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

https://holdenerev579.theglensecret.com/why-chatsworth-summer-heat-ruins-attic-insulation

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.