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Frequently Asked Questions for Home Insulation

Q: Why would my house need to be re-insulated?

A: Simply put, it will save you money and make you more comfortable.  As energy prices have risen over the years, so have the benefits of insulating your home.  Many homes in the Denver Metro area have been built with inadequate or ineffective insulation materials.  Energy was cheap when most of the homes were developed, so the idea of insulating them properly was not a priority when they were designed and built.  By adding insulation to your attic and walls, you can have a much more efficient and comfortable home. This will, in turn, lower your heating bills.  Also, the more insulated your home is, the less greenhouse gasses are emitted into the atmosphere on your behalf.  Furnaces also run much less frequently in higher-insulated homes, increasing their lifespan and saving money as well.

Q: How much insulation do I need?

A: Ultimately, it depends on the type and amount of insulation you currently have in your home. Contact us for an estimate and information on making your home as efficient as it can be.

Q: How does insulation work?

A: Insulation slows the temperature transfer from a hot source to a cold source.  There is no stopping heat from leaving your home in the winter but the proper amount of insulation can slow it down considerably.   The driving force behind heat transfer is the difference in temperature between the warm inside and cold outside.  The greater the temperature difference, the faster the heat will leave the home.  Here in the Denver Metro area we can expect to see temperature differences up to around 70 degrees.  By bringing the total level of insulation in your attic to at least fifteen inches of cellulose, around an R-50, the transfer of heat will be slowed to the highest degree under these temperature differences. 

Q: Why is one room of my house so much colder then the rest of them?

A: Simply put, not all rooms are insulated equally.  It is very common that the coldest room in the house is the one with the greatest surface area of exterior wall. This allows the heat to leave that room faster than the rest of the home. In cases such as those, insulating these outside walls can make a tremendous difference in keeping the room warm and comfortable. In many cases, the coldest room is the one over the garage. In this case, by better insulating the garage ceiling we can slow down the transfer of heat out of the room drastically. Often in homes we see rooms that are missing insulation due to an oversight by the builders. In cases like these, it is like having a window open all winter long. Properly insulating those areas make the greatest difference.

Q: Why is my house drafty when windows and doors are closed?

A: Sometimes drafts can be felt in a closed house.  When your home is warm and it is cold outside, the temperature difference causes air movement.  Insulation in the walls and ceilings slow this movement, but with inadequate insulation the movement happens quickly creating drafts.  By re-insulating your wall cavities with dense pack cellulose, we can significantly reduce the movement of air from outside to inside.

Q: Can my home be insulated too well?

A: Believe it or not, you need fresh air coming into the home even in the winter time.  In the rare case that the home is insulated too well, a blower door test and furnace check may be needed to ensure that harmful pollutants won’t accumulate inside.   If this is the case, it may be necessary to install a fresh air return. However, this is highly unlikely to happen unless your home was built recently and to the highest insulation standards.

Q: Will my house need to be cleaned after Installation?

A: CHC takes a lot of pride in leaving your home as clean as it was when we arrived.   We use tarps to protect the carpet and floors and take great care to clean up afterwards.  Also, we cover that attic entry from above while blowing the insulation, which keeps excess dust out of the home.  Re-insulating the attic space with cellulose will not cover your house in dust.  The small amount of dust that gets into the home is vacuumed up at the end of the job by our technicians. Re-insulating the wall cavities with dense pack cellulose is dusty by nature.  In order to pressurize the wall cavity with cellulose we have to blow it in at a high rate, causing insulation dust to become airborne.  In order to get the job done correctly, dust must be created.  CHC will always explore the option of insulating the walls from the exterior of the home, which cuts back drastically in the amount of dust introduced into the inside the home.  If insulating from inside the home, holes must be drilled in the drywall about every 16 inches, and insulation blown into the cavities.  The mess will be prepared for and managed, but it has to get dusty.  Once the cavities are filled, the holes are patched and arrangements can be made to have those areas re-textured and painted so that they blend in with the original look.

Q: Is the dust from the job potentially dangerous to my family’s health?

A: No.  It is no different than standard dust that collects in your home and it contains no dangerous qualities.  Unlike materials used in residential homes in the past, namely lead paint and asbestos insulation and siding, the dust from cellulose insulation is benign in nature.

Q: Will insulating my home make it cooler in the summer?

A: Yes.  Insulation helps maintain the desired temperature inside your home regardless of what the temperature is outside.  However, it is important to realize that there is a difference in your home’s heat sources from season to season.  In winter, the heat comes from a furnace which burns gas or electricity and releases ambient heat.  In summer, your home absorbs radiant from the sun. Because of the scientific nature of these differences, you will see a greater advantage from insulating in the winter time. If keeping your home cool is the primary reason for re-insulating your home, we may suggest  a Whole House Fan or Attic Fan instead.  For details on how this system works, click here.

Q: What is air sealing, and why does it need to be done?

A: Air sealing is done in conjunction with almost all insulation jobs we provide. It is important in order to seal gaps in the attic, and slow communication of air from the attic space into the living space. This helps keep the home warmer in the winter time and decreases the stack effect in the home.

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