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Author Topic: Real air drying time?  (Read 877 times)

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Offline Satamax

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Real air drying time?
« on: May 05, 2018, 10:54:32 AM »
Hi everybody. 

Well, i need a floor for myself. I have a sawmill, planer, thicknesser, spindle molder, bandsaw etc. 

But the problem is the drying time for the larch. Admitting 1"1/4 sawn size.  How long would it take to be completely dry? 

Thanks a lot, and best regards. 

Max. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Offline Brad_bb

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Re: Real air drying time?
« Reply #1 on: May 11, 2018, 11:06:52 AM »
Well I'd say between 6 months to a year air drying would get you down to ambient of 12%-15% moisture content.  You can monitor that with a decent moisture meter.  But for in a house, you need it down to 8% roughlym which it will not do outside.  Theoretically you could sticker it in your house til it acclimates down.  I don't know how long that would take. Maybe a year? or two?  Or you could have it kiln dried to get it down to 8% or so, and then let it acclimate in your house for just a few weeks.  Of course your house is going be drier in the winter, so even in a house there are season changes in humidity.
Anything someone can design, I can sure figure out how to fix!
If I say it\\\\\\\'s going to take so long, multiply that by at least 3!

Offline Satamax

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Re: Real air drying time?
« Reply #2 on: May 11, 2018, 11:42:01 AM »
Thanks a lot Brad. Read an excerpt from a book which was saying 6 to 8 months. 

Well, i might take the chance to do my floor air dried. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Offline loganworks2

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Re: Real air drying time?
« Reply #3 on: May 11, 2018, 07:51:15 PM »
I did the floor in my last home with random width red oak 3.5 inch up to 12 inch. It was all Air dried for a year then planed to 7/8 and stickered in the living area in August. Then toung and groved in February. Then installed using screws and pegged. It was still tight as could be years later when I sold the house. 

Offline WDH

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Re: Real air drying time?
« Reply #4 on: May 11, 2018, 08:36:35 PM »
With fans on the air drying stack, I would say that larch would air dry to 15% in 3 months.  Then, if stickered inside a climate controlled house, it should acclimate in say 8 weeks or so. 

I did an experiment where I took some red oak air dried to 13.5% and planed to 7/8" thick inside my house and stickered it in the corner of a room.  Took measurements with a moisture meter every few days.  This was in March.  Took 5 weeks to dry to 9.5%, and it stayed at 9.5% all summer from March to September. 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5640SU, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

Offline Satamax

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Re: Real air drying time?
« Reply #5 on: May 12, 2018, 01:36:52 AM »
Thanks a lot guys.  I'll see what i can find logwise. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.


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