I was doing a Google on tile decks…and found this Blog on a homeowners building their house and their tile deck leak issues.
The first set of pics show the house being framed/flashed. Problems are already apparent, such as the floor of the deck being almost the same height as the floor of the house…then tile is going on. The result will be tile higher than the floor, water trapped in thresholds…click here to see the start of the job
Here is an actual statement by the owner on the cause of their deck problems…
“The 3rd wettest January on record helped to underscore the ongoing problems we had with water leaking into the great room. The roof over this area is actually the roof deck. The roof deck is surrounded by a stucco parapet and the theory for the cause of our water problems is that when the tile was grouted, the weep screed in the J-metal at the lower edge of the stucco got plugged. This caused water to back up into the stucco and seep through the wooden parapet structure (natural stucco is not waterproof). Any way, to fix it involved tearing out stucco and tile and re-flashing, re-sealing and putting everything back. 3/1/2005 – ”
“One wouldn’t think that in the desert, leaking water would be a big problem–and most of the time it isn’t. On those infrequent occasions, though, it can really be a mess. Our major leaking problems come from two areas. The first, and most serious, is water leaking from the roof deck. Current theory is that water is not exiting the stucco on the parapet through its normal path out of the bottom of J-metal that defines the lower limits of the stucco. This area has been blocked by tile grout. The other leaking is coming from the door thresholds. These were originally installed below the level of the exterior tile. Not a good idea. They were replaced with a higher version, but the adjoining deck tile was not replaced. This left a gap, and again, more water.”
See the horror show pics of water leaking in everywhere. Click here
See the horror show pics of the house being torn apart to remove wet insulation, drywall etc. Click here
See the horror show pics of the deck being torn apart to fix the stucco and deck. Click here
Moral of the Story-Do it right once or pay the consequences…