Wow, just looked at an exterior covered deck that has been leaking since the day it was built but not showing the damage it was slowly doing until a year ago.
flat roof with no pitch under rubber membrane.
water was already standing prior to mud & tile.
mud filled with water and has caused cracking and efflorescence.
metal brackets for railing screwed through rubber roofing membrane.
2" gap at edge filled with grout, probably where water has made it in.
you can see stalactites and rust on the edge dripping into gutter
water dripping from kitchen light and vent, had to put bowls down to catch water.
*have been doing this for 2 years.
water dripping down inside of siding and into inside of door to damage bamboo floor
also water down inside of side to inside of door to rot out door.
