Killing and removing roof moss isn't really all that difficult. It is however time consuming. It will also require you to get up on your roof. What follows on this page are the steps you'll need to take in order to kill and remove the moss that's on your roof.

I am fortunate enough to have a friend who owns a roofing business. Although his business doesn't deal with roof moss removal, he was able to tell me what had to be done to get rid of it. He explained that in order to completely eliminate the roof moss, it would first have to be killed and then it would have to be removed. Failure to remove the moss after killing it would mean that you'd just have a bunch of dead moss on your roof which, if you plan on preventing re-growth, will hinder the desired effect of the zinc strips you're going to install.

OK Let's Get Started

 First, in order to kill the moss, you’ll need:

There are many products on the market that claim to kill moss. The moss killer that was recommended to me was a product called Moss Out. As with most of the other products that kill roof moss, the container simply attaches to the end of a garden hose and automatically mixes with the water as you spray. Once on the roof, simply spray the entire roof with the roof moss killer and water mixture, and leave it alone for a few days. The product claims that you could start to see results in as little a few hours. I did not experience that, but within a few days, all the moss had turned brown and died. The whole process from set-up to clean-up takes less then a day to complete.

 

That Was Easy!…What's Next?

 Now it's time to remove the dead moss. It’s important to remember during this part of the project to take great care in not removing the grit on the shingles…so no heavy scrapping. Start with a stiff bristle push broom, and lightly go over the roof dislodging as much moss as possible. Use a paint scrapper to knock off what remains. Again, it's very important to remember to just knock it off…don’t scrape it off. This entire process also took less than a day to complete.

Believe it or not, it really is that easy!! So, with just a ladder, a garden hose, a good roof moss killer, a stiff bristle broom, a paint scrapper, and a little less than two days, you'll have a roof free from moss. It is now time to move on to step 2: installing zinc strips to make sure the moss doesn't start growing again.

installed zinc strips Now that you have a nice clean, moss free roof, you'll want to do a little roof moss prevention. Some people recommend spraying moss killer on your roof once a year. It's important to remember that that will only kill any existing moss on your roof. It will not prevent it from growing, and unless you get up on the roof and clean it off, you’ll eventually end up with a roof full of dead moss. If you've already taken the time to remove the dead moss from your roof, there's no reason not to take a little more time and prevent it from returning.

           How Can I Prevent Moss From Growing?

 Zinc strips are the key to roof moss prevention. The overwhelming school of thought is that zinc strips will not kill any existing moss (although recently that is debatable), but they will prevent any new moss from growing. The theory is that, when installed properly, each time it rains, the zinc strips release a zinc coating on the roof which prevents moss from growing. Zinc strips can be installed using roofing nails (not recommended), or by using a heavy duty clear flexible sealant. If you don't like the idea of putting a bunch of nails in your roof and having to put a sealant over each nail to guard against leaking, try using a flexible sealant to install the zinc strips. This method of installation will take a little longer than using nails, but it will be worth the extra time to accomplish the same thing without putting any unnecessary holes in your roof.

 

How Are Zinc Strips Installed?

 Zinc strips should be installed on either side of the peak of the roof. Also, if your roof has skylight windows, a chimney, pvc vents etc., make sure you put a zinc strip below whatever it is so you’ll get a full coating of zinc on the roof when it rains. First, roll out your zinc strip to the length you're going to need. Use a pair of tin snips or something similar to cut the zinc strip. Then simply take a paint scraper or something similar, and slide it about 1/4" under the top row of shingles. You're not trying to lift the shingle but rather just make a little room to slide the zinc strip about 1/4" under it. Once the zinc strip is in place, using a caulking gun, force a small bead of sealant along the edge of the shingle. Force the sealant under the shingle if possible as long as you're not lifting the shingle to do it. Roof moss prevention really is as simple as installing these strips.

 

UPDATE: Recently, it has come to my attention that you can now purchase ready made, easy to install zinc strips. I have not personally tried them, but based on what I've been able to find out about them, I'd give them a try. They look easier to install and should save time.

 

 

How Long Will They Last?

 There are many opinions as to how long the zinc strips are effective. These opinions range from a couple of years, up to 15 years with most estimates tending to be on the high side of that range. One thing is for sure: As of this posting, my roof is still moss free. So far, it was definitely worth the time and effort that was put into this project. The zinc strips appear to be doing what they are supposed to be doing.

 If you have a problem with moss on your roof, why not give this a try for yourself. For a small investment and a little bit of your time, you’ll save yourself a significant amount of money, now and in the future. And because you did it yourself, you'll know your roof moss prevention project was done right.

 

 

In order to start your roof moss removal project, you’ll need a good dependable ladder. If you need to purchase one, you should consider buying an aluminum extension ladder for a number of reasons:

 

  • The roof eaves of many homes are at different heights
  •  Most aluminum extension ladders are light weight making it easier to move from roof to roof.
  •  The right ladder allows you to safely extend it to the right height AND make sure it’s not at too steep of an incline.
  • Because extension ladders can be set at different heights, they can be used for many other projects around the home that require you to get to out of reach places.

 

What Do I Need To Know?

 

When purchasing an aluminum extension ladder, there are a few things to keep in mind. For your moss removal project, or any other time you might need to get on your roof, you want the ladder to be able to extend 3 to 4 rungs above the eave. This will allow for safe easy on, easy off when transitioning from the ladder to the roof and vice versa. Make sure that the ladder has a good set of adjustable feet with hard, ridged rubber bottoms to allow for good anchoring. Also, before making your purchase, take a look around. Is there any other out of reach places that you might need to get to in the future and if so, how high up are you going to need to get? The right ladder for you should always get you up to where you need to be without having to reach or extend yourself while on the ladder.

 

Which Ladder Should I Buy?  

 

For your roof moss removal project, you’re going to first have to bring a hose and a good moss killer up on the roof with you, and later, your zinc strips and the supplies needed to install them. Having the right extension ladder will help make getting your materials up to the roof and down from the roof much easier and much safer. To make sure you get the best ladder for your needs, there are a few things you should factor into your decision:

 

  1. The sections of an extension ladder should overlap enough to retain the strength of the ladder.
    1. For a ladder up to 36ft in length, the required overlap is 3ft
    2. For a ladder over 36ft up to 48ft in length, the required overlap is 4ft
    3. For a ladder over 48ft up to 60ft in length, the required overlap is 5ft

            i.e. The maximum usable lenght for a 36ft ladder is 33ft.

  1. When being used to access an upper landing surface such as a roof, your ladder should extend 3 to 4 rungs or at least 3ft above the landing surface.
  2. Technically, the best angle for you to set your extension ladder at is about 75 degrees above horizontal. This means that the base should be set out one-fourth of the ladder's height to its top support point. For example, if a ladder is to be supported at a point 24 feet off the ground, its base should be set 6 feet from the wall (24ft divided by 4ft = 6ft).
  3. When ladders are set up at a steeper angle than 75 degrees above horizontal they are more likely to tip backward in use.
  4. When ladders are set up at an angle less than 75 degrees above horizontal they are more likely to slide out from the bottom.
  5. The distance from the foot of a ladder to the wall should never be more than one-half the height to the support point, an angle of about 63 degrees above horizontal.

 

Purchasing a good quality aluminum extension ladder for your home, will offer the owner the versatility of being able to get to any number of out of reach places in and around the home safely.  

 

 

Whether you live in an apartment, condominium, or own a home, it’s essential to have a good ladder around. Anything from changing light bulbs in high places or in stairwells, to painting or repairing ceilings, to installing ceiling fans, or having to get up in the attic is going to require the use of a ladder. And that’s just inside the home. Outside the home, anything from cleaning gutters, hanging Christmas lights, pruning tree limbs and tall bushes, the need to get up on the roof to remove moss or make repairs, etc. are also going to require the use of a ladder.

 

But the problem is that for some of these jobs you’ll need an extension ladder, and for others, a step ladder. And sometimes you’ll need the use of a step ladder on a surface or in an area that isn’t flat. That leaves you with two choices:

  1. You could purchase an extension ladder and a step ladder
  2. You could look into the many options that telescoping ladders offer

Option number one still doesn’t address what you’re going to do if you need to use a step ladder on a surface or in an area that isn’t flat like a stairwell. However, you will find that option number two will address all three problems.

 

What Is A Telescoping Ladder?

 

Telescoping ladders are the most versatile ladders on the market today. These multi-function ladders can convert from an extension ladder to a step ladder in seconds. And when being used as a step ladder, the legs can be adjusted to different heights to maintain the ladders stability when being used in areas that aren’t flat such as on stairs. They can also be converted into two scaffold bases that can come in handy when painting areas that are out of reach. And you’ll be able to convert to any one of these options that fit your needs in seconds.

 

How Do I Know What To Buy?

 

The leading telescoping ladders on the market today are made by Werner. The Werner MT Series Telescoping Multiladder might just be the only ladder you’ll ever need. The MT series comes in four models: the MT-13, MT-17, MT-22, and the MT-26, which allows you to choose the size ladder that’s right for your specific needs. When set up as a stepladder, the MT series is capable of supporting 300 lbs per side. That includes person and materials.

 

What Makes Them Special?

 

Not only are these telescoping ladders versatile, they’re made to last. From the durability of the double riveted steps, to the extra wide flared bottom that provides firm support, to the comfortable and safe climbing that the smooth curved side rails provide, to the heavy duty slip resistant non-marring feet, the Werner MT Series telescoping multi-ladders will allow you tackle any number of jobs around the house with the use of just one ladder.

 

 

In order to kill any moss that is growing on your roof, you’re going to need a good moss killer, and a rubber garden hose that is long enough to get up on your roof. Most home owners already own a garden hose, and if yours is long enough to reach up on your roof, you could already be ahead of the game. There are still some things you should know just to make sure.

 

What If I need A New Hose?

 

If you don’t already own one, or yours isn’t long enough to reach on top of the roof, there are a few things to remember when purchasing one:

  • Size, length, and water pressure will determine how many gallons of water a hose will carry.
  • The inside diameter of the hose will determine how efficient it will be.
  • A good rubber garden hose will come reinforced with tire cord fiber and other additives which give it good resistance to weathering and/or cracking.
  • The couplings should be “full flow”. This simply means that the inside of the coupling is expanded to maintain the inside diameter of the hose for better water flow.

 

 Aren’t All Garden Hoses The Same?

 

As stated earlier, a hose’s efficiency is determined by its inside diameter. A lesser quality hose will usually come with an inside diameter of 1/2” and will deliver about 9 gallons of water per minute. A good quality rubber garden hose will come with a 5/8” inside diameter and will deliver about 17 gallons per minute. And at about 23 gallons per minute, a hose with an inside diameter of 3/4” delivers about 3 times as much water as a 1/2” hose. The larger the inside diameter of the hose, the less loss of pressure you will experience. Therefore, if your water pressure is low, the hose is going to be running uphill, or is exceptionally long, consider purchasing a hose with a larger inside diameter to minimize pressure loss inside the hose.

 

A good rubber garden hose will also be very flexible as opposed to some of the lesser quality hoses. Some of the lesser quality hoses also have a greater tendency to kink and/or spring leaks due to their thin walls.

 

Spending a few extra dollars on a good quality garden hose along with some minor cleaning of the couplings when it’s time to store it away will prevent you from having to replace a cheaper hose every few years.    

 

 

 

Zinc strips can be installed using roofing nails (not recomended). If you choose to do it this way, it is recommended that you put a good weather resistant silicone or roofing sealant over the head of each nail after you put it in.

There's Got To Be A Better Way

An alternative to nails is using a good clear flexible roofing sealant. Although this method might take a little longer, its well worth the effort and you won’t have to worry about putting holes in your roof. One of the better products on the market is made by the Sashco Company called Through the Roof! which is a clear flexible sealant.

What Makes Through the Roof! Special?

Among the many benefits that Through the Roof! offers are:

 

  • Excellent UV resistance
  • Sticks to wet surfaces
  • Water and mildew resistant
  • Won’t freeze
  • Limited Lifetime Warranty

 

Through the Roof! was used to install the zinc strips for the roof moss removal project that this site refers to. It has now been through 1 1/2 northeast fall seasons, 2 winters, and 1 1/2 springs, and there have been no issues at all with the zinc strips. Due to these results, this is the roofing sealant that is recommended for this job.

What Else Can I Use It For?

Other uses that the manufacturer recommends using this roofing sealant for are:

  • Galvanized metal and aluminum flashing
  • PVC and ABS vent pipe
  • Skylights
  • Gutters and downspouts
  • Ductwork and vents
  • Chimneys
  • Brick/block/mortar
  • Shingles and shakes
  • Flat roof tile

And That's Not All

Through the Roof! won't dry hard and crack, and it expands and contracts with temperature changes. It can be applied to wet surfaces and exposed to rain or snow immediately, and Through the Roof! won't turn brittle in the sun or cold.

 

There are many other products on the market that are made to do all the things that Through the Roof! claims to do. Because this was the roofing sealant that was selected for this project and because to date there have been no issues, it is suggested that if you decide to take on your roof moss removal project yourself, you install your zinc strips with Through the Roof! roofing sealant.