| Author | Message | Selva Lee Tucker 
Posts: 634
Since: 5/25/2008
|  7/4/2008 1:22:49 AM 
find the flaws,
the inspector saw cupping,,,he said in the report, that lack of
expansion space caused the cupping,,,ok, that part was easy,
but, how would you prove the expansion space was there or not,,?
??
2.25X.75 installed in an L shaped hall, five feet wide by 8 feet, and
five feet wide by 15 feet.,,,
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| Ray Darrah
Posts: 1411
Since: 2/18/2008
| 7/4/2008 12:42:22 PM
I'm sorry Selva,
I'm having trouble understanding this one. Can you clarify for us?
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| Stephen Perrera
Posts: 823
Since: 5/27/2008
| 7/4/2008 5:29:59 PM
He wants you to explain how you find out if expansion space was allowed by the installer to begin with.
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| Selva Lee Tucker
Posts: 634
Since: 5/25/2008
| 7/4/2008 7:15:05 PM
thank you Stephen,
slt
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| Ray Darrah
Posts: 1411
Since: 2/18/2008
| 7/4/2008 7:55:38 PM
I guess it is best an installer explain this one.
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| Stephen Perrera
Posts: 823
Since: 5/27/2008
| 7/4/2008 9:04:37 PM
You should have learned that if your NWFA Ray. Or don't they teach that there?
I am just a dumb uncertified installer, we are not required to know that, it's too techie.
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| Ray Darrah
Posts: 1411
Since: 2/18/2008
| 7/4/2008 9:26:58 PM
I understand. No problem.
I'm sure there are many installers who can help us with this question.
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| lindalockwood
Posts: 181
Since: 2/25/2008
| 7/4/2008 10:45:25 PM
Measurements will tell you if the wood expanded into the expansion space.
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| Selva Lee Tucker
Posts: 634
Since: 5/25/2008
| 7/4/2008 11:14:34 PM
yes,,,,,a very easy thing,,,,thank you,,,,this was for fun,,,now, the
inspector wrote up, after the floor cupped severely,,,,he was
commissioned to inspect it for cupping, that the lack of expansion
space caused it to cup,,,
a carpet mill said that sound kool to them,,,,until it hit the
manager! 
no meanness intended here,
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| Ray Darrah
Posts: 1411
Since: 2/18/2008
| 7/4/2008 11:22:32 PM
what is your point?
What was the moisture content upon installation?
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| Selva Lee Tucker
Posts: 634
Since: 5/25/2008
| 7/5/2008 12:58:55 AM
Ray,
would that be necessary???? if so, defend it.
politely
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| Ray Darrah
Posts: 1411
Since: 2/18/2008
| 7/5/2008 9:13:53 AM
what measurements to you do on this complaint?
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| Stephen Perrera
Posts: 823
Since: 5/27/2008
| 7/5/2008 1:18:38 PM
What was the mositure content when shipped out from the mill??
Do mills record this? Is every box consistant?
Will they tell you off the top of their heads or will the wood speak to you?
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| Selva Lee Tucker
Posts: 634
Since: 5/25/2008
| 7/5/2008 5:30:30 PM
Stephen,
he wants me to calculate MC at time of milling/manufacture,,,I
remember doing it for me but did not put it in the report,,,,
I remember it was in the 6% range,
the mc of the wood at time of inspection was in the 9 to 10%
range, coastal area of SC, subfloor was 14% average,
Rh in crawl space was, on a hot summer day, 80% at 78 to 80f.
vents open,,
outside Rh was around 70%,,,if I remember right,,,
Ray, all I did was establish, by doing six twenty board widths, an
average increase in size and showed the boards had increased in
size after milling, thus, any measurements taken after the
boards had increased in size were not of the original expansion
space....then I showed by counting the number of boards down
the hall, and the average increase in size???
I tried to keep it as simple as I could,,,ummm, is this making any
sense?
Stephen?
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| Stephen Perrera
Posts: 823
Since: 5/27/2008
| 7/5/2008 8:28:09 PM
Wood is milled at the size stated on the box. Why do we measure across numerous planks?
But, there is this other element...gaps. But ask yourslef will there be gaps if the claim is an expansion or cupping problem?
Dry cupping, wet cupping...high rh...low rh...I am so confused...so confused.
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| Selva Lee Tucker
Posts: 634
Since: 5/25/2008
| 7/7/2008 5:47:58 PM
the flaw, as usual the discussion got off topic,
was what caused the cupping to start the claim,
and how to disprove the statement that the lack of the required
expansion space caused cupping.....
any general agreement reached here? or just disagreement?
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