How To Build A Waterproof Roof Deck
This is used to provide a durable long lasting waterproof membrane on top of your existing deck.
How to build a waterproof roof deck. Step 2 cover the deck. That s unfortunate because building a reliable long lasting waterproof deck over living space is relatively straightforward when the best practices and materials are used. Once the primer dries apply the geo textile on all edges and seams on the plywood deck roof or balcony. Materials required fiberglass panels gutter and downspout pressure treated 2x4s roofing screws.
Make sure it s free of all dirt and debris. Epdm is available in widths up to about 50 so you can generally lay down a continuous sheet without any seams. Cover furniture or items on your flat roof deck that are not meant to be waterproofed with the drop cloth. For example recently a simple 3 800 deck repair turned into a 120 000 project thanks to dry rot damage to the framing shear walls and decks.
Raintight panels made of aluminum lock together to create waterproof joints. Step 1 clean the deck. The roof deck should be properly flashed with a. Clean off the dust then apply the primer to the entire surface with a large paint brush.
The roof deck surface should sloped away from the house a minimum 1 8 inch per foot so the water will drain and not pond the finished walking surface of the roof deck surface should be below the level of the interior floor by at least 1 1 2. Use the liquid rubber deck coating under the textile to stick it to all seams. The costs can be astronomical.