SKU: 22409266611

Owens Corning WeatherLock 36-in x 66.7-ft (200-sq ft) Polypropylene Roof Underlayment

Sale price$71.08 Regular price$78.98
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Owens Corning WeatherLock 36-in x 66.7-ft (200-sq ft) Polypropylene Roof UnderlaymentWeatherLock Polypropylene Roof Underlayment, 36 in x 66. 7 ft Self adhering WeatherLock roof underlayment creates a watertight secondary barrier beneath shingles. The granulated, slip resistant surface and excellent tear resistance help ease installation while protecting vulnerable areas against ice dams and wind driven rain. Key Features: Self Adhesive Seal: Adheres to the deck and seals around nails to help prevent water migration. Slip Resistant

WeatherLock Polypropylene Roof Underlayment, 36-in x 66.7-ft

Self-adhering WeatherLock roof underlayment creates a watertight secondary barrier beneath shingles. The granulated, slip-resistant surface and excellent tear resistance help ease installation while protecting vulnerable areas against ice dams and wind-driven rain.


Key Features:

  • Self-Adhesive Seal: Adheres to the deck and seals around nails to help prevent water migration.
  • Slip-Resistant Surface: Granulated top provides traction for safer, easier installs.
  • Tear-Resistant Build: Resists cracking and breaking during installation for durability.
  • Enhanced Waterproofing: Modified asphalt construction forms a dependable watertight barrier; selvedge edge improves seal between courses.
  • Sized for Coverage: 36-in x 66.7-ft roll covers 200 sq ft for efficient roof projects.

Specifications Table:

Specification Details
Series Name WeatherLock
Coverage Area 200 sq ft
Roll Length 66.7 ft
Roll Width 36 in
Material Polypropylene
Application Method Self-adhesive, roll on
Surface Granulated, slip-resistant
Tear Resistance Excellent; resists cracking and breaking during installation
Water Protection Ice and water barrier; seals around nails
Selvedge Edge Improves seal between courses
For Use with Asphalt Shingles Yes
For Use with Flat Roofing No
For Use with Metal Roofing No
For Use with Wood Shakes Yes
Warranty None
CA Prop 65 Warning Yes
UNSPSC 30151500

Frequently Asked Questions (FAQ):

Q: What roofing materials is this underlayment compatible with?
A: Designed for use with asphalt shingles and suitable for wood shakes and slate roof assemblies as part of a roofing system.


Q: Is it self-adhering or mechanically fastened?
A: It is a self-adhesive underlayment that bonds to the roof deck and seals around nails.


Q: How much area does one roll cover?
A: Each 36-in x 66.7-ft roll covers 200 square feet.


Q: Does it help with ice dams and wind-driven rain?
A: Yes, it acts as an ice and water barrier to protect vulnerable areas such as eaves, valleys, chimneys, vents, and skylights.


Q: Is the surface safe to walk on during install?
A: Yes, the granulated surface is designed to be slip-resistant for better traction.


A Sleek, Watertight Foundation for Your Roof

WeatherLock lays down a crisp, graphite-hued canvas that disappears beneath shingles yet elevates the entire assembly with performance. Its granulated texture is a subtle, tactile detail that grips underfoot and signals strength. Wrap eaves, valleys, and chimneys to craft a flawless, watertight edge before the first shingle is set. Consider it the quiet luxury layer—essential protection that lets your roof look beautiful and live beautifully.


Secure your roof with WeatherLock today and add a reliable, watertight barrier before the shingles go on.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22409266611

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Hatice Karaca
Draper, US
★★★★★ 5
Dermatologist recommended it!
Size: 1.3 Ounce (Pack of 1)
This is my 11th order of this product. I originally started using it a few years ago when my dermatologist recommended it during a period of hormonal acne. I’ve been using it ever since. I have very sensitive skin that usually reacts to almost everything, either with redness or breakouts, but I can use this cream comfortably without any issues. It is very gentle, deeply hydrating, and has become a permanent part of my skincare routine. It is definitely worth the price. Even a small amount provides excellent hydration and it lasts a long time. I also love that it has a natural ingredients and is fragrance-free.
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Reviewed in the United States on April 14, 2026
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Jill
Alexandria, US
★★★★★ 5
Game changer.
Size: 1.3 Ounce (Pack of 1)
I moved out to Arizona back in 2020 and shortly after that, I became a reptile. My skin would become flaky and peel and I tried several different types of facial creams and lotions with no luck. I went to a dermatologist who recommended CeraVe, and it did help my skin to an extent. It took care of the flakiness, but I would still see the dryness, especially when I looked in the mirror up close. I recently was on Google doing a search and came across this brand. I thought I’d give them a try and though I was skeptical, my skin has not looked this good in years. My skin feels smooth, hydrated and NO greasiness. I highly recommend this product.
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Reviewed in the United States on September 1, 2025
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Kelly
Alexandria, US
★★★★★ 5
Wonderfully effective and slightly bougie
Size: 1.3 Ounce (Pack of 1)
I have dry not so sensitive skin. I love the way this smells and feels on my tired parched face.
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Reviewed in the United States on October 25, 2025
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Amazon Customer
Grantham, US
★★★★★ 5
Cleared up my flaky skin problem, helps keeps my facial skin soft year round
Size: 1.3 Ounce (Pack of 1)
I bought this full-size tube of Avene Hydrance Optimale Rich Hydrating Cream after falling in love with a small sample tube that came in a subscription box. At the time I received the sample, I was battling an unusual case of dry flaky skin that was embarrassing. Within a few days of regular use, my skin looked like new. Soft and clear. The tiny sample lasted a long time, so I didn't hesitate to buy the full-size tube even at this price. I use this every morning and night after cleansing my face. My skin stays soft, even with the dry winter skin and drying indoor heat. My makeup glides on smoothly. This is my go-to moisturizer year round now. Another reviewer mentioned being concerned her product may be counterfeit. I only buy products like this when it says Sold by Amazon and not a third party so I make sure I get authentic, fresh products every time.
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Rochester, NY
Louisville, US
★★★★★ 4
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This is a good product that was recommended by my Dermatologist. As written in a previous review, I prefer the LIGHT product. This is very good but too heavy for my face.
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