Replies

1. 
   Matt | May 30, 2010 01:32pm | #1

   Ledger flashing...

   I'm not understanding your use of the words fascia and rim joist - although I didnt see the article.

   Assuming you mean betweent he house and the deck, metal flashing used to be the standard stuff but I always had some misgivings once the ledger bolts and a few handfulls of 16p nails were punched throung to secure the deck ledger to the house.

   Now there is a number of vinyl or rubber like flexable flashings that do a better job of sealing around fasteners and it should have more longevity too.  Even peal and stick can be used and that is now available at the big box.  I have even seen 40 mil 12" poly (sometimes called visqueen) that can be used although it doesn't seal around the fasteners.

2. 
   calvin | May 30, 2010 01:54pm | #2

   Bengal.

   Are you talking between the rim of the deck and a covering of................?    to finish it off?

   I never have covered the rim I don't think...............on a finished porch, different story.

   I don't know of any rigid "rain screen" but no doubt one probably exists that would work to stand off the covering from the rim.  If not, how bout blocks of treeated or even pvc strips run vertical at every fastening point.  Your cover's fasteners would need to go through and penetrate the rim.

   Beats me, didn't remember the article, do you have an issue number?

1. 
   Bengal | May 30, 2010 05:06pm | #3

   Drainage Membrane

   It's actually in an article in a FHB magazine about decks that is currently for sale.  The author was wrapping the pressure treated rim joist with 1 x southern yellow pine that was stained to blend in with the IPE decking.  He put a "drainage membrane" between the pressure treated rim joist and the southern yellow pine to prevent rot between the two boards.  It wasn't clear what he used as a drainage membrane.

   Thanks for your replies. 

1. 
   DanH | May 30, 2010 06:10pm | #4

   Maybe he used a drainage membrane -- one of the housewraps with ridges.

2. 
   calvin | May 30, 2010 07:23pm | #5

   Can't give you much help

   but, why don't you email one of these overworked bloggers-the link to the blogs is up above by the masthead.

   Best of luck.

3. 
   Piffin | May 31, 2010 03:13pm | #9

   I rip shims 1/4" from off cut

   I rip shims 1/4" from off cut blocks of the framing PT and tack them vertically on every 12" or 16" sp water does not get trapped behind the trim facia.

3. 
   ki | May 30, 2010 10:19pm | #6

   i think they were using roofing membrane, like the stuff for ice dams at the eaves, cuz when u drive a nail/screw thru it, it self seals. sometimes its called blueskin

4. 
   Bengal | May 30, 2010 11:58pm | #7

   Enkamat #7010 Erosion Matting

   I found another article online by the same author.  The material is Enkamat #7010 made by Colbond Geosynthetics.  Thanks for all of the replies.

1. 
   DanH | May 31, 2010 08:14am | #8

   Interesting:

   http://www.colbond-geosynthetics.com/cms/generated/pages/products/enkamat/productfamily/1%C2%A7enkamat.html

   Enkamat is a flexible three-dimensional mat for immediate, permanent erosion protection on the most varied slope types. The open Enkamat product types are particularly suitable for use on steep dry slopes exposed to wind and rain and hence prone to erosion. Open Enkamat's artificial root structure with up to 1,800 m filament per m² creates an artificial root structure preventing soil eroding from steep slopes, river banks, landfill containments and other vulnerable areas.

   (The photos look like a crocheted scarf.)

   I would think that one of the mesh-type ridge vent products would work the same, though perhaps a bit thick.  With any of these, though, you have a problem that the material isn't solid and so you would have trouble getting the fascia solidly mounted on a single plane.