The Forestry Forum is sponsored in part by:

iDRY Vacuum Kilns


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.




Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Turbosawmill

Sawmill Exchange

Michigan Firewood, your BRUTE FORCE Authorized Dealer

FARMA


Baker Products

ECHO-Bearcat

iDRY Wood Lumber Vacuum Drying for everyon

Nyle Kiln Dry Systems






Author Topic: Kiln Container Built from Wood  (Read 632 times)

0 Members and 1 Guest are viewing this topic.

Offline DR_Buck

  • Senior Member x2
  • *****
  • Posts: 2929
  • Age: 67
  • Location: Farmville VA
  • Gender: Male
  • Nuff said.....
    • Share Post
    • Got Logs?
Kiln Container Built from Wood
« on: November 22, 2019, 08:13:10 AM »
I've ordered a second Nyle kiln, an L53 so that I can dry the small loads  I have customers bringing.    I will be building the container for this one instead of using an insulated sea container like for my DH-4000.  Many times I have customers with only 300-400 bf for drying.   My thought is to build the box large enough to hold  no more than 1000 bf.    I currently have a large amount of poplar and plan on building the box using that for framing and board & baton outside.   The floor will also be wood, probably untreated white oak.    It will be insulated all sides and top & bottom with 5" thick close-cell foam sheeting (R6 per in).   Then I thought maybe cover the inside walls with horizontal edge to edge 1x boards.    

Questions are:

1 - What will the impact of the changing moisture content do to the inside wall covering if it is 1x boards?

2 - Should I coat them with waterproofing such as aluminum roof paint, something else or leave them bare?

3 - The close cell foam board is water resistant, so I'm assuming I don't need a plastic vapor barrier under the inside       wall boards.     Correct?

Any other suggestions welcome

Hidden Acres Farm
Been there, done that.   Never got caught

Wood-Mizer LT40 Super- Wide HDG38
Lucas Dedicated 60" Slabber

Offline Southside

  • Administrator
  • *****
  • Posts: 5588
  • Age: 47
  • Location: Wilsons (Dinwiddie County), VA
  • Gender: Male
  • Have a plan to saw every log you meet.
    • Share Post
Re: Kiln Container Built from Wood
« Reply #1 on: November 22, 2019, 08:34:13 AM »
What is the temperature rating on your foam?
Franklin buncher and skidder
JD Processor
Woodmizer LT Super 70 and LT35 sawmill, KD250 kiln, BMS 250 sharpener and setter
Riehl Edger
Woodmaster 725 and 4000 planner and moulder
Enough cows to ensure there is no spare time.

Offline farmfromkansas

  • Full Member x2
  • ***
  • Posts: 170
  • Age: 68
  • I'm new!
    • Share Post
Re: Kiln Container Built from Wood
« Reply #2 on: November 22, 2019, 12:49:02 PM »
The closed cell foam will not absorb moisture like bead board, so it is a vapor barrier.  However, if you are using wood framing and putting the foam between, your framing could absorb moisture, so should probably put a layer of film over the wall on the inside.

Offline DR_Buck

  • Senior Member x2
  • *****
  • Posts: 2929
  • Age: 67
  • Location: Farmville VA
  • Gender: Male
  • Nuff said.....
    • Share Post
    • Got Logs?
Re: Kiln Container Built from Wood
« Reply #3 on: November 22, 2019, 01:05:39 PM »
What is the temperature rating on your foam?
I don't know, but it is high.  It does not melt and it is fire proof.   Used it in my new addition and the building inspector tested it.
Hidden Acres Farm
Been there, done that.   Never got caught

Wood-Mizer LT40 Super- Wide HDG38
Lucas Dedicated 60" Slabber

Offline GeneWengert-WoodDoc

  • Senior Member x2
  • *****
  • Posts: 2766
  • Location: Bishop, GA
  • Gender: Male
  • Author of "Sawing Hardwood Lumber"
    • Share Post
    • Book on Sawing hardwood Lumber
Re: Kiln Container Built from Wood
« Reply #4 on: November 23, 2019, 08:10:04 AM »
It is a good idea to use a plastic sheet on the inside.  Without it, there will be cracks and crannies that will allow vapor to move into the wall and condense on the wood, creating ideal wood rot conditions, plus moldy odors and even corroded nails and screws.  

When nailing the interior wood pieces, use stainless or aluminum nails, or else the heads can corrode and soon you have board coming off.  CD-x plywood is a much easier material to use and goes up faster, is easy to coat with a vapor barrier coating, but still use plastic underneath, easy to repair, moves less as the interior humidity goes from very humid to dry to humid, etc.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more

Offline kelLOGg

  • Senior Member x2
  • *****
  • Posts: 2141
  • Age: 75
  • Location: Durham, NC
  • Gender: Male
  • More is better but enough is best
    • Share Post
Re: Kiln Container Built from Wood
« Reply #5 on: November 23, 2019, 01:35:34 PM »
I "painted" the inside of mine with aluminum roofing paint and it has held up very well for more than 12 years. I suited up, wore gas mask and swabbed floor, walls and ceiling and put thin plywood over the floor for foot traffic. I'd do it the same way again if I had to.
Cook's MP-32, 16HP, 20' (modified w/ power feed, up/down, loader/turner)
DH kiln, CatClaw, setter, tandem trailer, log arches, tractor, thumb tacks

Offline YellowHammer

  • Senior Member x2
  • *****
  • Posts: 4538
  • Age: 54
  • Location: New Market, Alabama
  • Gender: Male
  • Take Steps to Save Steps
    • Share Post
    • Hobby Hardwood Alabama
Re: Kiln Container Built from Wood
« Reply #6 on: November 23, 2019, 09:18:57 PM »
The build theory of a kiln is to configuration is just like a swimming pool, with the waterproof liner on the inside and th more permeable materials further to the outside.  So it really wouldnt matter what the outside was made from, as long as it insulated properly and completely waterproof on the inside.  

I used plywood on the inside, calked the seams, and then laid in a couple coats of the silver roofing sealer.

HobbyHardwoodAlabama.com

Offline scsmith42

  • Senior Member x2
  • *****
  • Posts: 4942
  • Age: 59
  • Location: New Hill, NC
  • Gender: Male
  • He who dies with the most toys... WINS!!!
    • Share Post
    • Whispering Pines Farm
Re: Kiln Container Built from Wood
« Reply #7 on: November 23, 2019, 11:18:08 PM »
Three of my four solar kilns use closed cell insulation inside.  They are sprayed pretty much even with inside of the wall studs.

The inside is sprayed with an asphalting black roofing paint (except the floor).  No issues in several years.
Peterson 10" WPF with 65' of track
Smith - Gallagher dedicated slabber
Tom's 3638D Baker band mill
and a mix of log handling heavy equipment.

Offline woodfire

  • member
  • *
  • Posts: 9
  • I'm new!
    • Share Post
Re: Kiln Container Built from Wood
« Reply #8 on: January 02, 2020, 11:30:32 AM »
there's a home built kiln on my property that was put up back in the 60's or 70's and has only 1/2 plywood sheets for doors and corrugated metal sides and roof, wood drying area built above a 3'-4' crawlspace that has large fans in it. it was used successfully for decades Ive been told. 

Offline K-Guy

  • Senior Member
  • ****
  • Posts: 333
  • Location: Bangor, ME
  • Gender: Male
    • Share Post
    • http://www.nyle.com/
Re: Kiln Container Built from Wood
« Reply #9 on: January 02, 2020, 12:10:07 PM »
For the boards only shrinkage is a concern.
A vapor barrier should be used and the walls painted with the aluminized roofing paint.
Nyle Kiln Sales & Service
"He has all the virtues I dislike and none of
 the vices I admire." -Winston Churchill

Offline farmfromkansas

  • Full Member x2
  • ***
  • Posts: 170
  • Age: 68
  • I'm new!
    • Share Post
Re: Kiln Container Built from Wood
« Reply #10 on: January 05, 2020, 09:53:45 AM »
I was thinking about the build up of moisture inside the walls of a kiln.  Have seen small devices designed to allow walls to dry out, creating small gaps between boxing and framing.  Maybe just using corrugated metal to finish the outside, and maybe using no sealer for the gaps, creating a small vent top and bottom to allow a little air to dry the wall out on the outside.  Any comments?

Offline GeneWengert-WoodDoc

  • Senior Member x2
  • *****
  • Posts: 2766
  • Location: Bishop, GA
  • Gender: Male
  • Author of "Sawing Hardwood Lumber"
    • Share Post
    • Book on Sawing hardwood Lumber
Re: Kiln Container Built from Wood
« Reply #11 on: January 05, 2020, 10:30:33 PM »
Your idea is ok if we only had vapor to worry about.  However, it is common that the vapor turns to liquid and then it becomes hard to Move out of an enclosed space...kinda like spit inside a balloon.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more


Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

xx
***More Pics*** Conventional Kiln, Extra 20' Container, Wood Furnance, Forklift

Started by Ga_Boy on For Sale

1 Replies
3776 Views
Last post February 02, 2009, 05:08:54 AM
by Ga_Boy
xx
Kiln cart and shipping container kiln.

Started by Mike_M on Drying and Processing

3 Replies
2216 Views
Last post June 26, 2007, 08:57:21 PM
by Furby
xx
Shipping Container Kiln

Started by Water Dogs on Drying and Processing

13 Replies
1779 Views
Last post November 06, 2019, 11:22:47 AM
by K-Guy
xx
Ground rod for container kiln?

Started by Marshall on Drying and Processing

6 Replies
928 Views
Last post April 23, 2018, 01:45:15 PM
by YellowHammer
 


Powered by EzPortal