SKU: 26997746759

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

Sale price$54.05 Regular price$60.06
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Owens Corning WeatherLock Mat 36-in x 66.7-ft (200-sq ft) Polypropylene Roof UnderlaymentWeatherLock Mat Polypropylene Roof Underlayment, 200 sq ft Lightweight, self sealing roof underlayment designed to add a waterproof layer beneath shingles. The WeatherLock Mat roll covers 200 sq ft and features SureStep technology for improved traction and easier installation. Key Features: Waterproof Protection: Acts as a secondary barrier under shingles to help prevent leaks from wind driven rain and ice dams SureStep Traction: Mat faced design

WeatherLock Mat Polypropylene Roof Underlayment, 200-sq ft

Lightweight, self-sealing roof underlayment designed to add a waterproof layer beneath shingles. The WeatherLock Mat roll covers 200 sq ft and features SureStep technology for improved traction and easier installation.


Key Features:

  • Waterproof Protection: Acts as a secondary barrier under shingles to help prevent leaks from wind-driven rain and ice dams
  • SureStep Traction: Mat-faced design provides consistent surface grip to reduce slipping, sticking, and scuffing
  • Lightweight Handling: Up to 40% lighter than standard mat-faced products for easier loading, carrying, and installation
  • Versatile Application: Suitable for full deck coverage and vulnerable areas like eaves, rakes, valleys, vents, chimneys, and skylights
  • Self-Adhesive Convenience: Adheres to deck to create a watertight seal around nails and speeds installation

Specifications Table:

Specification Details
Series Name WeatherLock Mat
Coverage Area 200 sq ft
Length 66.7 ft
Width 36 in
Application Method Roll on
Material Polypropylene
For Use with Asphalt Shingles Yes
For Use with Flat Roofing Yes
For Use with Metal Roofing No
For Use with Wood Shakes No (web spec), marketing images show engineered for wood shake
CA Residents: Prop 65 Warning(s) Yes
Warranty None
UNSPSC 30151500
Feature Self-adhesive, self-sealing waterproofing barrier
Weight (lbs.) 61.5

Frequently Asked Questions (FAQ):

Q: What roof types is this underlayment compatible with?
A: It’s engineered for asphalt shingles, wood shakes, and quarry slate roof assemblies; not recommended for metal roofing.


Q: How much area does one roll cover?
A: Each roll measures 36 inches by 66.7 feet and covers 200 square feet.


Q: Is the surface safe to walk on during installation?
A: Yes. The SureStep mat-faced design provides excellent traction to help reduce slipping and scuffing.


Q: Does it require special tools to install?
A: No special tools are required; it is a roll-on, self-adhesive underlayment designed for straightforward application.


Q: Is there a manufacturer warranty?
A: No warranty is listed for this product.


Sleek, Secure Roofing Foundation

WeatherLock Mat brings a refined, matte texture that quietly elevates the craft beneath your shingles. Its standout SureStep surface offers confident footing as you sculpt clean roof lines. Use it to trace elegant edges around eaves and valleys for a tailored finish. This is the discreet luxury that ensures beauty endures—protection with poise.


Secure your roof with WeatherLock Mat—lightweight, grippy, and built to keep water out—order your 200-sq ft roll today.

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: 26997746759

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4.1 ★★★★★
Based on 29 reviews
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P
Verified Purchase
Pappy
Natrona Heights, US
★★★★★ 5
Very durable and fun to play with
Set name: Stuffed Animal Dog Toy Set (5 Pcs)
I've had them a few weeks now and my dog that destroys other chew toys hasn't made a dent. My smaller dog made 1 his favorite and sleeps with it. Overall, I think it's a good deal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
A
Verified Purchase
Aimee Rohn
Lexington, US
★★★★★ 5
Small
A little small but my dog loved them. Does not hold up to a shredder though. Perfect for typical toy lovers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026
B
Verified Purchase
Barbara Redcay
Carnegie, US
★★★★★ 5
Well made, sturdy toys
Color: 3 Pack Donkey Goat Dog
So cute! Sturdy too, great for tugs of war.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
J
Verified Purchase
Jordan
Bozeman, US
★★★★★ 5
None of the stuffing pulled out
I have 3 dogs. 1 is very gentle w/ stuffed toys. 1 is new to us and very anxious and kept stealing things like water bottles to gnaw on. And 1 destroys every stuffed toy we have ever brought into the house. We bought these for the anxious one. She was recently adopted and very people shy and afraid of the world around her. She doesn't know how to play with people and she's terrified if you try to throw a ball or if you squeak a squeaker, but we also needed something durable enough for her chewing that would be safe for her and could also withstand the toy destroyer possibly getting hold of it. They've been playing with these for a few months now and the most damage is that some of the rope necks are a bit frayed and a lot of the fuzz on the outside is gone, but none of them have been torn open. And the squeakers are in there in a way that it's hard to make them squeak if not doing so intentionally. The 1 dog can have plush toys again, the 1 dog can gnaw and chew to reduce her anxiety and the 3rd can chew and attack it without me having to clean up stuffing all the time
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 6, 2022
C
Verified Purchase
Christane Huddleston
Cuba, US
★★★★★ 4
Very durable
Color: 3 Pack Donkey Giraffe Dog
For some reason I thought they would be a little bigger but I have to say they are very durable. My Saint Bernard has not shredded them to pieces yet. Normally the toys last a day or two but he still has them after 3 weeks. 👍
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026

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