How to attach rigid insulation to crawl space floor
I am located in Zone 3B, Orange County Ca.
I am going to seal my crawl space and insulate the walls with rigid insulation. Here is the code from the CEC Residential Compliance Manual:
“Insulation: The R-value of insulation placed on the foundation stem wall shall be
equal to or greater than the wall insulation above the raised floor. Stem wall
insulation shall run vertically along the stem wall and horizontally across the
crawlspace floor for a distance of 2 feet (24 inches).”
What is the best way to attach the rigid to the ground (and seal the 90 degree joint)? I did not want to use batt insulation in this application, but based on this requirement, it seems better suited to this condition.
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