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HOW INSULATION CAN If You Don't Give The Trapped Moisture an Escape Route, It Will Take he Paint With It. PEEL YOUR PAINT Paint problems with wood sidings are nothing new. But complaints have increased in recent years in homes retrofitted with blown insulation. The problems have occurred with numerous types of sidewall insulation: cellulose, fiberglass, tripolymer foam, and others. Similar problems have turned up in new houses where wood siding is installed over rigid-foam sheathing. Not only is the paint peeling in some of these homes, but the siding itself is cupping, warping, splitting, and in some cases, falling off the walls. Bear in mind that there are, of course, thousands of older, re-insulated homes with no problems at all, as well as thousands of new houses with