, like near the evaporator coil that you lot may want to have cleaned or an cease cap where you may want to clean your ducts, I would use one of the tape options.

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What Is Aeroseal Duct Sealing?

I know I said there were 2 ways to seal duct, simply the cardinal words there were "easiest" and "your own."

Aeroseal is a very overnice system developed to seal ducts of all kinds, simply this is not a process that y'all as a homeowner can do yourself. It is typically far more than expensive than what most are willing to spend.

That said, it may be the but answer for those who take underground ducts or ducts that they cannot access to significantly seal by hand. It is also becoming more and more popular in new dwelling structure, as the cost is built into the purchase price and not coming directly out of your pocket all at once. Bank check out this video to see what Aeroseal is all near and how they practice information technology.

Note: Aeroseal is a brand name and there are other companies that employ the same type of technology. I am not recommending a brand or visitor here, merely the technology.

Practice It Yourself Duct Sealing

There is non a whole lot that I can tell you about duct sealing technique. It really is a pretty cocky-explanatory process. Apply the record or sealant over the holes and seams...pretty simple right? There are, however, a few things that might assist your job go smoother, exist more effective, and terminal longer.

• Use a water based mastic.
• Wear rubber gloves and old long sleeve shirt if using mastic. (Perchance a hat, too.)
• Whether you employ tape or mastic, make sure the surface of your sealing is clean and dry.
• Tapes volition stick much better if they are warm. Make sure your tape is at least room temperature and maybe fifty-fifty employ the tape while the estrus is running.
• Every trivial scrap counts. Comprehend all the holes and seams you lot tin can.

Pare the tape backing off a little at a time equally you get-go taping.

The Benefits of Sealing Your Ductwork

Many will argue that air escaping your ducts is nevertheless in the business firm, and then the energy is not really lost. They claim that little gaps, holes, and seams don't corporeality to much loss anyhow. I beg to differ.

If you lot add together up the square inches of leakage in an older dwelling's ducting, you'd detect that a large majority of homes would exist losing roughly the same amount of air as cutting a baseball game-sized hole in the duct. It is typically leaked into an unconditioned area like a basement or attic where it is not needed. So while you wonder why that i room is and so cold or hot all the time, consider that these lilliputian leaks can add up to roughly the aforementioned amount of air needed to oestrus and absurd a room.

The other consideration here is that nosotros're non only sealing the air in but the dust out. Seal both the supply and the return air ducts. Return air duct sucks air in so sealing them keeps smelly basement air and/or attic dust from creeping into our air supply also. Sure, our filter will become most of that but and so you'll be changing your filter and cleaning your ductwork more often.

This all leads back to the benefits of energy cost savings, a smaller environmental touch on, and better indoor air quality. Even if only one of these benefits appeals to you then it would be worth the fourth dimension and petty toll to seal up your ducts.

~ We're all in this together ~

Different Strokes for Unlike Folks

This article is accurate and truthful to the all-time of the author'due south knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

© 2018 Dan Reed

Dan Reed (writer) on May 08, 2018:

Thanks Robie! I matter you might effort to balance out temperatures in your house is to leave the fan running all the fourth dimension. I run mine about 320 days a year and information technology evens rooms out quite nicely while costing next to cypher. Y'all may even discover the A/C or furnace run just a flake less on milder days. I know it sounds weird to run the fan all the fourth dimension, especially in the winter, but it works.

Robie Benve from Ohio on May 08, 2018:

Great information Dan! At present I need to get look at my ducts, trying to figure out why two of my rooms are always the incorrect temperature. Thanks!

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