Second Story Addition Gets Foam Insulation

Work continued on our latest Naperville project today with the installation of the spray-foam insulation.  It’s very similar to Great Stuff, only on a much larger scale.  The foam we used on this project gets a whooping R7 per inch!  That allows for up to an R25 valued in a standard 2×4 exterior wall.  That’s a far cry from the standard fiberglass insulation products that only allow for an R13 in a 2×4 wall.

On this project we used 2-3/4″ of foam for an R20 value.  This new 650 square foot addition will be far superior in insulation value to the existing home.  As well as offering a superior Rvalue, foam also acts as a great barrier to air infiltration.  The foam seals virtually all gaps in the walls allowing for no air movement.  It is also impervious to water so no moisture can move through the wall.  It really is a great product and we are looking forward to using it more on future projects.