Copper Sulfate: DIY Roof Cleaner and Tree Root Killer
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- Опубликовано: 26 июн 2021
- Copper sulfate crystals (5 lb. bag): amzn.to/3xW32cY
If you have mold or mildew in your bathroom, moss or lichen on your roof, or tree roots growing in your sewer drains, use copper sulfate to solve all these problems.
Copper sulfate readily dissolves to a 20% saturation,. Mix 2 lbs (2-1/2 cups) of copper sulfate crystals to one gallon of water and let sit for an hour or so and you will have a 20% solution.
You will have crystals left over in the gallon jug, so just refill with more water and it will keep dissolving to 20%. You can continue doing this until there are no more crystals in the jug.
Copper sulfate is an organic substance that kills mold, mildew, moss, and lichen. It will also kill tree roots in your sewer pipes, but won't harm the tree because it only gets absorbed into the roots and no further.
Make it a regular routine to add it to your sewer pipes to keep them clear. In this video I explain how. I also show how to kill moss and lichen growing on your roof, which could shorten its useful life if not treated.
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You can put about 2 cups of the crystals in a gallon of water and what doesn't dissolve means the water can't absorb any more copper; you now have a solution that can be added at 8 ounces per gallon of water to your sprayer. Leave whatever doesn't dissolve and add more crystals to make some more solution, you'll end up with more solution than you could use in a lifetime. Add a squirt of dish soap to act as a Surfactant so that it will stick to the roof and mold and not run off. You can also add the dish soap to some water and Bleach and spray it on to kill everything first and then spray on the Copper to keep it off the roof, the copper should stay on the roof for some time.
Thanks! I haven't quite done that but I'll definitely give it a shot
Doesn't copper sulfate attack the rain gutters?
@@rbbartho1 Not if mixed right.
@@rbbartho1 Vinyl gutters
Will the copper sulfate corrode aluminum gutters?
Screw a bare copper wire across the roof near the top for a continuous low level of copper on the roof below the wire.
That's an interesting idea! You think it would be a sufficient "supply" of copper?
@@HomesteadDIY Years ago I was told that was the solution. I believe I have seen it done in pacific north west
@@HomesteadDIY old wooden ships was faced with copper sheets for the same purpose
@@Aaron_Barrettit was done in wooden ships to keep away barnacles
Not good enough.
That’s great to hear! I have invasive bamboo growing in my yard and definitely will try this on the roots. My copper sulphate is powder I guess it would work. Thanks for the great info!👍🏻
I would think it wouldn't matter if it was crystal or powder, though intuitively I'd think you would need less copper sulfate as a powder than crystal since it's more compact
That makes perfect sense. I use a few table spoon deleted in a jar of water and put it I’m my swimming pool in the spring after the water has cleared. My pool stays clear all summer. Thanks for your reply!
how did your hydrangeas do over the years?
Never understood why American builders use bitumen cloth as roofing material. Why not use tiles, they are guaranteed to have a useful life of greater than 100 years? Seems to be a false economy to me. We only use bitumen for temporary structures, sheds etc.
Used copper sulphate for my roof for decades, one treatment lasts 1 or 2 years as it absorbs into the tile surface and slowly leaches out.
Those who use slate roofs probably ask the same thing about tile :) But I think it is cost. Keeps initial upfront costs low, though total life costs are higher
@@HomesteadDIY Nothing better than being 2 or 3 stories up on a wet slate roof to make your knees knock!
Slate is aesthetically pleasing, most houses near me are slated because it was locally quarried, but need regular maintenance which isn’t ideal in the age of health and safety regulations. If you have to use a scaffold tower to replace a broken slate, a $25 job turns into a $1000 job.
4:22 I'm with you on taking the trees down but boy they will really work your roof over. I'm surprised to see how strong you mixed the solution. I have seen people use 4% and less. Have you ever experienced any degradation to your gutters? I've heard the galvanic properties of copper sulfate will chew them up.
Hmph! I actually didn’t even think about that. I cautioned on using it in sinks and tubs because of the potential harm to the plumbing but didn’t extend that to the gutters. Never even crossed my mind. Fortunately, so far there hasn’t been an issue but that doesn’t mean it’s not an issue in the works. Thanks for bringing it up!
If you have seamless aluminium pvc guttering, it will chew them up. I should know, unfortunately!
will this actually kill existing mildew or merely prevent more from forming. how does it "stay" on there
It should do both. It doesn't stay, per se, but may need to be reapplied over a week or to ensure exposure. For mildew, say in a shower (I haven't tried this, btw), I'd apply it, let it sit for an hour or so, then wash and rinse completely before using the shower. If it came back, I'd reapply again.
This will attack the aluminum gutters.
does this have an effect on your gutters?
I have plastic gutters, so I haven't seen any problem with them
If you have seamless aluminium pvc guttering, do NOT use copper sulphate! Within one year of spraying it on my roof, it turned my guttering into lace. There were hundreds of small holes burnt through the aluminium. I thoroughly hosed the roof (or so I thought) with clean water to remove any residue and I replaced the guttering. A few years later and the same problem is recurring - the guttering is once again turning to lace. Just saying!
Does it have any odor and will it leave a blue residue? Thanks
No odor at all and surprisingly no color stain. I was actually a little concerned the first time I did it, thinking I might have a weird colored roof for awhile. But there was nothing.
@@HomesteadDIY Thanks for the info! Was deciding between using copper sulfate and a strong saline solution. Not sure if the concentrated saltwater would be as effective. Will be trying this when I get the chance.
@@saljura4Salt is corrosive (iron nails) etc....
@@curlyhairdudeify should've clarified that I was going to be trying this on a brick walkway. The concentrated saltwater seemed to keep the weeds at bay for a little bit. Did not try the copper sulfate.
How often do you treat the sewer pipe? Thanks
It's suggested you can do it up to 3 times a year
@@HomesteadDIY can it kill whole tree from the roots? Thank you
@@Aaron_BarrettOnly if you dump the whole under the tree. It just kills the roots Inside pipes.
Goes good with coffee?
Tasty!
Very scary, corrosive CuSO4 on the same table as a cup of coffee.
But the gentleman does have a mellifluous voice, so hope he keeps it.
Use gloves lol...
Personal protection is so overrated:)
It literally is like salt. It's just copper.