Do you feel like your house is always dusty, in spite of how much you vacuum and clean? Have you tried all the tricks – HEPA vacuum cleaners, air cleaners, taking your shoes off before coming in the house, washing the dog…. all to no avail?
Chances are good that you’re being plagued by a leaky duct and air handling system.
When you have leaks in your ducts (virtually all duct are leaky) dust from the attic gets sucked into the ducts and distributed throughout the house. Even if you have an excellent filtration system on your air handler, the dust can be sucked in from places that don’t get filtered, and blown into your home, usually leaving fine gray dust everywhere.
Before you call in a heating/cooling (HVAC) contractor, there are a few steps that you can take yourself.
The inside of a wall filled with entrapped moisture
I just received a question that was too complex to answer quickly, and so interesting that it deserves an entire post. Unfortunately, it represents a situation that occurs far too often.
To summarize, the question came from a reader who opened a small hole in their wall and found condensation on the vapor barrier at the inner surface of the wall. The question is, what could cause this?
Here are some more clues:
The moisture was observed during the winter
The hole was cut in a south wall
The home has 3″ foam board sealed to the exterior wall
A 2×4 framed wall was built inside this wall and insulated with Roxul
A 6-mil poly vapor barrier was then applied just behind the inner sheet rock
They did not measure high moisture towards the outer wall
Most walk-in attics are behind knee-walls – those little walls about 3′-5′ tall that intersect the sloping roof line. Usually the entire space would have been an attic, but they were reclaimed for living space and a wall was installed to make a bonus room. The resulting rooms are often neglected and poorly conceived and are the least comfortable areas of the house. In addition, their design leads to a variety of insulation and moisture problems that can be tough to rectify. Continue reading →
Fiberglass insulation against roof deck plus moisture = roof failure
In the first post, we looked at how adding insulation could lead to frozen pipes if the insulation was put in the wrong location. But, just like a sweater, if you put everything you want to be warm inside the insulation, you can keep your house and pipes happy and energy efficient.
This time, we’re looking at how to install insulation properly so that you don’t rot out your roof. Unfortunately, the photo above shows how not to insulate under your roof!
Sometimes, attics and insulation can be confusing. Usually they make a lot of sense, but occasionally, they’re really confusing! So when people ask “how do I insulate my attic?” – the only correct answer is: “it depends…”
Suppose you purchased this house this past October. You get your first electric bill and it’s really high, so, after reading Ted’s Energy Tips, you go up to the attic to look for problems and find this. “Holy cow!” you think – not only is there a space heater up in the attic, there’s all this missing insulation.”
During the winter, as I look around, houses yell out to me. Do they speak to you?
Look at this photo. It’s a beautiful day after a light snowfall. Half of the roof has virgin snow. The other half is totally melted. Clearly, the melted side is losing energy compared with the other side.
This winter, I encourage you to look at your roof after a cold night. If some of the roof is covered with frost or snow and some isn’t, ask yourself why? Sometimes, you’ll think that it’s the Sun melting the snow, but this photo is a perfect example. The roof faces south and gets lots of sun. Half isn’t melted, so obviously, it’s NOT the sun melting the snow.
A family friend recently told me of “issues” with their home heating system – “when it runs, the lights get halos around them from all the soot in the air.”
I couldn’t believe it when I heard this, and immediately warned him that the condition likely is making his family sick and could easily kill them. No joke.
Carbon monoxide poisoning is the “leading cause of accidental poisoning deaths in America” – it’s colorless, odorless and quickly affects your brain, knocking you out then killing you. In lower amounts, it can lead to chronic headaches, dizziness, depression, nausea and a host of other problems.
As we tighten up our homes to make them more energy efficient, we have to be particularly vigilant about keeping any combustion devices in the home tuned up and properly vented.