Roger shows Kevin the right way to remove a hydrangea with roots that are undermining the foundation of the house. Then Tom shows Kevin the final exterior paint color selections while painting contractor Mauro Henrique offers strategies for working with the potentially messy new raspberry red body color. Kevin travels to Richburg, SC, to visit the not-for-profit Insurance Institute for Business & Home Safety (IBHS) where they are conducting the first ever indoor hailstorm in their "Mother Nature Chamber" to see how various building materials hold up to destructive hail. Back in Arlington, Norm finds Tom doing some building science of his own, going the extra mile to keep water and dampness at bay in the basement.