I have a customer with cantilevered decks that stack one over one over one. The lowest deck has plywood decking and formerally had indoor/outdoor carpet. The deck above is standard 5/4 pressure treated pine. They had luck (for a while) with site bent aluminum installed between the joists to act as “pans”. Each pan was shaped to flow water away and out to a gutter(clever right?)Over time the 5/4 deck boards allowed dirt, organics and I assume pet urine to flow through and gather on top of the pans and in time the aluminum corroded and now the pans leak. Without removing the deck boards I am looking to waterproof the pans. One suggestion is to use a rubber based foundation spray by “RUB R WALL”. I don’t know if this will work but I need a solution. Please suggest
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IMO
This soiunds like it was a bit of a mickey Mouse ( no offense intended, Mickey) design to begin with,and they were lucky with the limited sucess. So putting a band aid on it is not likely to last very long, and that stuff is not cheap, IIRC
Piffin,
Funny you should mention this. Mickey and Rube were discussed at great length as well as the band aid. Mickey aka (stepson) gave it a shot. My customer just had the deck above refinished and doesn't want to tear it up. This may be the only way to solve the problem short of moving dinner parties indoors in th rain
There used to be a commercial product, made of plastic, that installed like the aluminum pans. Haven't seen it mentioned recently, though.
I'm trying to think of some readily-available plastic product that could be used here. Can't you remove the "ceiling" below to fix this?
Response to Dan
Dan,
It was suggested to me that I look up a company called "Cadeco" (I think). They mat have the plastic pans you suggest. I have emailed their tech support but no reply yet. I do have the ceiling below opened up and have good access from this side for the repair
What about?
What about PVC pipe cut length ways, either sitting above or below the corroded aluminium? - If I have visualised the situation correctly.