Reroofing is roof removal and replacement; by removing all layers of old roofing to expose the roof substrate which exposes defects such as dry rot, improperly nailed sheathing, sheathing damage or de-lamination, flashing defects that may be necessary to repair or replace prior to new roof installation. Timely roof replacement may be one of the most important home or building maintenance as it protects from all weather damages; sun, rain, wind, snow Having a structurally sound roof protects the inside of your home from potential damages.