Any dirt and debris will keep your waterproofing sealer from sticking to the lumber.
How to waterproof a flat roof 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.
Applying gacodeck adds the waterproofing layer to a roof deck.
Step 3 apply sealer.
Building waterproof roof decks.
How to waterproof a flat roof deck.
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.
That means that not only does it act as a roof for the underlying structure it also acts as a deck membrane.
Make sure it s free of all dirt and debris.
Roof decks are typically constructed so that a layer of waterproofing material is sandwiched between the roof substrate and a floating deck on top.
Step 1 clean the deck.
Step 4 remove excess sealer.
A roof deck supports the roof elements but does not provide complete protection.
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.
Gacodeck coatings provide an added measure of safety with slip resistant granules.