Keeping Water Out of Decks

Careful detailing of trouble spots ensures longevity

Predictably, our climate causes a lot of water-related problems, making good flashing details paramount to the longevity of decks and the houses they are attached to.


Moisture Management

  • Field-Treating Pressure-Treated Pine

    Even though it's not required by code, it's a good idea to treat all cuts and penetrations in PT pine with copper naphthenate-if you can find it

  • Making Porch Floorboards Last

    During many years as a restoration contractor, I bet I’ve replaced over a mile of rotten porch floorboards. Today’s fast-growth lumber has very little natural resistance to rot, so it’s vital that you completely seal the boards before they’re installed.

  • Landscaping designs and decking without gaps can drastically affect the drying potential of the framing beneath the deck.

    Decay Resistance and the Code

    Using decay-resistant lumber, field-treating cut ends with preservative, and providing adequate airflow are all ways to help prevent wood decks from rotting. But when are they required by code, and when are they a good idea even if not required?

  • Everflashing Ledger Flashing

    Preformed flashing is designed to protect the ledger connection with the house

  • Cofair Products Deck Flash Barrier

    This self-adhering peel-and-stick membrane protects joist tops from moisture damage




All Decking & Railing Articles

  • 10 New Products You'll See at DeckExpo

    Deck lighting and thermally modified wood are among the trends we'll be spotting at the show.

  • GRK Has New Deck Screw

    The Kameleon Composite Deck Screw from GRK Fasteners has features designed to reduce both driving resistance and splitting. Fasteners are code-approved for treated lumber and are now available in colors that match Trex Select decking, according to the company.

  • Demand for Decking to Grow

    Demand for decking in the U.S. is expected to rise 2.4% per year through 2018 to a total of 3.5 billion lineal feet, according to The Freedonia Group. The five-year period from 2008-2013 was "lackluster," the market analysis company said, but resurging residential construction should help push...

  • These posts and rails are made of treated southern yellow pine, while the balusters are aluminum. Note the post-mounted built-in deck lighting, a great upgrade for dining after dark.

    Custom Railings

    While rail kits are popular, some deck builders prefer to distinguish their projects with custom site-built railing designs.

  • GreenTek Tools Demo-Dek Demolition Tool

    For speedy deck demo, this tough tool is hard to beat

  • Burned Decking

    Sunlight reflected from distorted window glass burns an arc pattern into Trex decking


    Wild Hog Railing Wire Mesh

    Openings are small enough to be in compliance with the 4-inch-sphere rule

  • AGS Stainless Starlight LED Accent Lighting

    Solar-powered stainless steel fixtures are designed to complement cable railing

  • Adjustable Tensioning Mechanism for a Gate

    Anticipate movement in the framing by building in an easy way to adjust the gate post

  • Vinyl, Composite, and PVC Fencing

    Improved quality and durability has fueled demand for fencing that’s not made of wood

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