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post #1 of 15 (permalink) Old 09-24-2014, 01:33 PM Thread Starter
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Okay, Stick; now what?
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post #2 of 15 (permalink) Old 09-24-2014, 01:35 PM
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Originally Posted by DaninVan View Post
Okay, Stick; now what?
hang in there...
I only type very slowly...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #3 of 15 (permalink) Old 09-24-2014, 01:38 PM Thread Starter
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I'll come back later; Max-the-dog has his legs crossed. (Speaking of fence posts )
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post #4 of 15 (permalink) Old 09-24-2014, 02:06 PM
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Let's start w/ the PT...
If you got it from a BB...
About all the big boxes carry is 0.1 and 0.2 (read the labels) unless it's special ordered... Next time you cut up some BB-PT look at the cross section... More often than not the green doesn't always makes it all the way to the center either...
Think of all that BB-PT that has been improperly installed because of the lack of knowledge...

The chemicals in treated wood are generally not good for humans. This is why you see warnings advising you to wear gloves, avoid breathing the sawdust, and refrain from burning treated wood. Keeping small children away from treated wood is also a good idea....
ever notice how fast a PT splinter goes septic???

next the concrete...
in short the CC keeps the post wet promoting rot...
posts set in gravel let the post be as dry as it can be relative to conditions...
ever wonder why bases are used at the base of wooden columns that are set on top of CC piers????
Post Bases and Column Bases from Phoenix Metal Products

sealing the end
closing off the end grain prevents wicking of water... end grain acts like a sponge...
been using molten wax for generations - it works...

tip:
need molten wax often???
yard sale crock pot works wonders keeping it molten...
just dip...
Attached Files
File Type: pdf PRESSURE TREAT.pdf (83.2 KB, 51 views)

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #5 of 15 (permalink) Old 09-24-2014, 04:40 PM Thread Starter
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Stick; virtually all the P.T. lumber available up here is ACQ . My understanding is that here in Canada they can't sell CCA treated product at retail. I've been told it's still available to industrial users; power poles etc.

" Chromated Copper Arsenate (CCA-C), Alkaline Copper Quat (ACQ-C, ACQ-D, ACQ-D Carbonate), Micronized Copper Quat (MCQ), Copper Azole (CA-B & CA-C, μCA-C) and Sodium Borates (SBX/DOT).
These treatments are often referred to by trade names such as: Wolmanized Natural Select™ (Copper Azole), Preserve and NatureWood® (ACQ), MicroPro™, Smart Sense™ (MCQ), and Advance Guard® (Borate). Each preservative usually has a number of variations available so care should be exercised when specifying treated wood."

I've never seen a 4x 4 that's been saturated right through. The point of treating is to create a total envelope that prevents organisms from penetrating through to the good stuff. If the installer doesn't do a thorough job of treating any and all cuts and bored holes, well then it was a waste of money buying P.T.
As to the hazard in playgrounds, MILLIONS have been spent/wasted doing remediation of playground equipment and the ground around the equipment, with little or no evidence that it actually presented a serious hazard. (But giving your kid a cellphone that emits frequent RF is OK?!)
ACQ does not contain Arsenic. And if it did, so what? Arsenic occurs naturally in the soil. As long as the little rugrats don't eat it, how much are they going to ingest?
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post #6 of 15 (permalink) Old 09-24-2014, 04:51 PM
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In Canada the ACQ replaced the CCA because of the arsenic I was told. The government considered it too toxic.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #7 of 15 (permalink) Old 09-24-2014, 05:05 PM Thread Starter
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Charles; there was a huge issue during the CCA era with the lumberyards distributing containers of CCA as end cut solution. Installers wer being totally reckless with both the solution itself as well as the empty/almost empty containers. There was also a big stink about treated shipments leaving the treatment plants still dripping wet ie contaminating everything they came into contact with. All of the above led industry to drastically rethink and research the whole PT concept.
The condo rot explosion led to the implementation of Borate treated plywood, for re sheathing affected buildings.

When I think back to my early years in construction, basically taking baths in pentachlorophenol, I'm lucky to still be alive.
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post #8 of 15 (permalink) Old 09-24-2014, 05:06 PM
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follow the chart..
if you want to stick a PT post in the ground you need PT rated at least at .4...
you'll find .4 and better are consistent color all the way through... even for 6x8's...
.1 and .2 from the BB's are ornaments....(UC.1 Interior Dry, UC.2 Interior Damp)...
PT decks need .3A and people wonder why things go south because the used the wrong stuff and didn't know...
know your product...

UC.1 Interior Dry
UC.2 Interior Damp
UC.3A Exterior Above Ground, Coated with Rapid Water Runoff
UC.3B Exterior Above Ground, Uncoated or Poor Water Runoff
UC.4A Ground Contact, General Use
UC.4B Ground Contact, Heavy Duty
UC.4C Ground Contact, Extreme Duty
UC.5A Marine Use, Northern Waters (Salt or Brackish Water)
UC.5B Marine Use, Central Waters (Salt or Brackish Water)
UC.5C Marine Use, Southern Waters (Salt or Brackish Water)
UCFA Interior Above Ground Fire Protection
UCFB Exterior Above Ground Fire Protection

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
Stick486 is online now  
post #9 of 15 (permalink) Old 09-24-2014, 05:19 PM
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That's a good list to see Stick. I put a PWF foundation under my house but I don't remember if thee was any other certification on the wood other than that at the time (around 25 yrs ago). It was CCA. It also wasn't treated to the center, only about 3/8". I was supposed to treat any cuts with end cut preservative, which I did. The remainder of the last can sat around for a while and eventually the stuff ate a hole in the can. Nasty stuff.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #10 of 15 (permalink) Old 09-24-2014, 05:24 PM Thread Starter
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I can't argue with your point, Stick; I don't buy from the big box guys. My local lumberyard sends their own material out for treatment. For sure there's a little tag on the end but it's really meaningless. Sort of like the CSA stamp of approval. :0

The other issue not yet discussed is wood species and rot. Most of the construction grade PT lumber is Hemlock, decking is SPF...mostly Pine I think.
I used to custom order D.Fir but they didn't like doing it as the solution couldn't penetrate the D.Fir fibres very deeply. Same for W.R. Cedar...but it sure looked better treated!
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