floor insulation

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A One-Room Insulation Challenge

This poorly insulated addition has a pier foundation and is open to the wind from below

Posted on Jan 22 2018 by Scott Gibson

The one-room addition on Emerson W's home is not what anyone would realistically consider over-insulated: R-11 batts in the walls and R-19 at most in the ceiling. But the immediate issue is the floor. There's no insulation at all there, and because the addition sits on concrete piers, there's nothing to stop the wind from blowing freely below.

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Image Credits:

  1. Image #1: Emerson W
  2. Images #2, #3, and #4: Peter Yost

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The Best Way to Insulate a Floor

A homeowner in Arkansas weighs the benefits of mineral wool batts and sprayed polyurethane foam — but a third option may be the winner

Posted on Jun 2 2014 by Scott Gibson

Jim Wright's house in western Arkansas has a pier foundation that elevates floor framing about 40 inches off the ground. Unlike a house with a basement, crawl space, or slab foundation, there is no enclosure at the bottom of the house, so the floor is more or less like another exterior wall.

How, Wright wonders, should this be insulated?

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Image Credits:

  1. Jim Wright

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