Let's talk mold

I'm allergenic to white fuzzy Indiana grass mold.
Green and black molds are common on vinyl siding. Have seen brown and yellow, not common
Black mold on shingles and sidewalks.
Green mold on wood siding.
Sometimes green mold will show up on Aluminum siding on trailers and metal on my implement trailer.
Green or black mold doesn't appear on my brick, block, Aluminum siding on two of my houses or pole barn's metal siding.
Black mold will appear on drywall when conditions are right. Ex, behind cabinets in laundry. Behind wallpaper on exterior wall. Anyplace clothes, cardboard boxes or other things are against exterior walls just to mention a few places

I even seen everything in my basement growing white fuzzy grass mold. Rain gutter drain pipe got blocked, put water from my roof into the basement and I hadn't gone downstairs in a while. House smelled like a moldy old fart lived there. Everything in my basement got pitched and used a special chemical to kill the mold. Won't let that happen again. Dehumidifiers couldn't handle all the rain water.

I know how to remove all forms of mold and the cause, humidity.

My question, Why does it appear on some materials and not others? Wouldn't it be nice to apply a chemical one time to vinyl siding, wood, shingles, even grass and no more mold? That would be a perfect world.
geo

Suggest that to your nearest University and see if they can get a gubberment grant for a few million dollars lol...but your right would be nice.

WHY???

case guy,
That's my question, Why is there mold on some building materials and not on others? The bigger question is aluminum siding on a house don't have mold. I put it on in 1979. A mobile home made in the 70-80' with aluminum siding is moldy. Not my MH, just drove by one. SO WHY?

Not to mention I react to mold. I hate cleaning vinyl siding. geo

"Mold" vs. "lichen"? Inquiring minds want to know! Or NOT?

Which grows best on "blue" gas cans or lithium batteries?

Bob, I haven't seen anything growing on my blue cans of lithium batteries.

Yesterday I was mowing around a rental house I put Reynolds aluminum siding on in 1979. I was admiring how nice it looked and the fact that I haven't done anything to it, ever.

The rest of my rentals I put vinyl on and I have to clean every year, green mold. Had I knows that aluminum would have been maintenance free, I would have spent the extra money and not worked so hard over the years cleaning the vinyl.

From 1991-96 I doubled the size of my house up north. Everything got replaced, electrical, windows, doors, plumbing, new bathrooms, kitchen, walls moved total remodel, insulation upgrade, extra ventilation, power vents, eve vents, roof vents, doubled the size, 25000 brick and a 2 car garage. I spent twice the money on the remodel than I paid for the house in 1977. I did 99% of the work too.

I sealed the brick when I finished. Never done a thing to the brick. No trim to paint, Boss wanted a touch , 8 square, of vinyl added to the back of house for accent only. Wish I hadn't listened to her. I have to clean it every year.
geo

Our old 1930's farm house, wet basement, leaky sump pump, vinyl - no mold.
Our new house, dry as can b e, new vinyl - covered in green mold.

A rolling stone gathers no mold. Don't know if that's true for Kieth Richards?