Model # NMM50

Internet #100004640

Store SKU #430703

Master Flow 2.67 in. x 50 ft. Zinc Moss and Mildew Preventer Strip
0050206180006

Master Flow

2.67 in. x 50 ft. Zinc Moss and Mildew Preventer Strip

  • EPA Approved
  • Installs near roof ridge
  • For use with shingle, shake, or tile roofs
$3347 /each
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Frequently Bought Together

Installation Options

Product Overview

  • EPA Approved
  • Installs near roof ridge
  • For use with shingle, shake, or tile roofs
Use Master Flow Zinc Moss Preventer for long lasting protection against moss and fungus. Zinc Moss and Mildew Preventer installs easily near the roof ridge. It can be used with composite, shake or tile roofs and is EPA approved.
  • For use with composition (shingle), shake or tile roofing
  • For long-lasting protection against moss and fungus
  • Installs easily near the roof ridge
  • EPA approved

Product Overview

  • EPA Approved
  • Installs near roof ridge
  • For use with shingle, shake, or tile roofs
Model #: NMM50
Sku #: 430703
Internet #: 100004640

Use Master Flow Zinc Moss Preventer for long lasting protection against moss and fungus. Zinc Moss and Mildew Preventer installs easily near the roof ridge. It can be used with composite, shake or tile roofs and is EPA approved.

  • For use with composition (shingle), shake or tile roofing
  • For long-lasting protection against moss and fungus
  • Installs easily near the roof ridge
  • EPA approved

Specifications

Dimensions

Product Depth (in.)
600
Product Height (in.)
0.175
Product Size (oz.)
32
Product Width (in.)
2.67

Details

Cold applied
No
Color/Finish
Silver
Returnable
90-Day
Roofing Product Type
Protective
Sealant Type
Silicon

Warranty / Certifications

Manufacturer Warranty
Limited Warranty

Specifications

Dimensions

Product Depth (in.)
600
Product Height (in.)
0.175
Product Size (oz.)
32
Product Width (in.)
2.67

Details

Cold applied
No
Color/Finish
Silver
Returnable
90-Day
Roofing Product Type
Protective
Sealant Type
Silicon

Warranty / Certifications

Manufacturer Warranty
Limited Warranty

Questions & Answers

Hello Would like to know about zinc moss, is this product made entirely of zinc? Can I purchase ...

Hello Would like to know about zinc moss, is this product made entirely of zinc? Can I purchase this item at the san bernardino store on highland avenue, Thanks Ken
Asked by: Ken
Hi Ken, Yes this product is made entirely of zinc. I put it on my roof in Washington State last Summer and haven't had any moss return yet. To see the availability of this product at your store, you should be able to see online if they carry it. Otherwise, they should be able to ship it to your store for you to pick up there. I hope I answered your questions.
Answered by: Red
Date published: 2018-01-18

when installing the preventer strip dose it go under & over like weaving across shingles ? and sh...

when installing the preventer strip dose it go under & over like weaving across shingles ? and should i be using adhesive to hold in place ?
Asked by: terry
Install under the cap shingle on both sides of the ridge. Do not insert more than 1” under shingles. Please call Technical Services at 800-211-9612 with any additional questions.
Answered by: Master Flow
Date published: 2017-11-15

how do you install this

how do you install this
Asked by: gtw
Install this on the top of roof under the highest shingle/tile with most of it exposed on the North side or the side where you get the moss growing. I used some caulking and slipped about 3/4 inch under the top tiles.
Answered by: Rob
Date published: 2018-01-16

Can this be used on painted metal roofing to combat mold? If no, why not?

Asked by: Bill
Not recommended for painted metal surfaces to prevent reduce the risk of Galvanic corrosion . Only approved for shingle or shake roofing. Please call MasterFlow Technical Services at 800-211-9612, M-F 8A-5P EDT.
Answered by: Master Flow
Date published: 2016-06-08
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Customer Reviews

2.67 in. x 50 ft. Zinc Moss and Mildew Preventer Strip is rated 4.2 out of 5 by 17.
Rated 2 out of 5 by from No idea if it will work or not, but I ordered this "50ft" roll for our garage roof. The roof is 2... No idea if it will work or not, but I ordered this "50ft" roll for our garage roof. The roof is 23' 4" in length. When I roll out the 2nd side of the garage, I came up about 4' short. Not 50' as advertised!
Date published: 2017-10-01
Rated 5 out of 5 by from Very easy to install Installed under the ridge tiles on moss covered barn roof. It appears to have an immediate effect on eliminating the moss growth, but will have to have more rainy days to determine the total benefits. It's alot easier than trying to balance some 5 gals buckets of bleach on the roof ridge.
Date published: 2015-09-22
Rated 3 out of 5 by from This product was just purchased and installed. It is too early to assess the performance of this... This product was just purchased and installed. It is too early to assess the performance of this product to see if it works. I have, however, mentioned this product to several friends.
Date published: 2017-04-11
Rated 5 out of 5 by from This is my second purchase of the Zinc. It does work. I've got a couple of other places on the ... This is my second purchase of the Zinc. It does work. I've got a couple of other places on the roof that it needs to be installed.
Date published: 2017-05-02
Rated 3 out of 5 by from haven't had it long enough to see if it works, easy to install haven't had it long enough to see if it works, easy to install
Date published: 2017-04-07
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-04-21
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-04-21
Rated 4 out of 5 by from Easy to install! The zinc strip rolled out without problem and maintained its shape throughout installation without crimping. Looks good; much better than a roof with heavy moss and mildew build-up which I had before!
Date published: 2015-09-29
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