Tricky Crawl Space Insulation Question

I have 4 cottages that were at one time seasonal (not insulated).The cottages are built on concrete piers with open crawl spaces that vary in height from 2″ to 2″.Over… I have 4 cottages that were at one time seasonal (not insulated).The cottages are built on concrete piers with open crawl spaces that vary in height from 2″ to 2″.Over…Read MoreGreenBuildingAdvisor