Mildew on vinyl siding

[Richard Martin]

Originally Posted by b-nasty

Spray & Forget is also a 'harsh' chemical: benzalkonium chloride, but fine when used as directed. It's also much more expensive than good old bleach.

It also has a staying power that bleach does not have. Once bleach is washed off, it's gone. The mildew will restart the process. Spray and Forget protection lasts for at least one year. I'm still watching for mildew to reappear.

[mmyk72]

Home Armor FG511 E-Z House Wash, 64 oz - Pack of 2 https://www.amazon.com/dp/B077X4SQ6D..._WvGMDbHCV1XN8

I used this product 4+ yrs ago and moss hasn't came back yet. This link is for reference only. Dont buy from AMZ. Mine was on sale for like 5 bucks locally. comes w a sprayer hose that I kept so next time I can just put outdoor bleach into the same bottle. I know OP say there's no hose but just want to share a $5 solution that may work for people who has a less than major mildew problem.

[DaveinMtAiry]

Originally Posted by foodyum

Can you power wash it?
If that side of the house is in the shade, the mold is going to return. I’d invest the $75 dollars and purchase the power washer. Part of yearly maintenance.

This