Home Insulation and R-Values

Sufficient and proper insulation in the home isof 3.14. Consequently an R-value of R-19 batt
critical for keeping your home both toasty warminsulation is approximately 6 inches thick.
during the winter months and comfortably coolThere are four main types of insulation used in
during the summer months.the home and they include:
When buying a new home, make sure the homeBatt or Blanket insulation - This is your standard
inspection includes an assessment of the insulationfiberglass or Rockwool insulation material. It is
situation within the home. Make sure the insulationused frequently in homes, and slides easily in
is compliant to your local building codes, andbetween wall studs and floor and ceiling joists.
preferably to the U.S. Department of EnergyRigid foam insulation - This is used frequently
insulation R-Value guidelines. Note that there areagainst basement walls.
different R-value guidelines for different portionsBlown in Insulation - This is chemically treated,
of the home, e.g. walls, ceilings, in between floors.shredded newspaper that is blown into walls,
The U.S. DOE also provides different R-valueattics, and between floor joists.
guidelines for different regions of the country. ForSpray Insulation - This is a two part liquid material
example in the upper New England area thethat is sprayed onto walls, and between attic and
recommend attic R-value is R-49, whereas inflooring bays. As it hits the surface area it quickly
Florida it is R-38.expands and hardens to form a tight and highly
Note that R-value is a term for describing theinsulated barrier.
resistance level to heat flow. The higher theSo whether you are looking to buy a new home
R-value the higher the resistance to heat flowor continuing to live in your current home make
transfer. Depending upon the type of insulationsure your house is properly insulated. You'll save
used, the R-value varies between a value of 3on annual energy bills and live more comfortably in
and 4 per inch of insulation thickness. For exampleyour home during those cold winter nights and
a typical fiberglass insulation batt has an R-valuesultry summer days.