Rain water collection for drinking with questionable roof material

I have a metal roof with ( APOC 243 4.75-gallon White Elastomeric Reflective Roof Coating ) on it to keep the interior cool.

Is this stuff as bad as asphalt roofing for rainwater collection? From the researching ive been doing asphalt shingled roof is a big no-no and leeches chemicals that filters wont remove (such as a berkey). Ive read the datasheet on this product but it does not tell me as a laymen anything and the company wont respond, but does have a lot of scary chemical names in it.

Would you drink filtered water with a roof with such a coating or am I overthinking this? Ive still been using unfiltered roof water collected to do dishes / wash, etc but not drink.

Having a rough idea of your location would help.  Assuming you are in the USA,I would contact an organic Chemistry instructor at the nearest state university and ask this question.  I have had good results with 5his sort of approach.