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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4.2 ★★★★★
Based on 723 reviews
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C
Verified Purchase
Chris Young
Houston, US
★★★★★ 3
Not for hot sleepers
Color: White, Size: King (Pack of 2)
They’re comfortable and keep their shape, but they are not cooling pillows. 10 minutes after laying your head on it. You can feel the heat radiating back . I wake up every night with my head soaked with sweat.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
K
Verified Purchase
Kenny V
Draper, US
★★★★★ 5
Good set
Color: White, Size: King (Pack of 2)
Soft and fluffy! I like the ability to add or remove filling via the zippers. All pillows should have this!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
D
Verified Purchase
DR
Bozeman, US
★★★★★ 5
The best pillow I've ever had!
Size: King (U.S. Standard), Number of Items: 2
I have tried a LOT of pillows over the years. I'm allergic to feathers so I need something non-allergenic. I am a back and side sleeper, and all of the pillows I've tried have gone flat after just a few weeks. Well I've had these for a couple of months now, and they show no sign of flatness whatsoever. A few punches or a fluff cycle in my dryer each week plumps them right up. They are just the right kind of firmness -- enough give so that I'm not kinking my neck, but not too much give so that my head ends up on the mattress by morning. I just cannot say enough good things about these pillows. I'm so excited that I finally found one that is perfect for me. As others have said, they arrive vacuum packed. They look a bit weird, and it will make you wonder how they will ever fluff up from how flat they are when they arrive. But look at it as an opportunity to take out your frustrations lol. Whack them on a wall, punch the bejeebers out of them, it will make you feel good and it will inflate them right up. Or throw them in the dryer like I did and in 15 minutes you will have a perfectly fluffy pillow. All in all, I highly recommend these. The price point is so reasonable, and they seem to be well made. Five stars all around.
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Reviewed in the United States on January 19, 2025
G
Verified Purchase
Gary
Draper, US
★★★★★ 5
Updated: actually very good pillows for the price
Size: King (U.S. Standard), Number of Items: 2
Wow! It is amazing at how compact these arrive in their package... it actually was a bit of work to get them out of the packaging it was so tight. Once out, they immediately began to "size up" and within about 15 minutes had reached maximum size. They are comfortable pillows, but lack the firmness that I wanted. On a scale of 1-5, I'd rate them 3 at the most, possible a 2 if 5 is maximum firmness. Updated: After about a month or so of having these, I have to admit my initial impressions were flat out wrong... these are fantastic... comfortable and more firm than I initially thought... probably 4-4.5 out of 5 on the firmness scale now. Maybe they just take a while to decompress? Anyway, would now definitely recommend!
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Reviewed in the United States on April 25, 2025
E
Verified Purchase
Erin K. Ellison
Fort Morgan, US
★★★★★ 4
Not firm. But nice and fluffy
Size: King (U.S. Standard), Number of Items: 2
Very fluffy. Not firm.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2025

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