The answer to 'cost to replace underlayment' is that the cost can vary significantly depending on factors like the size of your roof, the type of underlayment material, and your location. Typically, the cost to replace roof underlayment ranges from $1 to $5 per square foot, but it's best to get quotes from local roofing contractors to get an accurate estimate for your specific project.
The underlayment is an essential component of your roof, acting as a protective barrier between the roof deck and the shingles. Replacing it is often necessary when the existing underlayment has become worn, damaged, or is no longer providing adequate protection. The cost can also be influenced by the accessibility of the roof, the complexity of the job, and any additional repairs that may be needed.