Replies

1. 
   Robrehm | Feb 08, 2005 07:10am | #1

   http://www.duradek.com

1. 
   Gumshoe | Feb 08, 2005 06:34pm | #3

   thanks, I'll check into that. Have you had good success with it?

1. 
   Robrehm | Feb 10, 2005 06:32am | #14

   Huck the luck I've had is great. Not a cheap product & has to be installed by a dealer but no problems and every one loves it.

2. 
   JohnSprung | Feb 08, 2005 10:03pm | #5

   I checked into Duradek once.  They don't sell here in LA because the smog people won't let them.  So it's important to check out the local laws.

    

   -- J.S.

    

1. 
   Robrehm | Feb 10, 2005 06:34am | #15

   JOhn I wonder if you were given bad info. I called the US office & was told they have a distributor in L.A. & it is installed all over out there.

1. 
   JohnSprung | Feb 11, 2005 03:53am | #16

   Maybe that, or maybe I got them confused with some other deck product that had an AQMD issue.  I'll make a note of their web site for when I get around to re-doing the deck.

    

   -- J.S.

    

2. 
   Piffin | Feb 08, 2005 07:32am | #2

   search archives here for EPDM and decks

    

    

   Welcome to the
   Taunton University of Knowledge FHB Campus at Breaktime.
    where ...
   Excellence is its own reward!

1. 
   Gumshoe | Feb 08, 2005 06:36pm | #4

   thanks - are we talking welded seam membrane? I'll have to research when I get a little more time. I had only used welded-seam membranes in roof applications, didn't know it was suitable for decking also. Like I say, I appreciate the heads-up and will research the archives.

3. 
   Pnut | Feb 08, 2005 10:15pm | #6

   You might want to check out Universal Protective Coatings...especially their Deck 70 product---If you use the 2 part undercoat (the name of which escapes me), you will have a water proof membrane that will last years...You will, however, likely need to put down a plywood substrate, but ask them:

   Universal Protective Coatings

   3175 Kerner Blvd. San Rafael, CA 94901   Phone: 415-457-9800 Fax: 415-457-5817   Good luck with your project.

    

1. 
   Gumshoe | Feb 08, 2005 10:36pm | #7

   Thanks, I'll look into it. I always prefer something I can install myself, 'cause then I make more money on the job. But of course bottom line is I want something that will hold up, and thats a big open deck to cover. Yeah, I figured that deck will need something over the planks, thats the goofiest detail for waterproofing a deck I've ever seen, and its a big custom home. But that may be a homeowner addition at some point, I don't know.

4. 
   scottbr | Feb 08, 2005 10:46pm | #8

   Duradeck is PVC membrane with heat welded seams, meant for deck applications.

   EPDM is adhesive or butyl seams and not meant to be used as a walkable deck membrane.

   Both will require a better substrate to adhere to.   Duradeck should be on G1S T&G with seams and fasteners filled.   EPDM can go over regular plywood, and will require decking of some sort over top.

1. 
   Gumshoe | Feb 09, 2005 08:38am | #9

   hmmm, that might be an issue, come to think of it. He's got a glass slider with a low threshold, and anything I do to raise the level of the deck surface could potentially create an intrusion problem at the door. Have to think this one over carefully. Maybe I could get him to put a roof over the door area? (just thinking to myself) Thanks again Scott and everyone for all the helpful insights!

1. 
   scottbr | Feb 11, 2005 03:05pm | #17

   Huck, how much clearance do you have at the threshold?   All you need is 2" +/-.  If you use 5/4 decking layed on 5/4 decking as sleepers you would only need 2" ?

   That way you could use EPDM over plywood and lay out new decking to walk on and be able to do it yourself.

1. 
   Gumshoe | Feb 11, 2005 05:21pm | #18

   the threshold is pretty close to flush with the deck surface now. I was hoping for a thin membrane or coating that could do the job. If I go over an eighth of an inch, I'm afraid water intrusion will be an issue, as there is virtually no overhead protection, and the deck slope so slight. HO says putting a roof over it is OK, if I add skylights and keep it sunny. Problem is, the cost starts increasing dramatically if I include a roof in the deck proposal. Someone said fiberglass, which idea I liked, but seems like everything needs a more stable substrate than 2x6 edge-to-edge. HO is being patient, but I've yet to come up with a satisfactory proposal.

1. 
   scottbr | Feb 11, 2005 07:54pm | #19

   Raise the threshold and trim the door?

2. 
   Gumshoe | Feb 12, 2005 11:22pm | #24

   "Raise the threshold and trim the door?"I did think of that, but its a sl. glass door in a metal frame., stucco exterior, so that makes it impractical.

   Edited 2/12/2005 7:32 pm ET by Huck

5. 
   davidmeiland | Feb 09, 2005 09:02am | #10

   Sarnafil

1. 
   Gumshoe | Feb 09, 2005 09:47am | #11

   thanks David, I've emailed Sarnafil to see if they recommend it for this application, and to see if its available here in Bakersfield Ca.

1. 
   scottbr | Feb 09, 2005 02:42pm | #13

   Sarnafil is another PVC membrane with heat welded seams, same type of application as Duradeck.  I do not think they have a walkable deck surface and their regular membrane is as slippery as ice when wet.

2. 
   BossHog | Feb 11, 2005 11:28pm | #21

   Caulk and outdoor carpet sounds like a REALLY bad combination. That lumber should decay in no time.I was visiting a friend's house a while back, and they had a similar situation. They had solved it with some pieces of sheet metal suspended under the deck that dumped into a couple of gutter sections. Call it "faux redneck".Wish I had some pictures of it.(-:
   If you lend someone $20, and never see that person again, it was probably worth it.

6. 
   DonCanDo | Feb 09, 2005 02:17pm | #12

   I had a customer who wanted to keep the rain off the patio underneath.  Since he wanted to do it absolutely as cheap as possible, I suggested fiberglass roof panels underneath the deck joists sloped away from the house.  Headroom was not an issue.

   Ultimately, he changed his mind, but I still think it could have given him what he wanted.

   -Don

7. 
   roofdoc | Feb 11, 2005 10:56pm | #20

   http://www.dec-tec.com comes in four colors heatweld or solvent weld seams

1. 
   scottbr | Feb 12, 2005 02:06pm | #23

   doc.... I did not see in their spec's where you could use solvent for the seams.... far as I know PVC is heat weld.

8. 
   Dez | Feb 12, 2005 12:13am | #22

   I like the Elastomeric products...no seems...and good installers have come up with many decorative colors and installations. You do need a good plywood underlayment for a wood (roof) deck.