Roof moss is actually very bad for your roof, and it’s for a whole host of reasons. In short, the majority of them amount to damage to your roof that could require the need for huge repair jobs, and very expensive ones at that. These can include a complete roof replacement in some cases. Thankfully, having regular inspections performed on your roof by expert roofers, combined with maintenance and preventative techniques, you can prevent the risks of having a costly repair job yourself. Not only that, you could also end up seeing the lengthening of the life expectancy of your roof as a very pleasant side effect. At the very least, making sure you remove moss from your roof will ensure you save a few bucks on your heating bills during the winter, and air conditioning bills during the summer. A roof that is not well-maintained is very well known for letting out hot and cool air, which means that you’ll be spending more on heating up or cooling down your home or building. And moss can very quickly cause your roof to go into a state of disrepair.



WHY YOU SHOULD ALWAYS REMOVE MOSS FROM YOUR ROOF
1 - Moss is heavy because it’s so full of moisture, and that means that a lot of moss is going to amount to a truckload of extra weight that your roof might not be equipped to deal with. This is especially the case if your roof is old or hasn’t been well-maintained.
2 - Extra moisture on your roof can lead to shingles curling up, peeling, and becoming loose. In turn, bad weather causes them to fly off or slide down. This can actually be much more dangerous than you’d first anticipated, even going as far as putting human life in danger. You’d be amazed by just how fast — and how far — a loose roof tile can travel in a bad storm.
3 - Moss is considered to be visually unappealing, and could even bring down the value of your home should you want to put in on the market. Because of the ease at which moss can move from one building to another, it is likely that your neighbors are going to be unhappy about the new, green addition to the area.

HOW EASY IS IT TO REMOVE MOSS FROM YOUR ROOF?
We’re not going to lie to you about this: getting up onto the structure to remove moss from your roof is going to be a fairly difficult task. If you don’t already have a telescopic ladder, you’ll need to hire one. You’ll also need to make sure that you have a secondary person on standby for safety reasons, and that you already know which areas of the roof are potentially weak enough to fall through. If you aren't sure of that, or your roof hasn't been maintained for some time, you may find that you’ll be in the attic in the blink of an eye ... even though you'd rather not be!

You will need to make sure that you're careful with whatever approach you take to physically remove the moss from your roof. A jet or power washer, for example, is ill-advised. This is because the power of the water can damage or break shingles that are already weak. The same can be said for anything that uses force, such as, a scraper. You’l have much better luck with a scrubbing brush, but, once again, you’ll need to be somewhat delicate with your actions. There are thing you can put in place once you have removed the moss, to prevent it from coming back. Things like copper or zinc strips are best left to be installed by the experts. There is a chance that you could damage the roof if you install them incorrectly, and they can still damage the roof even when installed correctly, if the area is already vulnerable or weak. Cleaning products or fluids that are high in acidity can also prevent the growth of both algae and moss, but these can cause corrosive activity that is detrimental to the roof, and can also change color of the shingles they come into contact with.

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