Foam vs Fiberglass – Which Insulation Type Rocks the Show

Insulation is a great way to put a hold on your high energy utility bills. It normalizes the temperature within the house. However, if your house is already insulated for long, you need to carry out an energy audit to get it inspected before suggesting you insulation replacement or repair. But if there is a need for insulation removal in Los Angeles, you need to focus on the right type of material that will act as a proper replacement. Foam and fiberglass are two popular options for new insulation of your home walls and attic.  However, foam is a better option when it comes to managing air infiltration. 

The R-Value of Fiberglass Foam

The R-Value of fiberglass is 3.2 per inch of the total thickness. For a R-13 fiberglass, the home having 2 by 4 wood framing can have 3.5” wall cavity. If the walls have framing of 2 by 6 lumbar, then the cavity will be 5.5”. This will ensure the requirements of R-21 fiberglass. But what about the older homes? They can also have similar insulation values through the use of loose-fill fiberglass. This is blown in different places beneath the walls using commercial installers. The affordable cost makes it a popular option for many. 

The R-Value of Closed-Cell Foam

Also known as Spray polyurethane foam, they are available in fluid form and once applied, they harden quickly. They are sprayed on the surfaces and offers R-Value around 6.2 per inch of the total thickness. However, R-21 for wall cavities around 3.5” and R-33 for walls around 6” studs is required to achieve that R-Value. Closed-cell foam acts as a barrier to air and moisture. This helps in creating a nice soothing atmosphere within the home indoors.  

So,  Which One to Pick- Foam or Fiberglass

Compared to foam, the fiberglass insulation option is affordable. It is also easier to install. So naturally, fiberglass is the best choice for DIY home insulation projects. On the other hand, foam insulation promises for greater impact. It offer better energy savings and can be great option for houses located in regions of climatic extremities. However, if want to have the best insulation option for your home, it is best to have a combination of both. Say your house features a wall cavity around 5.5”. So, this can be easily filled in using foam spray. Now, for sealing the walls, you can use R-13 fiberglass insulation option that promises affordability and effective insulation properties. Talk to expert general contractors to have some idea on the part. It will help you proceed with the right choices. You can hire professionals with experience to refrain yourself from taking the responsibility.