Re-felting a roof refers to installing a new layer of roofing felt (underlayment) beneath the shingles or other roofing material. This underlayment protects the roof deck from moisture and wind-driven rain. Understanding the cost involves considering materials, labor, roof size, and any deck repairs. This guide outlines current U.S. costs, key drivers, and practical budgeting tips for homeowners evaluating a re-felt project.
What Does It Cost To Re Felt A Roof?
Costs to re-felt a roof vary based on the roof’s size, slope, geographic area, and the condition of the decking. For most residential projects, the price range reflects both materials and labor. Typical estimates fall within a few hundred to several thousand dollars, depending on the scope. Homeowners should expect costs to cover underlayment material, labor, and any minor prep work. If deck damage or fascia repairs are needed, costs can rise significantly.
Key Cost Drivers To Consider
- Roof Size: Measured in squares (1 square = 100 square feet). Larger roofs require more material and labor, increasing overall cost.
- Underlayment Material: Asphalt felt is common and affordable, while more premium or synthetic underlayments cost more upfront but may offer longer life.
- Existing Deck Condition: Damaged or rotten decking requires repair or replacement, adding to the project cost.
- Removal vs. Overlay: If old felt is adhered and in good condition, some contractors may overlay; full removal and replacement cost more but provides a fresh start.
- Roof Access And Height: Steeper or harder-to-reach roofs increase labor time and safety costs.
- Location: Regional labor rates and material costs vary across the U.S., influencing total price.
Material Options For Roof Felt
The most common underlayment for residential roofs is asphalt felt, also known as roofing felt or paper. It typically comes in 15-pound or 30-pound weights, with newer synthetic options offering higher durability at a higher price. Material considerations include:
- 15- to 30-Pound Asphalt Felt: Budget-friendly, adequate for many homes, usually installed in a single layer.
- Synthetic Underlayment: Higher tear resistance and longer lifespan, often more expensive but may reduce long-term maintenance.
- Self-Adhering Underlayment: Provides a moisture seal; installation requires careful surface prep and can add to upfront costs.
Labor And Installation Details
Labor costs cover surface preparation, removal of old material if necessary, and installation of the new underlayment. Factors affecting labor include roof pitch, complexity, and material type. On a typical residential roof, labor ranges from about $1.50 to $4.50 per square foot, depending on roof complexity and region. Additional charges may apply for:
- Deck repairs or replacements
- Flashing replacement or repair
- Vent pipes, chimneys, or skylose adjustments
- Waste disposal and haul-away fees
Cost Scenarios And Examples
Below are representative price ranges to help homeowners estimate a re-felt project. All figures are ballpark ranges and can vary by market and project specifics.
| Situation | Material Cost (per sq ft) | Labor Cost (per sq ft) | Typical Total (per sq ft) |
|---|---|---|---|
| Standard 15-30 lb Asphalt Felt, intact decking | $0.40 – $0.90 | $1.50 – $3.50 | $1.90 – $4.40 |
| Synthetic Underlayment, intact decking | $0.75 – $1.50 | $1.80 – $4.00 | $2.55 – $5.50 |
| Removal of Old Felt and Deck Repairs | $0.50 – $1.20 (additional) | $2.00 – $4.50 (additional) | $2.50 – $5.70 (additional) |
Example budgeting by roof size (sizes in squares):
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- 500 sq ft roof: Roughly $950 to $2,200 for standard felt replacement plus any deck repairs
- 1,000 sq ft roof: Roughly $1,900 to $4,400
- 1,500 sq ft roof: Roughly $2,850 to $6,600
Practical Budgeting Tips
- <strongGet Multiple Quotes: Compare three to five local contractors to gauge fair pricing and service quality.
- <strongClarify Scope: Confirm whether removal, deck repairs, and flashing replacements are included or billed separately.
- <strongCheck Materials Warranties: Some synthetic underlayments offer longer warranties, which can impact long-term value.
- Ask About Permits: Some locales require permits for significant roof work; verify who handles permitting and related costs.
- Plan For Future Upgrades: If a full roof replacement is due soon, some contractors offer bundled pricing for re-felting in conjunction with future shingle replacement.
Frequently Asked Questions
How long does re-felting a roof take? A typical re-felting job for a standard single-family roof may take 1 day to 2 days, depending on size and complexity. Weather conditions can affect scheduling.
Is re-felting necessary after a reroof? Not always. If the existing underlayment is in good condition and remains intact, some projects don’t require replacement. Most repairs or replacements are recommended when the deck is exposed or damaged.
Can I save money by DIY re-felting? DIY is generally not recommended for safety and warranty reasons. Roof work involves height risks and requires proper installation to prevent leaks.
Conclusion
Re-felting a roof provides essential moisture protection and can extend the life of a roof system. By understanding material options, labor considerations, and local price factors, homeowners can budget effectively and select the best solution for their home. For accurate planning, obtain written estimates that itemize materials, labor, and any deck or flashing work.