
Originally Posted by
dr. d
we had the same problem, before, in our bespoke house (no short cuts, dilutions, etc.). when it started leaking, we did everything... tar... "waterproof paint" at libitum... etc. etc.
nothing worked.
finally, out of desperation, we tacked on, flat GI sheets, starting near-bottom upwards, with the necessary overlap. hayun! wala na tulo.
at that time, there were no such things as be-spoke sheets with folds, etc, etc. unlike today.