With baited breath I'm not telling anyone what my new venture is going to be........yet it slipped because I'm excited to start. Long story short is that I sold two jobs from telling one person and I don't even have any equipment.

So my question is this;

First, I sold a roof job.....about 1800 sq.ft. How much mix will I use for the job?
Not % of SH but actual gallons I will spray on the roof.

Second, I sold a single wide trailer: complete wash job (probably 13'x50' older unit). It has a metal roof and metal siding (probably aluminum).
So how many gallons should I expect to use?

I just don't want to mix 10 gallons and not be enough but I also don't want to mix way too much.

Also, any advice for either job would be appreciated. Neither has rain gutters so I do plan to rinse. Should I still use my sprayer but only with fresh water and 1 "good rinse", "mild rinse" or "heavy rinse"?

Thanks All!

Just about time for the modules....:}