moss on roof

[Slickcraft]

After being suggested by Geneva Point I gave the product a try. We have some quarter size spots on lichen starting on the roof and many small spots of moss. About 10 days ago I sprayed 200 square feet of the roof and now all the lichen and moss in that area is dead.
I had picked-up a half gallon locally for $30, rather expensive even given that you dilute it 5:1 but it works. Today I ordered a full gallon at Amazon.com, $28 plus shipping.
http://www.amazon.com/Wet-Forget-105...8080959&sr=1-1
Once all the lichen and moss is dead, I'll install zinc strips at the peak.
http://www.zincshield.com/home.html

[Grady223]

Originally Posted by Slickcraft

After being suggested by Geneva Point I gave the product a try. We have some quarter size spots on lichen starting on the roof and many small spots of moss. About 10 days ago I sprayed 200 square feet of the roof and now all the lichen and moss in that area is dead.
I had picked-up a half gallon locally for $30, rather expensive even given that you dilute it 5:1 but it works. Today I ordered a full gallon at Amazon.com, $28 plus shipping.
http://www.amazon.com/Wet-Forget-105...8080959&sr=1-1
Once all the lichen and moss is dead, I'll install zinc strips at the peak.
http://www.zincshield.com/home.html

Sounds like a plan. You could spay every 2 years with Liquid Zinc and not bother with the strips.

[dayvsea]

Slide some roll copper flashing under highest course above the area after you eradicate.. Water seeps down with bad news for the lichen...

[RLW]

Originally Posted by dayvsea

Slide some roll copper flashing under highest course above the area after you eradicate.. Water seeps down with bad news for the lichen...

My company has tried this on about a dozen garages as we didn't want to experiment on large homes and found over 7 years that this DOES NOT WORK and a waste of good money as copper is very expensive nowadays. Clearing the area for more sun lite also doesn't work as the moss just keeps coming back. Some shingle manufactures supposedly have come up with some type of a new ingredient that stops this condition.

[Slickcraft]

Originally Posted by RLW

My company has tried this on about a dozen garages as we didn't want to experiment on large homes and found over 7 years that this DOES NOT WORK and a waste of good money as copper is very expensive nowadays. Clearing the area for more sun lite also doesn't work as the moss just keeps coming back. Some shingle manufactures supposedly have come up with some type of a new ingredient that stops this condition.

I believe that the ingredient is either copper or zinc granules depending on the manufacturer.

[SIKSUKR]

Not sure why clearing the area of trees would not work unless there is almost no sun due to geographical exposure. All houses that had decent sun exposure would have moss if that were the case. I suspect that if were talking about removing existing moss and clearing trees and the problem comes back, I would think that the roof has little sun exposure along with remaining agae/moss inbedded that starts the process all over. The moss needs to be absolutely dead in my opinion by using something along the lines of bleach.

[Slickcraft]

Originally Posted by SIKSUKR

Not sure why clearing the area of trees would not work unless there is almost no sun due to geographical exposure.All houses that had decent sun exposure would have moss if that were the case.I suspect that if were talking about removing existing moss and clearing trees and the problem comes back,I would think that the roof has little sun exposure along with remaining agae/moss inbedded that starts the process all over.The moss needs to be absolutely dead in my opinion by using something along the lines of bleach.

As I reported earlier, the "Wet and Forget" killed both the lichen and the moss. Now after 3 months all of the dead lichen has washed off the roof and the remaining bits of moss in the groves are all dead. The product does not contain bleach but it sure killed to moss.
In our case clearing the area of trees is not a great option.

[RLW]

Slickcraft, great looking location and can understand for not wanting to remove trees. Just keep doing what your doing as long as it works for you.

[Belmont Resident]

I have a few houses that I use a pressure washer on each spring to remove built up moss.
I hate doing this because each time I do this even though I turn down the pressure I still remove some material from the shingles. I will be ordering this and recommending it to the customer this spring.
Also it isn’t always an option to remove trees around ones camp or house. Personally I don’t understand why more camp owners do not go to metal roofs. I’ve never encountered a metal roof with a moss problem. Yet!

[GsChinadoll]

After reading these posts a few months ago, we went out and bought Wet It and Forget It. My husband sprayed it on the shed, the vinyl lattice work under the deck, on the roof of the porch and on the vinyl railings on our porches and all the green and mildew is gone from all areas sprayed! Thank you for the tip! It really works!

[Mirror Lake's BB]

Both of these products work the same. In fact, they were in court a few years ago. One was suing the other over patent issues.

We had almost a carpet of moss on our garage roof. Sprayed it last fall. The moss was killed but not all of it fell off during the winter & spring. We just used a hose and sprayed off the remaining clumps this past summer.

You do have to be careful to protect shrubs around your house foundation. Just follow the directions and wet the shrubs before and after applying to the roof.

You can get it (Wet & Forget) at Costco in the spring as it is considered a 'seasonal' item. True Value, Ace, & Do it Best also carries one or the other product. It's a lot easier to find these days.

[CateP]

Would Wet and Forget be an appropriate product to remove mildew from vinyl siding?

[Rattlesnake Gal]

Originally Posted by CateP

Would Wet and Forget be an appropriate product to remove mildew from vinyl siding?

After reading GsChinadoll's post, I would say yes, it is appropriate.

Originally Posted by GsChinadoll

After reading these posts a few months ago, we went out and bought Wet It and Forget It. My husband sprayed it on the shed, the vinyl lattice work under the deck, on the roof of the porch and on the vinyl railings on our porches and all the green and mildew is gone from all areas sprayed! Thank you for the tip! It really works!

From Wet and Forget website:

Can Wet & Forget be used on any outside surface?

Absolutely, you can use Wet & Forget on any outside surface, including: Concrete Driveways and Walkways, Patios, Pool Surrounds, Asphalt Driveways, Fiberglass, Brick, Painted Textured Surfaces, Tombstones, Natural Stone, Ceramic Pots, Wood Decks, Composite Decks, Astro Turf, Tennis Courts, Canvas Awnings, Greenhouses, Boats, RV's, Gutters, Siding (Vinyl, Aluminum and Wood and Stucco) and Roofs (Asphalt and Fiberglass, Steel, Clay, Shake and Tile). Click here to read about Wet & Forget’s gentle cleaning process.

I think we need to pick up some of this Wet and Forget! Removing our trees is not really an option and it sounds like it might work on the algae on the walkways. Just wondering, is there an odor to it? If there is, how long did it stick around? I am super sensitive to chemicals and scents and have to be super conservative.

Geneva Point, thanks for the information on Wet and Forget. It sounds very promising!!!

[Slickcraft]

Originally Posted by Rattlesnake Gal

Just wondering, is there an odor to it? If there is, how long did it stick around? I am super sensitive to chemicals and scents and have to be super conservative.

I don't recall an odor when using it. I have about a quart of the concentrate left in the gallon jug, just opened the cap and asked Ms Slickcraft about the odor. Her judgement: smells and looks like Windex, a mild odor right near the concentrate.

It did get rid of the moss and lichen on the walk way.

[GTO]

Originally Posted by Rattlesnake Gal

After reading GsChinadoll's post, I would say yes, it is appropriate.



From Wet and Forget website:

Can Wet & Forget be used on any outside surface?

Absolutely, you can use Wet & Forget on any outside surface, including: Concrete Driveways and Walkways, Patios, Pool Surrounds, Asphalt Driveways, Fiberglass, Brick, Painted Textured Surfaces, Tombstones, Natural Stone, Ceramic Pots, Wood Decks, Composite Decks, Astro Turf, Tennis Courts, Canvas Awnings, Greenhouses, Boats, RV's, Gutters, Siding (Vinyl, Aluminum and Wood and Stucco) and Roofs (Asphalt and Fiberglass, Steel, Clay, Shake and Tile). Click here to read about Wet & Forget’s gentle cleaning process.

I think we need to pick up some of this Wet and Forget! Removing our trees is not really an option and it sounds like it might work on the algae on the walkways. Just wondering, is there an odor to it? If there is, how long did it stick around? I am super sensitive to chemicals and scents and have to be super conservative.

Geneva Point, thanks for the information on Wet and Forget. It sounds very promising!!!

First of all, let me reply to this thread because I am actually the one that started it. I bought Wet & Forget at Heaths shortly after I got the advice here. Sprayed it on the entire side of the roof with a garden pump sprayer. It wasn't pretty with me at the top of the ladder trying to get along the peak of my A-frame. Anyways, after a week or so you could see the green moss turning brown and then after a few weeks, noticed it coming down into the gutters. I should have put a second spray on in August as suggested but never got around to it. All in all, it did a great job.
RG, there is no odor but follow the precautions on the bottle.

[Rolie]

Is it pet friendly if used on decks or walks?

[Rattlesnake Gal]

Originally Posted by Rolie

Is it pet friendly if used on decks or walks?

From the Wet & Forget FAQ page:

Will Wet & Forget affect my pets?

Not under normal circumstances. However, after application, keep your pets off the surface until it is dry to ensure they don't ingest any of the Wet & Forget. If they accidentally walk in the treated area while wet, rinse your pet's paws with fresh water as a precaution. Wet & Forget is safe for pets if it rains after the dry time.

Is Wet and Forget safe to use around my pets?

We’ve gotten numerous inquiries from some of you who are ready to apply Wet & Forget but want to know if it’s at all harmful to your pets. Here’s your answer!

You only need to keep pets off the surface during the time it takes Wet & Forget to dry, which is between 4 and 5 hours. Once the drying time has elapsed, both people and pets are free to walk on the surface that was sprayed with Wet & Forget. It is also safe for people and pets to be on the treated surface after subsequent rainfalls.

[uglyduck]

How do I get rid of heavy moss on my lawn?