- Wahoo Building Products
- $
- Knowledge Base
- $
- DryJoistEZ Deck Drainage System: Resources and FAQs
DryJoistEZ®: Resources
- DryJoistEZ Spec (62 KB. Link opens immediately.)
- DryJoistEZ® Installation Guide (Opens in a new window.)
- DryJoistEZ Rack Card (4 MB)
- Product Performance Evaluation Per 2015 IBC/ICC and 2015 ADM Building Code Standards (Download will begin immediately- PE Stamps for 48 States –17 MB)
- DryJoistEZ Warranty (670 KB)
DryJoistEZ®: Frequently Asked Questions
Yes: A two-inch overhang beyond the header joist on the drainage side is suggested to shield the joists from backsplash due to heavy downpour and ease gutter installation. (Gutter installation is not required, but some people do choose to include one when they install DryJoistEZ.)
Installing gutters or downspouts is not required, although they can be installed if you would like to incorporate your deck space with landscape architecture. (To direct the flow of water and prevent sod erosion.)
No: DryJoistEZ can be installed with a minimum number of readily-available tools. No special tools are necessary for installation.
Yes: we suggest a minimum of 1/8” downward pitch per foot (away from the house). This is a minimal pitch that will not be visible to the naked eye, yet provides a slope for water to drain away from the structure.
- Carbide-tipped blade for cutting non-ferrous metals
- 12” blade-96 tooth
- 10” blade 80 tooth
- 7 ¼” blade 62 tooth
DryJoistEZ is a structural deck drainage system; this means that along with being 100% waterproof, it can also span up to six feet between supporting beams, which means it can replace some of the joists you would traditionally use to build your deck. The other popular deck waterproofing systems on the market are membrane systems and “under decking” systems that are installed below your deck joists. Both of these waterproofing methods come with labor-intensive installation processes and are effective only for limited amounts of time. The component materials used in the DryJoistEZ system are extruded from marine-grade aluminum, which makes them strong and extremely durable. When the DryJoistEZ system is installed, it provides a solid waterproof structure that will never leak. Additionally, DryJoistEZ is mounted on top of your deck frame, which extends the life of framing materials.
Yes: DryJoistEZ meets or exceeds deck building code specifications and guidelines for aluminum structures, as recommended by AA ADM 1 and required by the International Building Code – 2015.
Yes: DryJoistEZ is manufactured using 45% recycled content from industrial and post-consumer aluminum scrap metal. It also channels rainwater, which reduces pollution from stormwater runoff. Because of its recycled content and its ability to manage stormwater, DryJoistEZ also allows builders to achieve points toward LEED credit certification based on the standards set forth by the LEED Green Building Rating System, within the categories of Recycled Content of Materials, Construction Waste Management, and Stormwater Design.
Yes: DryJoistEZ was designed for compatibility with ACQ treated lumber. It contains a special powder-coated paint barrier to prevent ACQ contact with the bare aluminum.
DryJoistEZ provides the ultimate flexibility when it comes to your deck surface options. Your choices include composite deck boards, hardwoods, softwoods, etc. In essence, DryJoistEZ has support every four inches to six inches, which allows you to fasten your deck boards every 4”/6”/8”/10”/12”.
