Prices for roofing felt paper, also known as underlayment, vary by material, roll size, and installation needs. This article outlines typical cost ranges, typical per-unit pricing, and the main price drivers you’ll see when budgeting for felt paper on a roof. The “cost” of underlayment hinges on material type, square footage, and regional labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Asphalt-saturated felt roll (36 in x 400 ft) | $15 | $25 | $40 | Common starter choice for asphalt shingle roofs |
| Synthetic underlayment roll (36 in x 400 ft) | $40 | $60 | $90 | Higher tear strength, more durable |
| Per-roll replacement count (average 1,500–2,000 sq ft roof) | $1.50 | $2.50 | $4.00 | Based on typical roof area and roll coverage |
| Per sq ft installed (underlayment only) | $0.25 | $0.50 | $0.80 | Common for synthetic underlayment |
| Per roof square (100 sq ft) installed | $25 | $50 | $80 | Includes labor and waste |
| Labor for underlayment installation | $150 | $350 | $700 | Varies by roof complexity and access |
| Delivery/haul-away (per job) | $0 | $25 | $75 | Depends on distance and site access |
Assumptions: Midwest to Southern labor rates, standard 3-tab asphalt shingles, normal attic access, and typical roof pitch under 6:12.
What homeowners usually pay for roofing felt paper and why costs vary
Typical total price for a standard 1,500–2,000 sq ft roof falls in the $500-$2,000 range for underlayment alone. The overall cost reflects material choice (asphalt felt vs synthetic), roof size, and whether installation occurs during a new roof or a re-roof. Lower-cost asphalt-saturated felt rolls run about $15-$40 per roll, while synthetic underlayments are commonly $40-$90 per roll. Labor adds a sizable portion of the price, often $150-$700 depending on roof complexity and crew size. Per-square costs help compare options: about $25-$80 per roofing square for underlayment and installation, with higher figures for difficult roofs.
Key drivers include roof footprint, roll width, waste factors, and local labor rates. A larger roof increases roll counts and waste, while steeper pitches or restricted access can raise labor time and costs. For a simple, single-story home with a standard pitch, expect mid-range pricing; complex or multi-story homes push costs toward the higher end.
Breaking down the price into major cost components
Materials and labor are the two largest cost blocks. A typical breakdown looks like this: Materials (felt rolls and fasteners) 40–60%, Labor (installation and basic prep) 35–55%, Delivery/Disposal 0–5%, and Miscellaneous (warranty, overlaps) 0–5%. The following table shows common components by price range.
| Component | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials (felt rolls, nails, tape) | $15 | $40 | $120 | Depends on material type and quantities |
| Labor | $150 | $350 | $700 | Labor hours scale with roof size and pitch |
| Delivery/Disposal | $0 | $25 | $75 | Site distance and access affect cost |
| Waste allowance | $0 | $50 | $150 | Overage to cover off-cuts |
| Permits or inspections | $0 | $0 | $0 | Often not required for underlayment alone |
| Warranty/overhead | $0 | $20 | $50 | Typically small per-square charges |
Variables that most affect roofing felt price
Roof pitch and area are key numeric drivers. Higher pitches require more time and safety measures, which increases labor hours. Another major variable is the material type: asphalt-saturated felt is cheaper per square foot, while synthetic underlayment provides higher performance but costs more upfront. Regional differences in labor rates can swing total cost by 10–40% between markets. Expect per-square underlayment costs to range from $25 to $80 depending on these factors.
Concrete pricing for different material choices on underlayment
Synthetic underlayment costs roughly 20–60% more than asphalt felt. If you have a 1,800 sq ft roof and choose synthetic, the underlayment portion may run $900-$1,440 for materials alone, versus $450-$900 for asphalt felt. Labor scales with roof area and complexity, typically adding another $300-$700. For small, flat roofs, costs trend toward the lower end; for steep or multi-level roofs, the upper range is more common.
Regional differences in underlayment pricing across the U.S.
Prices vary by region due to labor availability and material shipping costs. In the Northeast and Pacific Northwest, expect higher labor rates, while the Midwest and Southeast can be more affordable. A typical per-square installed cost ranges from $35 to $75 in higher-cost regions and $25 to $60 in lower-cost regions. Material choice narrows the spread within each region.
How to estimate per-square costs for your roof
Calculate by roof squares (100 sq ft) and multiply by the chosen underlayment rate. For asphalt felt at about $25-$50 per roof square for materials plus $25-$45 per square for labor, a 20-square roof would range roughly from $1,000 to $2,150 total for underlayment and installation. For synthetic underlayment, estimate $40-$80 per square for materials plus $25-$60 per square for labor, landing in the $1,700-$4,200 range depending on pitch and accessibility.
Concrete cost drivers: size, system type, and installation scope
Size, system type, and scope dictate overall cost. Size determines how many rolls are needed; system type (asphalt felt vs synthetic) changes material costs; scope includes prep work like old underlayment removal, drip edge, and overlaps. For a simple reroof with standard asphalt felt, plan for the low to mid range on a per-square basis; for a full synthetic underlayment with extra overlaps and nail-guards on a complex roof, expect higher prices.
Ways to reduce roofing felt price without reducing protection
Control scope and timing to save money. Bundle felt installation with other roof work to secure better labor rates, opt for standard asphalt felt instead of premium synthetics where acceptable, trim waste by precise layout, and schedule during off-peak seasons to avoid premium scheduling. Consider reusing existing underlayment where feasible, and compare quotes from at least two local contractors to balance price and reliability.
Three real-world scenarios with price ranges
Scenario A: 1,500 sq ft roof, asphalt felt, standard pitch. Materials $25 per square, labor $40 per square, total about $1,000–$2,200 including delivery. Scenario B: 2,000 sq ft roof, synthetic underlayment, moderate pitch.
Total for Scenario B: $2,800–$5,000 depending on labor and overlaps. Scenario C: 3,000 sq ft roof, high pitch, asphalt felt.
Expect materials plus labor to land around $3,000–$6,500, with extra due to awkward access or added trim.
Three regional price snapshots by market intensity
Coastal market (high demand): underlayment materials $40–$90 per roll; labor $60–$120 per hour; total per square typically $35–$75.
Midwest market (balanced demand): materials $25–$60 per roll; labor $40–$90 per hour; total per square $25–$60.
Southwest market (dry climate, large homes): materials $30–$70 per roll; labor $50–$100 per hour; total per square $30–$70.
