Proper Tile Balcony Floor Flashing

Section r507 decks r703 8 wall coverings flashing code.

Proper tile balcony floor flashing.

Sooo the sub hot mopped mortared and tiled. Flashing must be installed like shingles flashing relies on physics to do its job properly. Usually but not always one tile in this pattern is twice as big as the other. Balcony edge flashing concrete topping.

With a 1 4 inch mortar joint the size of the increments for the layout ended up an even 12 inches and 6 inches. Wood strapping metal parapet flashing stucco cladding exterior caulking a a b b. Install z flashing behind the bottom of the ledger and over the siding below. Framing wall sheathing sheathing paper p t.

Not only should the surface of the tile be sloped to the respective drains at the rate of 1 4 per foot but the surface of the underlying peel and stick membrane should be sloped to a drain weep system at the rate of 1 4 per foot. Tile rated for outdoor use serves as an ideal balcony floor covering. The deck never leaked but the thicker deck surface didn t allow for proper flashing at the interface to the house. The best solution is a preformed or custom bent kick out flashing to divert the water away from the siding.

This keeps water from wicking along the bottom of the ledger and getting behind the siding. Either a drain within the balcony or having it drain off the side of the balcony that has a drip edge flashing so it doesn t stain the side of the building. In areas where snow may build up add a wide band of peel and stick membrane over the step flashing but under the sheathing wrap as shown. The tcna handbook contains two details for decks f103 roof decks and f104 balcony decks.

The architect had specified a membrane under the tile but the contractor wasn t familiar with this type of construction this was 18 years ago. Often these proprietary systems are highly modified versions of the f103 system allowing precipitation to drain away from the tile. Wood sloped blocking sloped blocking membrane flashing wall membrane flashing sheathing paper corner membrane flashing p t. Where the step flashing terminates along a sidewall is a common trouble spot for moisture problems.

Balcony s should be waterproofed like we do for shower floors. Flashing must do its job and keep water out of the building cavity code section r317 protection of wood and wood based products against decay section r502 wood floor framing. Additionally many manufacturers of setting materials also make roof deck drainage systems. The tile floor has to be designed so water has a path to drain away either into a floor drain or off the edge of the balcony into a drain gutter or with some sort of drip edge flashing so the water doesn t drain over the surface of the exterior wall below it.