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Home > Archive > Building and Construction > March 2006 > Does gypcrete rot wood?
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Does gypcrete rot wood?
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| Hi All,
I ordered some 2x4s the other day to use as sleepers for a hydronic
heat/gypcrete/bamboo floor system in our new house. I told the salesman
what I was going to use the 2x4s for and he asked if I wanted treated ones.
I asked why and he said that the lime in the gypcrete would eat the
untreated wood. I have not heard of this before. (I am not a contractor)
The subfloor sheathing and bottom plates are not treated. What are your
opinions on this?
Thank you,
Jim
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| I am not aware of any problems between lime and wood. Treated
wood is used for wet, mold, mildew, rot.
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)
dgriff237@7cox.net
"JDS" <jsteebyOMITTHIS@hotmail.com> wrote in message
news:122c7muitajb42a@corp.supernews.com...
> Hi All,
> I ordered some 2x4s the other day to use as sleepers for a
> hydronic heat/gypcrete/bamboo floor system in our new house. I
> told the salesman what I was going to use the 2x4s for and he
> asked if I wanted treated ones. I asked why and he said that the
> lime in the gypcrete would eat the untreated wood. I have not
> heard of this before. (I am not a contractor) The subfloor
> sheathing and bottom plates are not treated. What are your
> opinions on this?
> Thank you,
> Jim
>
>
>
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| Budweiser 2006-03-26, 7:21 pm |
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"DanG" <dgriff237@7cox.net> wrote in message
news:JxzVf.830$C85.698@dukeread10...
>I am not aware of any problems between lime and wood. Treated wood is used
>for wet, mold, mildew, rot.
> ______________________________
> Keep the whole world singing . . . .
> DanG (remove the sevens)
> dgriff237@7cox.net
>
>
>
> "JDS" <jsteebyOMITTHIS@hotmail.com> wrote in message
> news:122c7muitajb42a@corp.supernews.com...
>
>
In the UK treated timber is the norm,but our climate is should we say
"damp".
From the gypcrete website it appears that using untreated timber is not
detremental----ask your gypcrete supplier for confirmation
http://www.maxxon.com/product_detail.asp?ID=1
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"Budweiser" <herethere@everywhere.com> wrote in message
news:6BEVf.14942$H%3.4409@newsfe5-gui.ntli.net...
>
> "DanG" <dgriff237@7cox.net> wrote in message
> news:JxzVf.830$C85.698@dukeread10...
>
> In the UK treated timber is the norm,but our climate is should we say
> "damp".
> From the gypcrete website it appears that using untreated timber is not
> detremental----ask your gypcrete supplier for confirmation
> http://www.maxxon.com/product_detail.asp?ID=1
Thank you, DanG and Budweiser - I'll give the supplier a call tomorrow.
Jim
>
>
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| Robert Allison 2006-03-27, 8:21 pm |
| DanG wrote:
> I am not aware of any problems between lime and wood. Treated
> wood is used for wet, mold, mildew, rot.
> ______________________________
> Keep the whole world singing . . . .
> DanG (remove the sevens)
> dgriff237@7cox.net
....and ground or concrete contact.
>
>
> "JDS" <jsteebyOMITTHIS@hotmail.com> wrote in message
> news:122c7muitajb42a@corp.supernews.com...
>
>
>
>
--
Robert Allison
Rimshot, Inc.
Georgetown, TX
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| John Reddy 2006-03-29, 10:21 am |
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The treatment in treated wood is an insecticide. It does not prevent
wet rot or dry rot, it merely repels insects. It will have no effect on
lime which shouldn't do any significant damage to the wood by itself.
In article <VX_Vf.4816$f21.4349@trnddc01>,
Robert Allison <robert272@spamless.net> wrote:
[color=darkred]
> DanG wrote:
>
> ...and ground or concrete contact.
>
>
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| Robert Allison 2006-03-29, 10:21 pm |
| John Reddy wrote:
> The treatment in treated wood is an insecticide. It does not prevent
> wet rot or dry rot, it merely repels insects. It will have no effect on
> lime which shouldn't do any significant damage to the wood by itself.
That is totally incorrect.
From Wikipedia:
"Timber treatment in forestry describes the intensive
treatment of timber with chemical agents to increase its
durability and ability to be used in an otherwise
inappropriate situation like inground use. Timber or lumber
may be treated with a preservative that protects it from being
destroyed by insects, fungus or exposure to moisture."
And from the forestry products site:
"ACQ Pressure-Treated Lumber – FAQ
Answers to common questions about pressure-treated lumber.
ACQ Pressure-Treated Lumber– A Wood Preservation
Lumber’s greatest enemy is biological attack — destruction by
termites, fungi, marine borers and bacteria. After more than a
half century of scientific tests and practical experience with
various treating chemicals, there is a variety of weapons that
have been formulated to protect wood against insects, rot and
decay."
From my experience with construction, I know that any wood in
contact with concrete or concrete type products must be
treated. It is code here (All lumber in contact with ground
or concrete must be treated). You would be advised to gain a
greater understanding of the uses of treated wood.
--
Robert Allison
Rimshot, Inc.
Georgetown, TX
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"Robert Allison" <robert272@spamless.net> wrote in message
news:woGWf.49916$6%2.45527@trnddc08...
> John Reddy wrote:
>
>
> That is totally incorrect.
>
> From Wikipedia:
>
> "Timber treatment in forestry describes the intensive treatment of timber
> with chemical agents to increase its durability and ability to be used in
> an otherwise inappropriate situation like inground use. Timber or lumber
> may be treated with a preservative that protects it from being destroyed
> by insects, fungus or exposure to moisture."
>
> And from the forestry products site:
>
> "ACQ Pressure-Treated Lumber – FAQ
>
> Answers to common questions about pressure-treated lumber.
>
> ACQ Pressure-Treated Lumber– A Wood Preservation
> Lumber’s greatest enemy is biological attack — destruction by termites,
> fungi, marine borers and bacteria. After more than a half century of
> scientific tests and practical experience with various treating chemicals,
> there is a variety of weapons that have been formulated to protect wood
> against insects, rot and decay."
>
> From my experience with construction, I know that any wood in contact with
> concrete or concrete type products must be treated. It is code here (All
> lumber in contact with ground or concrete must be treated). You would be
> advised to gain a greater understanding of the uses of treated wood.
>
> --
> Robert Allison Rimshot, Inc.
> Georgetown, TX
Thanks to everyone for their responses. I talked with my gypcrete supplier
and they don't require the wood to be treated. However, I found this
information from Maxxon: http://www.gypcrete.net/documents/2000%2Dsf%2Edoc
which says that they have a primer that goes down before the gypcrete.
I'll keep searching for info....
Jim
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