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Tarco 30# Asphalt Felt Roofing Underlayment Roll, 36 in. x 72 ft, 2 Squares, ASTM D226 Type II
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Tarco 30# Asphalt Felt Roofing Underlayment Roll, 36 in. x 72 ft, 2 Squares, ASTM D226 Type II
Tarco 30# Felt is an asphalt-saturated organic felt roofing underlayment meeting ASTM D226, Type II. Each roll measures 36 in. x 72 ft and covers 2 squares (200 sq ft) of roof deck. One roll per order, installed beneath shingles as a primary underlayment layer.
Key Features:
- ASTM D226 Type II: Meets ASTM D226, Type II for 30# organic felt underlayment.
- 2 squares per roll: Each 36 in. x 72 ft roll covers 2 squares (200 sq ft) of roof area.
- Standard 36 in. roll: 36 in. wide roll fits standard shingle course layout and fast laddering.
- Proven felt: Asphalt-saturated felt is the traditional, time-tested underlayment choice.
- Single roll unit: Sold per roll for easy job quantity planning.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Tarco |
| Sell unit | 1 roll, 36 in. x 72 ft (2 squares) |
| Product line | Tarco Non-Spec 30# Felt |
| Material | Asphalt-saturated organic felt |
| Standard met | ASTM D226, Type II |
| Dimensions | 72 ft x 36 in. |
| Coverage per unit | 2 squares (200 sq ft) per roll |
| Available sizes | 2 square roll, 36 in. width |
| Intended use | Residential roofing underlayment beneath shingles |
Coverage & How Much You Need:
One roll covers 2 squares (200 sq ft) of roof deck. Divide total roof square count by 2 for rolls needed, then add 10-15% for laps, hips, valleys and waste.
Fit and Compatibility:
Used under asphalt shingles and other steep-slope roof coverings as a code-recognized felt underlayment layer. Pair with proper drip edge and, where required by code, ice-and-water barrier at eaves and valleys (sold separately).
Frequently Asked Questions (FAQ):
Q: What is included?
A: One roll of Tarco 30# felt underlayment, 36 in. x 72 ft, covering 2 squares.
Q: How many rolls do I need?
A: Divide your roof's total squares by 2 and add 10-15% for laps, valleys and waste.
Q: What standard does it meet?
A: It meets ASTM D226, Type II, the specification for 30# asphalt-saturated felt.
Q: How is it installed?
A: Roll it horizontally up the deck with the specified side laps and end laps per code and shingle manufacturer instructions, fastening along the top edge of each course.
Q: Is this the same as synthetic underlayment?
A: No, it is traditional asphalt-saturated felt; synthetics are lighter and stronger but felt remains a widely accepted, code-listed option.
Q: How wide is the roll?
A: The roll is 36 in. wide and 72 ft long.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
30# felt is the right call when you want a heavier, more tear-resistant layer than 15# under shingles, especially on longer exposure windows. Ladder the deck bottom-up with 2-4 in. side laps and 4-6 in. end laps, and keep rolls dry until covered. In ice-belt climates, supplement eaves and valleys with an ice-and-water membrane rather than relying on felt alone.
Felt is slippery when wet or dusty, so wear slip-resistant footwear and keep the deck dry while installing underlayment.
Order Tarco 30# felt underlayment rolls for your next shingle roof and cover 2 squares per roll.
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