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Tyvek

Tyvek Protec 120 Roof Underlayment 4' x 250' - 1 Roll

  • Based on 184 reviews
Condition: New
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$139.97 Why this price?
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Availability: In Stock.
Fulfilled by HomeImprovementSupply
Arrives Sep 12 – Sep 13
Order within 23 hours and 21 minutes
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Features

  • Class A fire rating per ASTM E108 30 year limited product replacement warranty
  • Up to 3 months protection ICC-ES AC188 code approval
  • Miami-Dade County Approved : 19-0109.07 10 square roll
  • 4 feet x 250 feet 9.76 millimeters thick

Description

The Dupont Tyvek Protec 120 Roof Underlayment is a synthetic underlayment equipped with industry-leading walk-ability and slip resistance. The slip resistance material makes working on the rooftop much safer. Tyvek Protec 120 can be used under asphalt shingle, cedar or metal roofing with a slope of 2:12 or higher. This roofing underlayment is easy to chalk, wrinkle-free, and adds extra protection against moisture and UV exposure.

Manufacturer: ‎Tyvek


Part Number: ‎40360


Item Weight: ‎24.6 pounds


Product Dimensions: ‎48.1 x 6.3 x 6.3 inches


Item model number: ‎40360


Item Package Quantity: ‎1


Date First Available: September 9, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 12 – Sep 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Consistency
Better than tar paper trust me easy install.
Reviewed in the United States on February 23, 2026 by Kindle Customer
    • Durable
Excellent and had exactly the correct coverage. Very durable
Reviewed in the United States on December 9, 2025 by kenneth mix
    • Good underlayment
Really good stuff. Worth the additional cost if you want superior protection. Easy to work with and has plenty of marks to guide with keeping the shingles straight.
Reviewed in the United States on November 26, 2025 by Mike T
    • Resilient material, withstands hard soled boots, traction perfect
I've always used tar infused paper up to using this product. This Tyvek 120 provides much less weight to handle on the roof, making going up the ladder and rolling out a breeze. The printed pattern leaves no guessing as to what nail pattern to use. Didn't slip once walking on the laid out product. Provided great traction between the sheathing and backside, between the top surface and footwear. Stayed cool to the touch in bright sunlight on a warm day, leaves no residue on clothes that comes in contact while installing. ... show more
Reviewed in the United States on July 15, 2024 by margaret
    • Not as advertised.
I only have to shingle part of my house so one roll should have been plenty, so when I came up short I measured every bit I had installed. THIS ROLL IS ONLY 120 FEET LONG! I gave it 3 stars because it seems like good stuff, but I feel cheated. I should have bought it at Home Depot. They apparently sent me the wrong size, not what I ordered. After checking, they gave me a rebate. This is good stuff, and I'd have given it 5 stars if I'd had enough for the job. ... show more
Reviewed in the United States on November 11, 2022 by Thomas B.
    • Easy install
So far, no problem. No leaks. The description is a bit misleading, stating it's 160' long. It's 250
Reviewed in the United States on November 30, 2025 by Bob
    • Great weather protection
Substantial product to weather protect under siding or roofing. Easy to install!
Reviewed in the United States on October 17, 2025 by Kbk
    • Peace of mind
Not being content with other products that stated they were not waterproof, I specifically sought out a roofing product that was. I came across not only this product that gives me peace of mind to have as an underlayment on my roof, but also this seller on Amazon that gave me the best price I could find, and that without having to travel nearly an hour away which is what I normally have to do for such things. Glad I got it. ... show more
Reviewed in the United States on July 23, 2023 by Tim

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