Make sure it s free of all dirt and debris.
How to waterproof a flat roof deck.
Step 4 remove excess sealer.
That means that not only does it act as a roof for the underlying structure it also acts as a deck membrane.
Building waterproof roof decks.
Step 1 clean the deck.
Step 2 cover the deck.
Some deck builders simply frame these decks flat and leave it to me to solve the problem by sloping the base coat of my cementitious coating like a giant shower pan.
Any dirt and debris will keep your waterproofing sealer from sticking to the lumber.
But this potentially adds a significant load to the deck since the average 1 4 inch thick coating weighs about 2 1 2 pounds per square foot.
How to waterproof a flat roof deck.
One of the best choices for flat roof decks is pvc roofing material which is proven to be completely watertight durable and long lasting.
Gacodeck coatings provide an added measure of safety with slip resistant granules.
Here s how tufdek waterproof decking stands out on a flat roof deck.
The coating becomes an integral part of the surface and provides the necessary protection against the elements.
Although it s a waterproof roofing material it has an extra quality.
Roof decks are typically constructed so that a layer of waterproofing material is sandwiched between the roof substrate and a floating deck on top.