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No. The trapped air gives you your insulating value. When you squeeze the old and new together you will not gain anything.

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Q: Can new basement ceiling insulation be placed over old insulation?
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You have ceiling light spotlight can you lay loft insulation over them?

See Discussion page.


You'd like to add insulation to my basement ceiling and attic Is miracle wrap insulation all it's cracked up to be?

Depending on the attic installation, you need a perforated product over the floor so condensation is not a problem. I recommend a Fire Rated Class 1 Class A Metalized Aluminum Perforated Radiant Barrier foil. On the attic "ceiling" or roof rafters, you can apply either a bubble/foil or just radiant barrier foil product. Right now there is no government rebate on just foil products so bubble is a good choice if that is important to you. Otherwise, just buy the foil! In your basement ceiling, you can use either product again, however, you will get more R-Value with a bubble product on the ceiling. -EcoFoil


What goes up first in new construction wiring or insulation?

In new construction, typically the wiring is installed first before the insulation. This allows for the electrical components to be safely and properly placed throughout the structure before the insulation is added to the walls.


IS there a solution for water in the basement when doing home construction and improvement?

When you are constructing a basement you need proper drainage and a layer of sealant over the walls, ceiling and floor. Statefarm.com and doityourself.com have comprehensive instructions on how to accomplish this.


Can you put sheet plastic over ceiling insulation?

Not a good idea. It really needs to breathe. You can trap moisture and create a mold situation.


Why is carpet cold?

If you have a wood floor that is over a crawlspace or basement, there may not be any insulation. Heat rises. Also, if you have drafty doors or windows, that may have an effect.


What is insulation contact recessed lighting?

Insulation contact recessed lighting refers to a type of light fixture that is designed to be in direct contact with insulation in the ceiling without creating a fire hazard. This type of lighting is specifically rated and tested to ensure that it can be safely installed in insulated ceiling spaces without causing overheating or fire risks.


Can you put kraft faced insulation in your attic over already installed blown in insulation and if so would you put the paper side down that is toward the rooms below?

I went to a seminar about attic insulating materials and this is what I learned. If you already have blow-in insulation in your attic you shouldn't need more fiberglass. Instead, you will want to install a reflective radiant barrier insulation. Fiberglass and cellulose are designed to slow down heat escaping so you eventually lose most of your heat through the ceiling regardless. You need something to re-direct the heat once it passes through the blow-in insulation. Radiant Barrier will reflect a majority of the heat back once it escapes your blow-in insulation. I bought some Ecofoil online and just rolled it out over top of my existing blow-in insulation, it was very easy. When installing radiant barrier over the attic floor you must use the perforated radiant barrier for maximum breathability. Moist air that is created inside your home must be able to escape as it rises through your ceiling. If a perforated radiant barrier is not used, the moisture will be trapped in between the barrier and your ceiling. When trapped this will cause condensation to form inside the building materials and insulation creating damage and mold.


Can roll aluminum insulation be installed on top of blown in insulation?

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How close to the ceiling does a house fly get before it flips over and lands?

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Henry built a machine that consisted mostly of ropes and pulleys The machine was designed to lift his dirty laundry from his basement bedroom up and over to the laundry room He placed a 20 pound bas?

Dumb waiter


Can you install carpet over concrete in a basement?

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