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Kiln Drying

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Blog entry by Barngirl posted 11-16-2013 02:16 AM 979 reads 0 times favorited 8 comments Add to Favorites Watch

I was just wondering what everyone’s thoughts were on kiln drying…
My boyfriend and I were having a discussion about kiln drying wood and he thinks that you DO NOT have to kiln dry reclaimed wood. I KNOW you do have to! lol Any thoughts or helpful articles?
Thanks in advance!
Enjoy your weekend!



8 comments so far

View FaTToaD's profile

FaTToaD

385 posts in 1836 days


#1 posted 11-16-2013 03:39 AM

I’ll bump this back to the top. I’m interested in seeing what people have to say.

-- David

View pintodeluxe's profile

pintodeluxe

3463 posts in 1508 days


#2 posted 11-16-2013 03:47 AM

Reclaimed is not enough information to answer your question. If it was reclaimed from inside of a home with forced air heat, then it will not need to be dried, as M.C. will already be 6-8%.
However if it was reclaimed from a barn in my area, it will be around 15% and will need further drying.
As always, consider the end use of the lumber. For instance lumber destined to become an outdoor Adirondack chair—- 15% will work just fine.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View Bluepine38's profile

Bluepine38

2919 posts in 1780 days


#3 posted 11-16-2013 08:27 PM

What is wrong with air drying, just letting it set for a year or two if it has too high a moisture content.

-- As ever, Gus-the 75 yr young apprentice carpenter

View Barngirl's profile

Barngirl

24 posts in 364 days


#4 posted 11-17-2013 12:08 PM

It is lumber that is stored outside AND reclaimed from a barn! Come on people… No one has any input here???
everyone must be enjoying their weekend! lol
Well I say that the material needs to be kiln dried in order to prevent warping and movement.
Also to kill any insects that may be nesting in there!
And just in case FYI… WE DO KILN DRY OUR WOOD!!! :)

View kizerpea's profile

kizerpea

746 posts in 1063 days


#5 posted 11-17-2013 01:25 PM

If its old barn wood.no pallet wood yes..wood is like a sponge it will suck in moisture..kiln dryind collapses the cells that hold that moisture..there for limits the amount it will retain..also kiln drying will kill wood boring insects powder post beetles an such

-- IF YOUR NOT MAKING DUST...YOU ARE COLLECTING IT! SOUTH CAROLINA.

View robscastle's profile

robscastle

1846 posts in 899 days


#6 posted 11-18-2013 06:33 AM

All Kiln drying of wood does is speed up the process and regulates the drying.

Plus the added debugger and possibly some other advantages however

Once its out of the kiln it will return to its MEQ

Moisture Equilibrium Quotient.

Meaning if the moisture content off the ambient conditions are higher than its kiln state it will increase in moisture.
If the ambient conditions are lower than the kiln it will loose moisture and stabilise to ambient.

-- Regards Robert

View NormG's profile

NormG

4259 posts in 1699 days


#7 posted 11-19-2013 02:20 AM

I agree barn wood no, unless it is testing with extreme moisture content, pallets, (I love reclaimed wood), yes they need to be dried. Kiln if available, because you may not know where they originiated

You may also make solar kiln

-- Norman

View Barngirl's profile

Barngirl

24 posts in 364 days


#8 posted 12-13-2013 12:53 AM

Sorry, been MIA for awhile.. (little vaca).. If you mill barn beams into flooring.. the wood would be dry enough? I think not! lol

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