Is spray foam insulation worth it?

spray foam insulation

What homeowner isn’t conscious of their energy bills every month?

No matter if it is summer or winter, we are all turning things off to save money, or find a way to make things work more efficient, like the cooling and heating. With that mind, are you have you looked at having spray foam insulation added to your attic? 

Here, we have answered a few commonly ask questions about spray foam insulation, and hopefully that includes information to help you determine if this is the way you need to insulation your home. The first question is what are the pros and cons of spray foam insulation?

Spray Foam Insulation – The Pros

Industry experts recommend spray foam insulation in existing and new build homes. Considered to be high performing product, spray foam insulation provides an air barrier and vapor barrier while insulating your home, making your home more energy efficient so that your HVAC system doesn’t work as hard to cool or heat your home. Your electric and gas bills are lower because of this efficiency. Other benefits of spray foam insulation include: 

  • air leakage is essentially eliminated
  • heat loss is prevented
  • ideal insulation for attics, floors, roofs, walls
  • a higher R-Value other insulation materials  
  • reduced moisture accumulation
  • additional  vapor barrier not needed
  • seals up any awkward spaces 
  • effectively eradicates air drafts

Spray Foam Insulation – The Cons

There is only one con, but it something to be considered. Because spray foam insulation is a superior performing product in comparison to other insulation materials, the initial installation has a higher upfront cost that is often more than most homeowners have budgeted. While the ROI is great, it is achieved over a longer period of time.  

Other Insulation Materials: Fiberglass and Foam Board

When comparing spray foam insulation or fiberglass for your home, consider that fiberglass insulation is manufactured from glass fiber in either batt rolls or blown in loose fill. It does provide satisfactory capacity and is ore affordable for most homeowners, a DIY homeowner can do their own installation. Using it in the basement requires additional installation of vapor barrier, an additional expense that should be factored in the decision.

  Between spray foam insulation vs foam board, the following facts about foam board should be considered when choosing: 

  • Opportunity increased for penetrations because it is mechanically fastened
  • Decreased  flexibility due to rigidity format
  • When installed perfectly, provides the best air sealing and insulation
  • Increased install cost for time-consuming process
  • Often need addition of other form of  insulation to get the best results 

Should I spray foam my attic?

There isn’t any shortage of insulation products to choose from today, but the most recommended is spray foam insulation, contractors boast about the long-term and short-term benefits offered by this product when the open-cell form of spray foam insulation is used. While it is not a DIY insulation product, only installed by professional contractors with the proper equipment and training, it will have the biggest ROI over time in comparison to other types of insulation materials. 

Is it better to insulate attic ceiling or floor?

For your home to get the optimal energy efficiency, it needs to be insulated starting at the roof and to the floor. If your attic is unfinished, insulation should be placed between the floor joists and then over the floor joists, using an open-cell with spray foam insulation.  If the attic has air distribution, insulate the rafters as well. For a finished attic, insulation should be installed between the wall studs and exterior wall and roof rafters. The exterior walls, including the internal walls attached, unheated garage should be insulated. 

foam insulation application

Can you over insulate a house?

The purpose of spray foam insulation, or any insulation, is to make your home more efficient in cooling or heating by sealing the interior from the elements. However, it is possible to over-do the insulating to the point the house isn’t breathing. When a house can’t breathe, moisture is trapped inside the layers, creating the perfect place for mildew and mold to grow. 

When asked how long does spray foam insulation last, we can tell you that between spray foam insulation and mortgages, you’ll have your mortgage paid off long before you’ll need to reapply the spray foam insulation.  

The International Association of Certified Home Inspectors advises that spray foam insulation and wrap tape insulation have a life expectancy of eighty years or longer. Other types of insulation have a life expectancy of 100 years which includes, cellulose, foamboard, loose fill, and rock wool insulation materials. 

The number one concern for any homeowner when choosing an insulation material is the expense.  Spray foam insulation is the most expensive, but also will have a higher ROI over a longer period of time.  If you’re going to be in your house for years, then it is worth the investment. Call (314) 786-3732 today.