Smart Roofing Systems

Commercial and Residential Roofing Contractors in Grand Rapids Michigan

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"We have recommended Smart Roofing Systems to several of our friends who have also been pleased with their work."
- Marshall , Cascade, Michigan

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How Insulation Works

Note the red area on the picture below that shows where the heat is going out from.

thermal image example of housing heat lossHeat flows naturally from a warmer to a cooler space. In winter, the heat moves directly from all heated living spaces to the outdoors and to adjacent unheated attics, garages, and basements - wherever there is a difference in temperature. During the summer, heat moves from outdoors to the house interior. To maintain comfort, the heat lost in winter must be replaced by your heating system and the heat gained in summer must be removed by your air conditioner. Insulating ceilings, walls and floors decreases the heating or cooling needed by providing an effective resistance to the flow of heat. The effectiveness of an insulated ceiling, wall or floor depends on how and where the insulation is installed. Let our team at Smart Roofing Systems make sure your job is done right the first time. Contact us for a free, no obligation estimate today!

What Is an R-Value?

Insulation is rated in terms of thermal resistance, called R-value, which indicates the resistance to heat flow. The higher the R-value, the greater the insulating effectiveness. The R-value of thermal insulation depends on the type of material, its thickness, and its density. In calculating the R-value of a multi-layered installation, the R-values of the individual layers are added. The amount of insulation or R-value you'll need depends on your climate, type of heating and cooling system, and the section of the house you plan to insulate.

Recommended R-value for insulation from the U.S. Department of Energy (

map of r-values by temperate zone

Zone Add Insulation to Attic Floor
Uninsulated Attic Existing 3-4 Inches of Insulation
1 R30 to R49 R25 to R30 R13
2 R30 to R60 R25 to R38 R13 to R19
3 R30 to R60 R25 to R38 R19 to R25
4 R38 to R60 R38 R25 to R30
5 to 8 R49 to R60 R38 to R49 R25 to R30

Exterior Wall Insulation Information

Properly insulated exterior walls in your house will not only increase comfort but also help you save on heating and cooling costs. For energy savings, you can add insulation to your walls in an existing house. If you're building a new house, you have many energy-efficient wall insulation options to consider. Smart Roofing Systems will help you determine the best selection for your new or existing home.

How do we know what the best selection is for your home? The answer is that the 'best' type of insulation depends on:

  • how much insulation is needed,
  • the accessibility of the insulation location,
  • the space available for the insulation,
  • price of insulation

Interior Wall Insulation Information

You'll find a couple types of insulation for you interior walls. However, for adding insulation to existing finished walls, you might first consider using a sprayed insulation. A spray in insulation can be added without much disturbance and usually has superior insulating qualities and levels. The Smart Roofing Systems team will complete the interior wall insulation process with easy, cleanliness and effientency.

The effectiveness of an insulated ceiling, wall or floor depends on how and where the insulation is installed.

We can help you find the right insulation combination for your unique home.  Contact us today.