Wet insulation must be removed, or it can cause mold or mildew to form or cause the roof or ceiling beams to rot. In general, block or laminate insulation or blown loose filler insulation (fiberglass or cellulose) can be installed over old insulation. An hourly air change means that all the air inside the house has been replaced by unfiltered, unconditioned air coming from outside the house. I'm referring to the air you've spent money on heating or cooling, filtering 26% of cleaning, dehumidifying or humidifying, it's completely lost to the atmosphere; poof, it's gone to never be recovered.
If you want to get a third major advantage by placing layers of cellulose insulation over fiberglass insulation, keep in mind that Bora Spray cellulose insulation has a boric acid content greater than 11%. That is, when an insect comes into contact with borate, it dies. And this also applies to mold and moldy organisms. Let's say you own a home from the 1980s in the Atlanta metro area and are interested in getting it.
Having installed or sold more than 6 million pounds of attic insulation since 1998, I've developed some rules. Available in fiberglass and cellulose varieties, blown insulation is made from loose fibers blown instead by a specialized machine. Blown insulation is commonly used in attics to insulate the floor or add more insulation if it's already present. It is also used to modernize existing homes that lack the proper amount of wall insulation, as it can be installed through a small opening between each pair of uprights with minimal remodeling. We have experience in residential and commercial projects and can install fiberglass and cellulose in new homes and buildings. Cellulose insulation costs more per square foot than fiberglass insulation.
It's only available as blow insulation, requiring special equipment to blow or pour into an existing enclosed wall or to open new cavities in walls, unfinished attic floors, and other hard-to-reach places. However, it does not degrade and its R-value does not decrease in extreme cold conditions or when compressed. As hot and humid as the Palm Beach area is, anything that can improve your comfort and reduce your cooling costs is a welcome addition. However, cellulose insulation is ideal for providing an additional R-value over existing attic insulation with little to no problem, as it completely fills the voids and voids left open by other forms of insulation. Not only does it reduce the hassle of replacing a home's insulation from scratch, but using cellulose insulation is also an easy way to insulate and reduce damage to the environment.
Cellulose insulation does not break down or lose its R-value in extreme cold conditions, making it a better insulation in cold climate areas. Having installed or sold more than 6 million pounds of attic insulation since 1998, I've developed a few rules. However, it will settle in attics until it reaches a stable density, just like other types of blown insulation. By adding a few inches of cellulose blown insulation over the fiberglass insulation, you'll make the home significantly less vulnerable to the uncontrolled air infiltration that stretches between the attic and the living room. When cellulose insulation is blown over other insulation, problems can arise if the existing insulation is wet.
The three main benefits, in my opinion, of adding a thick layer of fresh, fully borated cellulose to the insulation of your current attic. Whether you're insulating an attic or cavities in walls, foam insulation is a good choice for energy efficiency. Both are great ways to add insulation to a home that has lower than recommended levels of R-49 to R-60 in the attic or R-13 to R-21 in the walls, according to the U. S. Department of Energy.
Installing new insulation over existing insulation is a good way to keep the interior of a home comfortable all year round. Blown insulation is installed behind a special fabric to create a seamless blanket that fills gaps in walls, including around any electrical bumps. After installing a thick layer of cellulose insulation over existing attic insulation, your home is now more airtight and has fewer air changes per hour (ACH) between the air conditioner and your home's outdoor environment.
