Waterproof Decking Materials & Options
While water gives life, it also destroys, especially when it comes to construction. In fact, your home may have no greater enemy than water.
Decks are typically designed with spacing between boards to help create drainage. While draining can be helpful and prevent water from pooling on your deck, the spacing may allow water to seep underneath decking boards, where it can become trapped on wooden joists. It can also create problems when you want to use the area beneath your deck.
That’s why, as you plan for a deck, waterproofing should be your top priority. From waterproof decking boards to aftermarket sealers, exploring all of your waterproof decking options is an important step in making an informed decision about which choice is right for your situation.Let’s take a top-down approach.
How to Waterproof Your Deck Boards
hi I'm Chase Gardner and I'd like to
show you the best way to waterproof your
deck any homeowner will tell you that
building a deck is a great Home
Improvement and it comes with a
significant investment when building an
elevated deck waterproofing the
underside will double your usable
outdoor living space creating a dry and
protected area that can be a finished
space or used as dry storage also to
protect your investment it's important
Importance of Waterproofing the Deck You Are Building
to keep the deck framing dry to prevent
wood rot and Decay which extends the
life of your deck to accomplish these
things you should consider installing an
Under Deck Drainage System
under deck drainage system which is best
done when installing a new deck since
the system is installed over the joists
and under the deck boards
an over the joist deck drainage system
such as Trex rain escape diverts water
through drainage troughs and downspouts
to a gutter system that then drains
water runoff to the ground it provides
complete protection from the damage
caused to the joists and other wood
framing repeatedly getting wet it covers
and protects all the wood substructure
and can be installed with any type of
deck whether you have composite or wood
decking installing a deck drainage
system like Trex rain escape can be done
Steps for Installing an Under-Deck Drainage System
a) Materials and Tools Needed
by a professional deck builder or a
do-it-yourself homeowner it's simple and
only requires a few tools a utility
knife a staple gun or Hammer attacker
and a caulking gun
step one you'll install the downspouts
at The Rim joist
b) Install the Trex RainEscape downspout
at the ledger board
or at the beam
next you'll unroll the trough material
c) Install the Trex RainEscape trough
using the inch and a half score Mark as
a guide and on the second joist you'll
put a quarter inch of slope per foot
installing the trough is the most
important step since it's the
waterproofing membrane that creates your
drainage slope and collects the water
that drips through the deck boards
after installing all the downspouts and
trough cover all your joists seams and
d) Tape all seams
framing with Trex rain escape 4-inch
please visit trexrainescape.com for full
installation instructions and how-to
videos once the deck drainage system is
installed you can finish off the space
Finishing the Under-Deck Area
below the deck by adding an under deck
ceiling lighting and fans furniture and
even installing an outdoor kitchen by
using the Trex rain escape deck drainage
system you can protect the wood
Recap and Conclusion
substructure from developing mold rot
and wood Decay which typically happens
at around 8 to 10 years if you're
building an elevated deck be sure to
install a deck drainage system like Trex
rain escape it will be well worth your
Starting from the top -- the decking boards -- the waterproofing begins. Composite boards, by manufacturers such as Trex, don’t need additional sealing or waterproofing. Trex decking, made of 95 percent recycled materials, won’t rot or warp and never needs staining or painting. If you are building a wood deck, you can often benefit from additional protection. The most common ways include sealers, coatings, and vinyl membranes.
If you choose wood boards, you need to maintain and seal the wood properly. Applying a clear sealant keeps water from seeping into the porous surfaces of the wood and reduces the risk of rot.
Water should bubble up on your deck like on a waxed car. If it doesn’t it is likely time to seal again. Most builders recommend sealing wooden deck boards every one to three years. Check the manufacturer’s directions on your sealant for more guidance.
Deck coatings are a thick substance -- that can be made from liquid rubber polyurethane, latex, enamel, acrylic or other material -- that are used to resurface a deck and make it waterproof. Adding a new coating requires cleaning and preparation of the surface. The prep work is worth it, though, as the results can be slip resistant, available in a wide variety of colors. Coatings, however, can be difficult to apply and may peel easily. They can be applied similar to paint with a brush, roller, or spray. In addition to the time spent prepping and painting on the coating, the coating also needs time to cure and adhere to the deck.
Coatings are a polarizing method of waterproofing a deck among homeowners. Some feel they do a good job of masking cracks and splinters in wood decking. However, others feel that they are difficult to apply, can feel rough and gritty on bare feet, and can also make it difficult to repair a deck. As coatings can smooth over splintered wood, it can also make it difficult to find screws and other decking components in the event repairs are needed.
Like a sealer, coatings also require periodic cleaning. However, they are a more expensive and time-consuming method of waterproofing a deck.
On-deck membranes are basically waterproof flooring. Membranes can be constructed with materials that are resistant to mold, mildew, and UV. They can provide slip resistance that can be otherwise lacking from some kinds of decking. While membranes have a higher upfront cost than sealers, they don’t require re-application of fresh coats.
What is capped composite decking? It's a great option if you like the look of wood but not the maintenance. Learn about capped composite at Decks.com.
Nexwood composite decking is manufactured by Nexwood Industries Brampton, Ontario, Canada.
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