SKU: 22409266611

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

$71.08 $78.98
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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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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4.2 ★★★★★
Based on 6 reviews
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Product Reviews
J
J. Lam
Birmingham, US
★★★★★ 4
most can fit saros 10, but not all
Color: Saros 10R/Qrevo CurvX Accessories Kit, Color: Saros 10R/Qrevo CurvX Accessories Kit
I should have done a little more research with these. I purchased this for a Saros 10, i thought the Saros 10 and 10R was basically the same besides the filters. I was wrong. Although the brushes are the same size, they didnt fit. They lacked a special metal piece on one side, and the 10R has a different shape on the other, cant even jerry rig it to fit. The filters didnt fit my Saros 10, but that didnt cause the dropped rating, but they quality of it looks very good, and seems well made. The side brushes are good and they fit my Saros 10, replaced them and didnt have a problem. The bags also fit and they are very good. The mopping brushes did not fit, but it was very well made and definitely wasnt just a cheap set. The brush and screw driver were just to add additional number counts and basically useless.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026
K
Keith McElroy
Lexington, US
★★★★★ 5
Everything you need for your robot maintenance
Color: Saros 10r-20/Qrevo Curvx Accessories, Color: Saros 10r-20/Qrevo Curvx Accessories
Automatic floor robots are a great convenience and, at this point, I can't picture our house without one. Being able to turn them on at night and wake up to vacuum and mopped floors is pretty amazing. The problem is that you eventually have to do maintenance on them to keep them running. I guess it's not that much to ask of you since they do go for a long time with only water refills and waste water dumps. It's hard to find kits that are comprehensive enough to cover all the needs, so when I saw this one, I had to pick it up. The kit contains multiples of every consumable on the Roborock (ours is named Mrs. Nesbit). It also comes with a screwdriver and a blade/brush to clean dirt and hair. The small spinning brush is easy to replace, and the only one you need the screwdriver for. The mopping pad functional on the Roborock is one of my favorite features, so having multiple replacements makes this kit very attractive. They simple peel off of the Velcro and lay back the same. The split rollers take a minute to figure out, but you don't need to loosen the screws - they pull right off the U shaped plastic pieces they are attached to, but keep track of which goes with which color because each plastic piece only goes back on its correct side. The easiest to replace is the filter on the dust bin in the robot since it just pops out and the new one fits in. The lasts step is to replace the dust bag in the base itself, which is very simple. Overall, the quality and fit of all the pieces included in this kit were great. I didn't run across anything that was off or I had to force on. While my pads and brushes weren't as bad as my other vacuum (named The Beast), the vacuum had been warning me that their life was coming to an end and I needed to swap them out. Now I have multiple replacements for the future and my Roborock is good to go for many months. I will be picking this kit up again when I run out and wouldn't hesitate to recommend it at this price point.
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Reviewed in the United States on May 10, 2026
N
Nancy
Boise, US
★★★★★ 4
Good Budget Replacement Set, but Mop Pads Differ from Original
Color: Saros 10r-20/Qrevo Curvx Accessories
These replacement accessories fit my Roborock Qrevo S5 without any issues. I run my robot daily because I have a dog, so I go through mop pads pretty quickly and have already used this set for a couple of cleaning runs around the house on vinyl floors. The bags seal properly, and I did not notice any loss of suction or performance with the filters compared to the original parts. The biggest difference was the mop pads themselves. They feel noticeably different from the OEM Roborock ones and seem a bit lower in quality. Even so, they still got the job done for normal daily cleaning and handled pet hair and dirt well. Since the original pads also wear out for me after multiple washes, this set still feels like a practical and more affordable alternative overall.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
S
Super Duper
Phoenix, US
★★★★★ 3
Not as good as the oem accessories
Color: Saros 10r-20/Qrevo Curvx Accessories, Color: Saros 10r-20/Qrevo Curvx Accessories
I have a roborock saros 10r and all of these accessories seem to be compatible and work with my robovac however the quality of them isn’t nearly the same level. The mop pads material are much coarser and less fine than the original. The side brushed bristles weren’t nearly as tightly bound together. The roller brush isn’t as well made. The cleaning performance I think is similar but i suspect they will not last as long as the oem accessories which are just much better made. Over it’s a mix on value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
E
Ed
Louisville, US
★★★★★ 5
All the parts needed to maintain your Roborock robot, with a great fit and finish.
Color: Saros 10r-20/Qrevo Curvx Accessories, Color: Saros 10r-20/Qrevo Curvx Accessories
This is a great consumable parts replacement package for many Roborock robots. I utilized it for my Saros 10R. The parts all fit great and honestly look and feel just like the OEM parts that came with the robot. Over time, I have purchased new consumable parts for my Saros 10R from various sources, but I think that I will be using this kit in the future. The kit comes with everything one needs to maintain Roborock robots, as outlined in its description. The main brushes are of good quality and fit well. I have found that the main brushes and the filter fit are the hardest things for third-party vendors to duplicate, and these do that well. What I like most is the mop heads. They are of very good quality and may be better than the OEM mop heads. Everything in this kit fits well and mimics the manufacturer's parts closely in both quality and fit. Compared to the cost of Roborock OEM parts, this is a home run.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026

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