Replies

1. 
   Guest_ | Mar 31, 1999 11:45pm | #1

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   I have used OSB for floors walls and roofs. I prefer it to the poor quality CDX that is available these days.

1. 
   Guest_ | Apr 01, 1999 12:34am | #2

   *CDX is REAL easy if you're a hunt-and-pecker.oops.I mean if you type with two fingers as I do.Dan

1. 
   Guest_ | Apr 01, 1999 05:23pm | #3

   *It would be easier to carve the house out of solid oak, that to read all the messages on the subject!Blue

1. 
   Guest_ | Apr 01, 1999 05:55pm | #4

   *Blue,oak is a good idea,but wouldn't teak be more durable when exposed to the elements?Damn the rainforest,this is fine homebuilding,Stephen

2. 
   john_baumann | Apr 02, 1999 08:38am | #5

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   I live in Texas and OSB is used more often than
   CDX for roof decking. I can drive down the road
   and see every roof that was decked with OSB,because you can see an outline at all seams
   horizontal and vertical. I wonder if this is also
   true up north. Thank you,
   John

1. 
   ToolBear_ | Apr 02, 1999 10:44am | #6

   *Robert -Be happy. The Wall St. Journal noted that new OSB plants will be coming on line soon to meet demand.It's cheaper than ply for roofing. Some of the ply I've seen lately must have been delaminating when it left the assembly line. Have not see that with OSB. It appears to be glued together better than what passes for CDX nowadays.However, get moisture on it and watch it grow - which might be why the chap from Texas can see all the joints. Ours are hidden under tile roofs. The walls are done in ply with lots and lots and lots of nails and seismic anchors and sheer panels and more anchors and more nails. Makes one really happy to have a Senco 60. Given the weight of metal in the building, I don't see how a quake can be expected to lift it off the slab. However, after Northridge, everyone is a bit sensitive on that point.ToolBear

3. 
   Guest_ | Apr 02, 1999 03:58pm | #7

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   John, most of the time you see the seams in OSB roofs, or the sheathing bows up and down between truss chords, is when some finish carpenter installed the OSB with all the joints tight. It seems to go contrary to some guys to leave 1/8" all around each sheet. The clips usually space between sheets horizontally ok, but vertical joints should be spaced the width of a nail.

4. 
   robert_h_rainier | Apr 03, 1999 09:08pm | #8

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   Fred,
   Thanks for the reference, it provided a lot of good info.
   Bob

1. 
   mduval | Apr 09, 1999 06:55am | #9

   *Actually, the heavier it is, the more force "felt" by structure during earthquake.

5. 
   robert_h_rainier | Apr 09, 1999 06:55am | #10

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   I notice that a lot of residential construction in the central Indiana area uses OSB rather than CDX plywood for exterior sheathing on new residential construction. I would like some technical information comparing the properties of the two for exterior useage. Under what conditions is one preferable to the other? Would also like to hear any first-hand experiences, good and bad. Thanks for the help.