SKU: 63855105514

GAF MasterFlow Zinc Moss & Mildew Preventer, 2.67 in x 50 ft Roll (NMM50)

Sale price$36.21 Regular price$40.23
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Description

GAF MasterFlow Zinc Moss & Mildew Preventer, 2.67 in x 50 ft Roll (NMM50)Zinc Roof Moss & Mildew Preventer Roll Install this zinc strip near the roof ridge to help inhibit moss and mildew growth on shingles. Durable zinc material delivers long lasting protection in a convenient 2. 67 in x 50 ft roll for easy application on residential roofs. Key Features: Long Lasting Protection: Zinc composition helps prevent moss and mildew growth on roofs Easy Installation: Installs near the ridge; roll format allows quick cutting and

Zinc Roof Moss & Mildew Preventer Roll

Install this zinc strip near the roof ridge to help inhibit moss and mildew growth on shingles. Durable zinc material delivers long-lasting protection in a convenient 2.67 in x 50 ft roll for easy application on residential roofs.


Key Features:

  • Long-Lasting Protection: Zinc composition helps prevent moss and mildew growth on roofs
  • Easy Installation: Installs near the ridge; roll format allows quick cutting and placement
  • Durable Material: Mill finish zinc resists weathering for extended service life
  • Ideal Coverage: 2.67 in width by 50 ft length fits along ridgelines and problem areas
  • Trusted Brand: Part of the MasterFlow line from GAF for roofing accessories

Specifications Table:

Specification Details
Manufacturer Part Number NMM50
Brand GAF
Product Line MasterFlow
Material Zinc
Finish Mill Finish
Dimensions 2.67 in x 50 ft
Unit of Measure Roll (RL)
Item Weight 4.5 lb
Applicable Standards EPA Approved
Intended Use Install near roof ridge to help prevent moss and mildew growth

Frequently Asked Questions (FAQ):

Q: How is this product installed?
A: Cut the zinc strip to length and fasten it near the roof ridge under the cap shingles, allowing rainwater to wash zinc ions down the roof surface.


Q: What roof types is it compatible with?
A: Designed for use on typical asphalt shingle roofs; verify suitability with your roofer for other materials.


Q: How long does the protection last?
A: Zinc strips provide multi-year protection as rain releases zinc ions over time; inspect periodically and replace when significantly corroded or depleted.


Q: What are the roll dimensions?
A: Each roll measures approximately 2.67 inches wide by 50 feet long.


Q: Is it EPA approved?
A: Yes, the product is listed as EPA approved.


A Sleek Zinc Line That Keeps Your Roof Pristine

I love how a discreet ribbon of zinc can so elegantly preserve a home’s silhouette, keeping the roof crisp and clean. The mill-finish sheen feels industrial-chic, disappearing visually while working tirelessly. Run it along the ridge beneath cap shingles and pair with charcoal asphalt for a refined, low-maintenance statement. It’s a quiet luxury—performance that protects the architecture you love.


Safeguard your roof’s look and longevity—add this zinc moss preventer roll to your project 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: 63855105514

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4.4 ★★★★★
Based on 1725 reviews
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K
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Kendall
Waukegan, US
★★★★★ 3
Good, but not life-changing
Color: Blue, Size: Queen(2 Pack)-20'*30'
These pillows are decent but not amazing. I like that they’re adjustable and come with extra fill, so you can make them softer or firmer depending on how you sleep. The cooling side feels nice at first, but it doesn’t stay super cool all night. They’re comfortable enough, but not a huge upgrade from regular pillows. Good, just not life-changing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
D
Verified Purchase
David James
Carnegie, US
★★★★★ 5
Qutool double sided cooling pillows
Color: Blue, Size: King(2 Pack)-20'*36', Color: Blue, Size: King(2 Pack)-20'*36'
After letting the pillows sit for 12 hrs they puffed up and feel great Thus far satisfied with our purchase
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
M
Verified Purchase
Mopardodgegirl
Phoenix, US
★★★★★ 5
It works! Quality pillow.
Size: Standard (1 Count), Color: Original White (Cooling)
This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
J
Verified Purchase
jin
New York, US
★★★★★ 5
Most comfortable pillow I’ve ever slept on
Size: Queen (1 Count), Color: Crescent White(cooling)
This is the most comfortable pillow I have ever slept on. It doesn't mash down like other pillows. Cradles my neck perfectly plus it’s cool. I broke my neck a couple of years ago and this pillow feels very good and comfortable. Definitely recommend to everyone. Ive used it since May and it’s retained its shape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
A
Verified Purchase
AreTrue
Belleville, US
★★★★★ 4
Smell
Size: Queen (2 Count), Color: Original White (Cooling)
The fact that there are not more comments on the smell of these pillows has me worried about some of yall. Listen, I LOVE the weight, and the firmness, it’s perfect for that. However, these pillows are RANK. They have a very strong mildew-ish smell that lingers. I took the outer cover off and washed it and let the pillow air out for a few days, the smell is still very strong when you press your face against it, which one does because it is in fact designed for that purpose. It smells so bad. It’s nauseating. I can smell it through two pillowcases and blanket that I threw on top of them hoping an extra layer would trap the smell. I’ll bake them in the Texas sun tomorrow and hope that helps, because otherwise these are the perfect pillows for someone who wants to feel like they are hugging a torso but can’t stand the sound/feel of someone else breathing. I don’t know…4 stars, if the smell goes away I’ll come back. Update: many many days later. Either they don’t really smell anymore or I got use to it. They’ve held their firmness and shape well. I like them.
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Reviewed in the United States on March 9, 2026

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