Replies

1. 
   Robrehm | Aug 01, 2008 10:19pm | #1

   It can & works as well or better.  Check with your inspector, they may not know about it.

   "this dog may be old but he ain't cold. And he still knows how to bury a bone."

   Lattimore

    

   http://www.rehmodeling.com

2. 
   BillHartmann | Aug 01, 2008 10:28pm | #2

   I am not sure of your wording.

   It can be used where it does not normally get wet.

   .
   .
   A-holes. Hey every group has to have one. And I have been elected to be the one. I should make that my tagline.
1. 
   blownonfuel | Aug 02, 2008 01:48am | #6

   Hello Bill. I should have worded my post better. The manufacturer suggest that Borate only be used on interior walls. Does this mean that it should not be used for the exterior walls of the home even though it will be protected by the siding? Should the exterior walls be plated with PT lumber and the interior with Borate or can Borate be used through out since the siding will keep the sole plates from getting wet anyway.

1. 
   BillHartmann | Aug 02, 2008 01:50am | #8

   The limitation that I have seen that they can't be used where exposed to weting.Not sure where I have seen that..
   .
   A-holes. Hey every group has to have one. And I have been elected to be the one. I should make that my tagline.

2. 
   Framer | Aug 02, 2008 04:24am | #11

   If you us it on the exterior walls, you will have sill sealer down first, so it won't be touching the slab anyway.Joe Carola

1. 
   blownonfuel | Aug 02, 2008 04:27am | #12

   That's what I was thinking but wanted to be sure.

3. 
   Snort | Aug 02, 2008 12:17am | #3

   I wouldn't use borate treated on a slab, unless it was somehow isolated. I have seen houses that had borate sprayed on exterior wall framing from bottom plates to about 2' up the studs... probably hell on the roaches that come with moving day<G>

   Now you see this one-eyed midget

   Shouting the word "NOW"

   And you say, "For what reason?"

   And he says, "How?"

   And you say, "What does this mean?"

   And he screams back, "You're a cow

   Give me some milk

   Or else go home"

1. 
   blownonfuel | Aug 02, 2008 01:40am | #4

   Hello Snort. Can you elaborate? Why would you not use it?

1. 
   Snort | Aug 02, 2008 01:51am | #9

   Apparently the borate leachs out if it gets wet. Since the house usually gets framed before the slab is fully cured, the borate treatment could be compromised. You may also want to check how your inspector feels about it.On a framed platform, I don't really see the need.I have read of folks using it as mud sills on foundation walls, just haven't seen it. It sure would be nice not having to worry about ACQ treatment eating up fasteners. Now you see this one-eyed midget

   Shouting the word "NOW"

   And you say, "For what reason?"

   And he says, "How?"

   And you say, "What does this mean?"

   And he screams back, "You're a cow

   Give me some milk

   Or else go home"

1. 
   atrident | Aug 02, 2008 03:45am | #10

    Dont you use the thin foam sill seal between the plate and concrete ? I dust the sill with boric acid to keep any pests at bay. Borate treated sounds better than acq. I dont see it leaching from week old concrete.

1. 
   Snort | Aug 02, 2008 04:46am | #13

   I think I mentioned it should be isolated, but I have never used the stuff. Now you see this one-eyed midget

   Shouting the word "NOW"

   And you say, "For what reason?"

   And he says, "How?"

   And you say, "What does this mean?"

   And he screams back, "You're a cow

   Give me some milk

   Or else go home"

4. 
   Jason99 | Aug 02, 2008 01:45am | #5

   In my area they are also not alowed to be exposed directly to a moist slab.  The moisture leaches out the borate.  We get away with tacking a layer of felt across the bottom before tipping the walls up.

   Jason

1. 
   blownonfuel | Aug 02, 2008 01:50am | #7

   Jason does that apply to a slab that has cured for months, or is that just for fresh slabs?

5. 
   Piffin | Aug 02, 2008 04:58pm | #14

   Here is the deal - the copper treatment is pretty well locked to the wood, but borates injected are still free and water soluble, so water moving through or across wood can dissolve the borates and leach them out of the wood.

   So after a time there will be no more protection from insects or from microorganisms that eat wood.

   I question when a slab would have that much moving water.

   There is a clear need for PT in contact with slabs and other concrete because the crete can wick ground water up and because in some cases, it can increase condensation out of the air, but in both of those situations, the moisture is genrally moving from the crete to the wood, so it would not leach the boron away from the wood.

   I have heard also that the treatment companies are working on ways to lock the boron to the wood. I don't know how the latest and greatest Borate PT wood is in this regard.

   Of course, if your question was about what is allowed under code to satisfy the AHJ. ask your local BI - his interpretation may have nothing to do with reality, but it will be the only one that counts - for you.

    

    

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

1. 
   jc21 | Aug 02, 2008 05:31pm | #15

   Can you still buy #10 (green) Cuprinol in Maine? Unavailable here .........or maybe I'm looking in the wrong place.Giving money and power to government is like giving whiskey and car keys to teenage boys. P. J. O'Rourke

1. 
   Piffin | Aug 02, 2008 06:13pm | #16

   I still have 'bout a half gallon left from a bunch I bought a few years ago. I have heard it is unavailable now, but I think I saw some ( with a new lable) on the shelf lately...So honestly - I don't really know. 

    

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