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TAMKO 30# Asphalt-Saturated Organic Felt Underlayment Roll, Black
Regular price $37.12Orders start at $399 — combine any items to reach the minimum. Learn more
TAMKO 30# Asphalt-Saturated Organic Felt Underlayment Roll, Black
TAMKO 30# Felt is an asphalt-saturated organic felt underlayment roll applied over the roof deck before shingles to help provide moisture protection. Rolls come in 18 in. x 72 ft or 36 in. x 72 ft sizes in black, including ASTM D4869 Type I, ASTM D226 and UL-listed variants. Accepted for use under TAMKO asphalt shingles.
Key Features:
- Asphalt saturated: Organic felt saturated in asphalt for proven moisture protection.
- Deck protection: Helps protect the roof deck prior to application of the shingles.
- Shingle compatible: Accepted for use over the deck prior to installing TAMKO asphalt shingles.
- Laying lines: Printed laying lines help crews keep courses straight.
- Tough construction: Manufactured to be tough for roofing jobsite handling.
- Multi-roofing use: Made for use under asphalt, tile and wood shake shingles.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | TAMKO |
| Sell unit | 1 roll |
| Product line | TAMKO organic felt underlayment |
| Available colors | Black |
| Available sizes | 18 in. x 72 ft (1 square); 36 in. x 72 ft (2 squares), with ASTM D4869 Type I, ASTM D226 and UL variants |
| Material | Asphalt-saturated organic felt |
| Finish / texture | Black felt |
| Dimensions | 18 in. x 72 ft or 36 in. x 72 ft rolls |
| Approvals | ASTM D4869 Type I and ASTM D226 on listed variants |
| Intended use | Roof deck underlayment beneath asphalt, tile and wood shake shingles |
Coverage & How Much You Need:
One 36 in. x 72 ft roll covers approximately 2 squares (200 sq ft) of roof deck; the 18 in. x 72 ft roll covers approximately 1 square (100 sq ft). Lap courses per the shingle manufacturer's instructions and local code when sizing the job.
Fit and Compatibility:
Accepted for use as an underlayment felt over the deck prior to installing TAMKO asphalt shingles, and suitable under asphalt, tile and wood shake shingles generally. Choose the ASTM D4869 Type I, ASTM D226 or UL variant as your project specification requires.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One roll of TAMKO 30# Felt in the selected size and specification variant.
Q: How much does one roll cover?
A: The 36 in. x 72 ft roll covers about 2 squares and the 18 in. x 72 ft roll about 1 square, before lapping.
Q: Which specification should I order?
A: Order the variant your project specifies: ASTM D4869 Type I, ASTM D226, UL, or the 18 in. x 72 ft roll.
Q: Where is it installed?
A: Over the roof deck, prior to installation of the shingles, to help provide moisture protection.
Q: Is it suitable under tile or shake?
A: TAMKO states its organic felt underlayments are made for asphalt, tile and wood shake shingles.
Q: Does it have laying lines?
A: Yes, laying lines are a listed feature to aid straight course installation.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
For steep-slope work, 30# felt gives a heavier, tougher layer than 15# and is a common choice under shake and tile. Use the laying lines to hold laps consistent and keep the felt flat before shingling. In high-wind or code-driven applications, verify whether your jurisdiction or the shingle specification calls for an ASTM D4869 or ASTM D226 grade felt.
Felt underlayment can be slippery, especially when damp or on slopes; wear appropriate footwear and use fall protection per jobsite requirements.
Order TAMKO 30# Felt rolls for dependable deck protection under your next shingle roof.
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