Beat August heat in Chatsworth by tightening the thermal boundary: seal can lights, insulate hatches

https://holdenerev579.theglensecret.com/blown-in-vs-spray-foam-for-chatsworth-homes-1

Beat August heat in Chatsworth by tightening the thermal boundary: seal can lights, insulate hatches, add radiant barrier, balance ventilation, and fix duct leaks to keep ceilings cool and bedrooms comfortable.