DIYNetwork.com experts show how to repair a water damaged subfloor..Learn how to repair your water damaged ceiling and about the causes and effectsociated with water damage on your property..Before beginning repairs to walls or ceilings that have been damaged by water, locate and stop the source of the leak or you will be repairing the same damage over .Replacing water damaged drywall is required when the core of the drywall is compromised. You will need to patch the entire damaged area..
Repair bubbling joint compound and paint using a putty knife to scoff all the damaged material. Cut and remove anyling drywall tape. Brush away the scdust and prime all the visible damage with primer sealer to block the stain and seal the damaged surface..