How To Waterproof Roof 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.

How to waterproof roof deck.

It also incorporates coolstep technology so you don t burn your feet and can also potentially lower your. Originally developed in the 1960s as a slip resistant flooring for small boats duradek was later introduced as a roofing material first in canada and then in the united states. Step 2 cover the deck. Applying gacodeck adds the waterproofing layer to a roof deck.

Any dirt and debris will keep your waterproofing sealer from sticking to the lumber. If your deck is already built you can cover the bottom of the joists with a system like timbertech s dryspace. Cut the tar paper into strips then attach the strips to the deck facing edge of each joist using a staple gun. A perimeter frame and graduated spacer nailers are fastened beneath the deck joists so that the plane of the ceiling slopes slightly at least 1 4 inch per foot away from the house toward the joist header.

Step 1 clean the deck. Just as it does in its intended application as a substrate for roofing the tar paper serves as a waterproof barrier for the top of the deck s joists. How vinyl waterproof decking benefits roof decks. Step 3 apply sealer.

First it s designed to be waterproof and walkable whereas most other flat roof materials are not. One advantage these waterproof deck systems have over simply screwing roof panels to the bottom of the joists is that you can remove a section to gain access to the joists if necessary. Ames contouring roof fabric. Raintight panels made of aluminum lock together to create waterproof joints.

There are a few things that make pvc decking different in regards to roof decks. Gacodeck coatings provide an added measure of safety with slip resistant granules. How to waterproof a flat roof deck. Use a paint brush along all edges and a roller to apply the deck coating to the surface and partially up the wall to waterproof those areas.

Make sure it s free of all dirt and debris. You can see how i do that in the video above. There are a number of icc es listed manufacturers of class a walking deck systems see class a fire resistant walking and roof deck systems sidebar. Let that dry before applying the full first coat of liquid rubber on the surface.

Let each coat dry completely in between.