The Forestry Forum is sponsored in part by:

AVAILABLE


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.


Sawmill & Woodlot Magazine



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

BRUTE FORCE Authorized Dealer

Woodshax Outdoor Vending Solutions

FARMA


Council Tool

Baker Products

ECHO-Bearcat



Author Topic: PWF crawlspace  (Read 620 times)

0 Members and 1 Guest are viewing this topic.

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 4933
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
PWF crawlspace
« on: November 10, 2018, 10:36:16 AM »
Has anyone done one? Tips, techniques, cost factor is big. We'd probably like to excavate underneath total unbalanced fill ~3', frost line is 2'. No concrete so approved techniques for bracing the bottom edge would be much appreciated. This will be inspected. Thanks!

Offline Jim_Rogers

  • Board Moderator
  • *****
  • Posts: 7037
  • Age: 66
  • Location: Georgetown, MA
  • Gender: Male
  • Keep your chisels sharp.
    • Share Post
    • jrsawmill.com
Re: PWF crawlspace
« Reply #1 on: November 10, 2018, 11:24:48 AM »
Please define PWF thanks.
Whatever you do, have fun doing it!
Woodmizer 1994 LT30HDG24 with 6' Bed Extension

Offline loganworks2

  • Full Member x2
  • ***
  • Posts: 109
  • Location: Essex Jct, Vermont
  • Gender: Male
    • Share Post
Re: PWF crawlspace
« Reply #2 on: November 10, 2018, 05:19:50 PM »
Pressure treated wood foundation= PWF. I don't trust them. I have seen to much pressure treated material rot away to ever want to use one.

Offline breederman

  • Senior Member x2
  • *****
  • Posts: 1216
  • Age: 60
  • Location: Unadilla, upstate New York
  • Gender: Male
  • getting by the best way I know how
    • Share Post
Re: PWF crawlspace
« Reply #3 on: November 10, 2018, 08:45:51 PM »
It's not your everyday treated wood. My nearly 35 year old log home sits on one. So far, so good ! 
Together we got this !

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 4933
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: PWF crawlspace
« Reply #4 on: November 10, 2018, 10:43:05 PM »
I agree, but I probably just got outvoted, I'm exploring options in the wake of a fire. The spec there is UC4B treated, foundation grade.  One of the guys has done repair on one and expects to do more. The season of easy concrete and block work is closing but we'll get it.

Offline ChugiakTinkerer

  • Senior Member
  • ****
  • Posts: 395
  • Age: 56
  • Location: Chugiak, Alaska
  • Gender: Male
  • I'm new!
    • Share Post
Re: PWF crawlspace
« Reply #5 on: November 11, 2018, 10:45:25 AM »
Don, you're always a source of some good learning.  I'm semi-curious about a PWF for my cabin build so I went and looked it up.

In reading the Southern Pine Council's manual, it appears that a crawlspace foundation is when the backfill imbalance is less than 24".

Greater than that and you are in the basement foundation design realm, which requires the bottom of the foundation walls be braced by a slab or a wood floor.  Wood floors are in Appendix II, page 44.

http://www.hillspg.com/pdfs/Perm%20Wood%20Foundation.pdf
Woodland Mills HM130

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 4933
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: PWF crawlspace
« Reply #6 on: November 11, 2018, 07:06:05 PM »
Thanks CT, I missed that. For concrete or masonry foundations the break line is at 4' of unbalanced fill. I do like a slab under any house for bracing, moisture, rodents and ease on the subs. We won't have the bucks here though, it'll be plastic. On the garage job a groundhog tunneled under the foundation and came up in the crawlspace, then he stripped asbestos off the heating pipes and lined his burrow with it. That crawl is definitely getting a slab.

Offline Southside logger

  • Senior Member x2
  • *****
  • Posts: 3035
  • Age: 46
  • Location: Wilsons (Dinwiddie County), VA
  • Gender: Male
  • Have a plan to saw every log you meet.
    • Share Post
Re: PWF crawlspace
« Reply #7 on: November 11, 2018, 07:44:51 PM »
Don't tell me you took away that poor chucks insulation?  I think you would be in violation of removing AND improper installation in that case.   :D
Franklin buncher and skidder
JD Processor
Woodmizer 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 Don P

  • Senior Member x2
  • *****
  • Posts: 4933
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: PWF crawlspace
« Reply #8 on: November 11, 2018, 08:40:07 PM »
 Removal takes all kinds of folks, that old building has been sampled, lab tested, abated, resampled and retested complete with 8x10 glossies and a description on the back of each one. We are allowed to leave it undisturbed. I covered it with sakrete and will pour a slab over everything. Dang varmints.

About 20 years ago I was working on an old antebellum log home that had been used for awhile by the ladies as a place to do quilting. I found more quilt squares underground than you could shake a stick at. To have been a fly on the wall when they would get there and their pieces were gone :D

Offline logman

  • Senior Member
  • ****
  • Posts: 289
  • Age: 61
  • Location: Fleetwood, NC
  • Gender: Male
  • I need to edit my profile!
    • Share Post
    • M&K Timber Works
Re: PWF crawlspace
« Reply #9 on: November 12, 2018, 09:59:21 AM »
What about using Superior Walls?
LT40HD, 12' ext, 5105 JD tractor
M&K Timber Works

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 4933
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: PWF crawlspace
« Reply #10 on: November 12, 2018, 04:29:10 PM »
I considered it, I like them. This thing is going to be so small I think the ding for delivery and setup will price them out... but there I go assuming. I'll give them a call when the plans are a little further along.

I've thought that after a hurricane or whatever we should be sending trusses and superior walls down rather than trailers.

Offline jwilly3879

  • Senior Member
  • ****
  • Posts: 776
  • Age: 71
  • Location: Adirondacks
  • Gender: Male
    • Share Post
Re: PWF crawlspace
« Reply #11 on: November 12, 2018, 06:42:54 PM »
We have more than a few PWF's in my area that were constructed 25-30 years ago that have held up well. Most are full foundations but do have poured floors. One of the most important things I found from the builder who did most of them was that backfill material must be porous so no moisture is retained. He typically backfilled with crushed stone or a coarse sand gravel mix.

Online Joe Hillmann

  • Senior Member
  • ****
  • Posts: 802
  • Location: Cameron, WI
  • I'm new!
    • Share Post
Re: PWF crawlspace
« Reply #12 on: Yesterday at 01:59:58 PM »
I know of two houses with pressure treated wood basements built about 25 years ago(both were built by the same company).  The current owners can't sell them.  Banks won't give loans to buyers interested in them and one had their insurance dropped because of problems with the basement.


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
My new crawlspace door

Started by Larry on General Woodworking

13 Replies
1068 Views
Last post September 18, 2014, 10:24:42 AM
by Larry
question
Slab or Crawlspace for new house?

Started by Larry on Timber Framing/Log construction

17 Replies
8138 Views
Last post January 07, 2008, 10:02:57 PM
by Don_Papenburg
xx
Radiant Slab or Stemwall/Crawlspace

Started by Believer on Timber Framing/Log construction

8 Replies
1079 Views
Last post June 11, 2014, 04:08:09 PM
by Thehardway
 


Powered by EzPortal