The answer to the price of new underlayment is that it can vary significantly depending on several factors. Typically, the cost of underlayment for a new roof can range from $1 to $5 per square foot, with higher-end materials costing more. The specific price will depend on the type of underlayment, the size of the roof, and your location.
Factors that influence the cost of underlayment include the material (such as asphalt-saturated felt, synthetic, or rubberized), the thickness and quality, and any additional features like fire resistance or waterproofing. The complexity of the roof and the accessibility of the work area can also affect the overall cost. Getting multiple quotes from local roofing contractors is essential to understand the typical pricing in your area.