Roof Underlayment Replacement Cost: What You Need to Know: Fast-Track Guide to Understanding Your Roofing ExpensesSarah ThompsonJun 15, 2025Table of ContentsFactors Affecting Replacement CostOther ConsiderationsBudgeting for Roof ReplacementFAQTable of ContentsFactors Affecting Replacement CostOther ConsiderationsBudgeting for Roof ReplacementFAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeWhen it comes to roofing, understanding the roof underlayment replacement cost is crucial for homeowners. Roof underlayment plays a vital role in waterproofing and insulating your roof, ensuring it remains in good condition. So, what should you expect when it comes to costs for a replacement?The average cost for roof underlayment replacement can vary based on several factors including the type of underlayment used, the size of the roof, and labor costs in your area. On average, homeowners can expect to pay between $0.90 and $1.50 per square foot for underlayment materials alone. For a standard house with a roof size of around 1,500 sq ft, you’re looking at material costs ranging from $1,350 to $2,250.However, it’s important to factor in labor costs as well. Labor can cost anywhere from $1.50 to $3.00 per square foot, pushing the total replacement cost for materials and installation to about $4,000 to $7,000. This estimate varies depending on the complexity of the roof and local labor rates.Factors Affecting Replacement Cost1. **Type of Underlayment**: There are various types of underlayment available, including felt paper, synthetic underlayment, and ice and water shields. Each has different costs associated with them. For instance, synthetic underlayment might be more expensive but offers better performance.2. **Roof Size**: Naturally, the larger your roof, the more materials you will need. Make sure to accurately measure your roof to get a precise estimate.3. **Labor Costs**: Labor prices fluctuate based on your geographic location and the company you hire. It’s wise to get multiple quotes from local contractors to find the best deal.Other ConsiderationsWhile thinking about roof underlayment replacement, consider the potential benefits of upgrading your underlayment. Choosing a high-quality underlayment can improve the longevity of your roof and can potentially save you money in repairs in the long run.Budgeting for Roof ReplacementIt’s advisable to budget not only for the replacement of underlayment but also to include some additional costs that may arise, such as potential repairs needed once the old underlayment is removed.FAQQ: What is the best type of underlayment for roofs?A: The best type of underlayment depends on your specific roofing needs, but synthetic underlayment is generally considered superior for its durability and performance.Q: How often should roof underlayment be replaced?A: Typically, underlayment should be replaced during a major roof renovation or if it shows signs of wear and tear, such as cracking or degradation.Home Design for FreePlease check with customer service before testing new feature.