Replies

1. 
   Piffin | Nov 20, 2006 03:07am | #1

   First, search for threads here on keywords EPDM, IPE`, and roof deck.

   Do not use Vycor or bituthene if you have an EPDM roof. Not compatable.

   What I do is get extra strips of the EPDM from the roofer about 5" wide for under the sleepers, and tubes of EPDM caulk to use as dabs of adhesive to tack them down and to tack the slepers in place. That provides a slip/wear membrane.

   Use SS screws with your PT sleepers.

   IPE` is much more comfortaable on bare feet than Trex. Neither is considered good with less than 18" of ventilation under but we are all using it that way. be sure to allow for thermal expansion in your detailing with tREX

    

    

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1. 
   billwalls | Nov 20, 2006 03:40am | #3

   the roofing material i'm considering is the epoxy product made by metacrylics (http://www.metacrylics.com/application/). i would then build the deck over the epoxy roofing. i've been going back and forth on the epoxy and the EPDM. pro's and con's on either would be nice. i've also heard that one way to secure the sleeper system to the roof, without penetrating the roofing, is by keying in the whole deck framing with the 4x4 rail posts. seems to make sense. also seems like a whole lot of weight pushing against the posts. lastly, trex 5/4 only requires a minimum of 3 1/2" of clearance. i'll make that no problem. especially considering that the roof slopes down for the drainage.

1. 
   peteshlagor | Nov 20, 2006 04:49am | #4

   IF you have a sound and sufficiently engineered roof support system AND it does not nor is likely to leak,  Why not skip all of this decking issue and simply put on a walkable thin concrete deck system?

   http://www.miracote.com  use the search function for their MiraFlex II Decking System.

   About 3/4" thick.  Liteweight.  Class A fire rating.  Completely waterproof.  Totally customizable in color, texture, pattern.

    

1. 
   billwalls | Nov 20, 2006 05:13am | #5

   i haven't applied any roofing material yet. also, i like the look of the trex product we are planning to use. lastly, i'm not sure what i'd think about walking on a sloped surface for the next 20 or so years.

1. 
   peteshlagor | Nov 21, 2006 02:53am | #6

   Well, you don't mention where you're from, but my experience with a composite decking in Denver sux.  It gets so hot that the deck is unusable in the summer sun shine.

   A light colored ceement deck won't have that problem.

   You mention a slope.  The system I mentioned requires a 1/4" per foot slope.

   Wha's that?  1 foot over about 50?  That'll make your beer spill, won't it!

   It's totally unnoticable on mine.

    

2. 
   andy_engel | Nov 20, 2006 03:18am | #2

   Check that Trex can be used over such a small space. Some plastic decking has ventilation requirments, and they include minimum clearance to the underlying surface. I think that mainly applies to the T&G products, but I'm not sure.

   Andy

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