What's the tar-based sealant you are talking about? While I understand
the french drain is important and I am going to provide one I still
want to ensure that water won't sip through porous cinder block walls.
So I need to coat or cover it with some waterproofing coat. I know
there are specific waterproofing resin coats that are sprayed on the
walls and prevent water from sipping through. Different products
withstand different hydrostatic pressure. Unfortunately, all of these
products are expensive as they require certified specialist to apply. I
am looking for the best and affordable solution that I can apply
myself. It may not be as effective as specialized coatings but combined
with french drain and proper grading can provide maximum waterproofing
I can achieve by doing things myself.