Underground parking
My granddaughter has rented an apartment with underground parking. Yesterday I noticed a stain on her roof that looks like the cement was leaking lime or whatever on her roof.
The internet tells me I can use vinegar to remove the stain but I wonder if there is anything that I can use to treat her roof to minimize any damage as I can't check her car on a daily basis.
I'm think of a special wax or some type of coating.
Any thoughts? Thanks Doug
Doug






