APOC AP-26 #30 Tuff-Felt Premium Asphalt-Saturated Roof Underlayment 36 in x 72 ft, 216 sq ft

APOC® #30 Tuff-Felt™ is a professional-grade asphalt-saturated roof underlayment engineered to add a second, breathable shield beneath shingles, shakes, tile or metal roofing. Each 36 in × 72 ft roll covers 216 ft² and is manufactured with heavy-weight wood-pulp reinforcement that dramatically boosts tensile strength while resisting tears during installation. Innovative Tru-Breathe™ Technology lets water vapor escape while blocking liquid water, helping the deck stay dry and extending the life of the entire roof system.

Because the felt is pre-saturated to 150 % by weight with premium asphalt and weighs in at 26 lb / 100 ft², it lays flat, stays dimensional-stable and has earned the “Tested Best” rating from leading roofing contractors. A breaking strength of 40 lbf/in (machine direction) and 20 lbf/in (cross direction) means it stands up to foot-traffic and high winds alike. Faster, wrinkle-free installation is aided by printed alignment guidelines and a forgiving, flexible mat that can be cold-nailed or stapled.

• Roll size: 36 in W × 72 ft L (216 ft²) coverage
• #30 premium asphalt-saturated felt — 26 lb / 100 ft² net mass
• Tru-Breathe™ breathable membrane – vents moisture, blocks water
• Heavy-weight reinforcement — 40/20 lbf/in breaking strength
• 150 % asphalt saturation for long-term weatherproofing
• Passes Liquid Water Transmission Test for leak resistance
• Ideal under shingles, shakes, tiles, metal and even vertical siding
• Optional registration for extended warranty beyond the standard 1 year

Breathable protection that prevents deck rot

Unlike many synthetic underlayments that trap humidity, the micro-porous Tru-Breathe™ mat allows trapped vapor to vent away. That keeps OSB or plywood decks drier and helps finish roofing last longer in hot, humid or cold climates.

Strength you can feel underfoot

The exclusive heavy-weight fiber matrix and high asphalt pickup give Tuff-Felt™ impressive puncture and tear resistance—critical when installers are moving stacks of shingles across the deck or when storms hit before final roofing is on.

Fast, contractor-friendly installation

Printed overlap lines speed horizontal runs; only two nail rows are needed after the starter course, so crews can dry-in a typical roof quickly. The felt hugs the deck without slippery film layers, improving job-site safety.

Certified for harsh conditions

Tuff-Felt™ meets NRCA nail-fastening recommendations, passes stringent water-penetration tests, and serves as a robust secondary weather barrier against wind-driven rain, snow and debris.

Dimensions

Roll: 36 in × 72 ft × ≈ .025 in thick

Weight

Approx. 46 lb per roll (26 lb / 100 ft² basis)