Proper Tile Balcony Floor Flashing

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.

Proper tile balcony floor flashing.

Usually but not always one tile in this pattern is twice as big as the other. Choose from stone products such as slate or traditional porcelain in a variety of colors and finishes. 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. Additionally many manufacturers of setting materials also make roof deck drainage systems.

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. With a 1 4 inch mortar joint the size of the increments for the layout ended up an even 12 inches and 6 inches. 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.

This keeps water from wicking along the bottom of the ledger and getting behind the siding. Wood sloped blocking sloped blocking membrane flashing wall membrane flashing sheathing paper corner membrane flashing p t. Install z flashing behind the bottom of the ledger and over the siding below. 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.

Sooo the sub hot mopped mortared and tiled. Framing wall sheathing sheathing paper p t. In this case the large tile was 11 3 4 inches square and the small tile was 5 3 4 inches square. Gap between the end of the ledger and the ends of siding and fill it with high quality exterior caulk to keep water from leaking behind the ends of the ledger.

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. Where the step flashing terminates along a sidewall is a common trouble spot for moisture problems. Balcony edge flashing concrete topping. 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.

Section r507 decks r703 8 wall coverings flashing code. Balcony s should be waterproofed like we do for shower floors. Flashing must be installed like shingles flashing relies on physics to do its job properly. The best solution is a preformed or custom bent kick out flashing to divert the water away from the siding.