Why Insulate? — An Introduction to Insulation

Although insulation is an important element of building, it is often the least understood. Many people aren’t aware of the multiple places energy is lost in a home. As an Owens Corning® Certified Energy Expert®Goley understands the science behind the building envelope. So, you can turn to us to learn more about the benefits of insulation in St. Louis and our surrounding areas.

Insulation lays a foundation of energy efficiency for residential, commercial and industrial structures. Whether you are remodeling a home or building a new business, there are many benefits of insulation:

  • Increased, more consistent interior comfort all year long
  • Reduced energy usage
  • Lower heating and cooling costs
  • Less wear and tear on HVAC equipment
  • Reduced noise transmission for a quieter space
  • Improved air quality
  • Reduced moisture intrusion
  • Less overall environmental impact

How Insulation Works

Heat flows from higher temperature areas to lower temperature areas, creating temperature fluctuation within a space. Insulation wraps your home in a protective blanket, reducing heat flow in order to keep the heat out during warmer months and the heat in during cooler months. Insulation is an excellent noise absorber and helps to reduce sound transmission from both outside and within a home, creating a quieter space with less reverberation. Insulation also allows other energy-efficient components, such as air sealing, to do their job, forming a comprehensive insulating system that helps maintain consistent temperatures and moisture levels, reduce energy usage and increase monthly utility savings.

What Is R-Value?

The “R” in R-value stands for resistance to heat flow. The higher the R-value, the higher the level of resistance and the greater the insulating power. R-value requirements vary depending on climate and building type.

Below is an example of how R-value relates to the amount of insulation used in a typical attic. The thicknesses listed are for Owens Corning PROPINK® L77 Loosefill Insulation blown in the attic and not a general rule of thumb for any other brand/type of insulation in any other areas/applications. Goley Insulation can provide you the correct amount of insulation for your project and the R-value you want to achieve.

R-value Minimum Thickness (in)
R-13 4.75
R-19 6.75
R-22 7.75
R-26 9
R-30 10.25
R-38 12.75
R-44 14.75
R-49 16.25
R-60 19.5

Where to Insulate

Insulation should be installed in the walls, floors, attic space, basement and crawlspace. A more detailed list includes:

  • Ceilings with unheated spaces above, including dormer ceilings
  • Knee walls of attic spaces finished as living areas
  • Sloped walls and ceilings of attics finished as living areas
  • Cathedral or vaulted ceilings
  • Around perimeters of slabs
  • Floors above vented crawl spaces
  • Floors over unheated or open spaces such as over garages or porches
  • Basement walls
  • Band and header joists
  • Interior walls, ceilings or floors where extra sound control is desired
  • Floors over unconditioned basements

 

Insulation Types & Materials

Insulation is manufactured in a variety of forms and materials to suit a range of efficiency, structural and budgetary needs. Each option brings its own level of durability, versatility, R-value and cost.

Insulation Types

  • Batt & Roll
  • Loosefill
  • Rigid Foam
  • Spray Foam

Insulation Materials

  • Fiberglass
  • Cellulose
  • Spray Foam

How Much Insulation is Enough?

The amount of insulation needed varies depending on location, building type and materials. We will consult with you to provide R-level recommendations for insulation in St. Louis, as well as throughout Missouri and Illinois.

Things to Consider When Insulating

  • What type of insulation is being used?
  • Does the insulation meet or exceed local building codes and national recommended insulation levels?
  • How effective is the insulation (thermal performance, acoustical performance)?
  • Is the insulation resistant to moisture, fire and settling?
  • Is the insulation material safe and sustainable?
  • Is the insulation cost effective?

Home Energy Auditing

An energy audit is an in-depth assessment of your building envelope conducted by a certified energy rater. According to RESNET, the authority on home energy auditing, home energy audits have three main objectives:

  • Figuring out where and how energy is being lost
  • Locating inefficient operating systems
  • Determining cost-effective ways to enhance home efficiency and comfort

Knowing the energy trouble spots of an existing structure or the potential energy issues of a new structure allows for comprehensive solutions to be used for increased efficiency. You can learn more about our energy audit process here.

Your House as a System

Though insulation is one of the most essential and cost-effective ways to create overall efficiency, there are many factors to take into consideration. Insulation and air sealing combined with energy-efficient appliances, windows, doors, lighting and HVAC equipment build a whole-house efficiency system that will prove beneficial throughout the year and for years to come.

 

Owens Corning Insulating Systems, LLC is a manufacturer of durable, high-quality fiberglass products and does not sell or endorse other insulation industry products.

Insulation is one of the most cost-effective ways to save energy and reduce monthly energy bills. Contact us to learn more about the benefits of insulation.

If you still have questions, we have answers! Visit our Insulation FAQs page for even more information about the benefits of insulation. Plus, be sure to check out our YouTube page for informative videos about our behind-the-scenes processes and products.

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