Sounds like another GTG may be in order. Hot weather may not be fun unless your pool is open! Im always game!
Looked like English cherry. They’re always having a jolly old time. Yes the heat has arrived. You on any roofs?
I do very little roofing anymore. Siding repair today then back at the 3 season porch I built for some finishing details. Have the back half of a three car garage roof to wash tomorrow. Lots of moss. Spray it on and forget it. Sounds easy enough for a hot day. Lady also asked me to trim the dead limbs off her big white birch. Problem is some are over two stories up and over the garage. The things I have to do to make a buck.
LOL!!! Honestly the tree should come down. Planted too close to the garage 50+ years ago. Has a slight lean toward the garage. Drops dead twigs on it all the time and the gutter is jammed with leaves in the Fall. I've mentioned to her it'd be a good idea to take it down. It'd be a cherry picker job for me. Ive taken down a smaller spruce and trimmed some of her trees in the last few years. She has a bigger doqwood that's on its last legs too.
Product called moss away. Hooks onto the end of a garden hose and it automatically dilutes it. Spray on and forget it. You can buy refills for it. Customer of mine had me do his roof as he had bought it. I've used 2-3 other products for algae streaks. Sold at Ace hardware as I didn't see it at big box stores. Be sure to get the one for roofs if you try it. Im sure there is industrial strength products for pros but I'm not really keen on washing roofs.
Does the dead moss release once dead? I've used Oxyclean with reasonable results, but the dead moss remains and needs to be removed manually.
Not 100% sure. The product is called "moss out" not moss away. I was just reading the fine print directions and they recommend doing it late day in the hot weather so I'll be doing other work first. My friends house where I have my BL stored had a lot of moss on his roof. He had a company come in and spray it and it did seem to release rather quick. His insurance company force him to do it. Not a roof I'd wanna do anyhow as its a cape.
Another product I just tried is mixed 50/50 with water. Use a pump type sprayer to wet the roof. Wait 15 minutes then hose off. If worked great on dark algae and even the few lichens seemed to easily wash off with the hose on jet mode. Sold at Lowe's and a gallon was 10-12$. I forget the name though.
Years back when I owned a house I had bad green algae and mildew stains on the vinyl. I was going to pressure wash. My neighbor across the street was a painting contractor who told me to use ordinary bleach in a garden sprayer. Spray wait, rinse. It worked great and I've washed some houses like that since. Not sure how it would work on the roof though (never tried it) and if it would have any long term effects on the asphalt. The times I've done it since I've used outdoor bleach which I've been told is nothing more than diluted bleach.
Remember my sidewalk? Those huge slabs of stone. They come right out of my backyard. Found them buried under the ground when I was digging the foundation drain line. One giant boulder that split itself into 6-8” thick slabs for whatever reason. Stained by however millions of years of clay. Ex suggested bleaching them. Dumped a gallon of bleach on em and instant Clay-B-Gone. I was impressed Clay isnt moss but,,,,,,
Zinc, copper and even lead are great inhibitors of moss and algae growth. Just look at a roof surface below the runoff pattern below cupolas, chimney flashed with such. Shingle mfrs have algae resistant shingles which have zinc granules dispersed on the exposed surface of the shingles. They started marketing them around here 20 years ago. The norm for down South when the problem is very prevalent. Those zinc strips installed at the peak are a joke. I've installed a few and IMO they work very poorly. They "warp" and distort and look ugly coming from someone who looks at roofs all the time!
