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| The Scuppers This is a new forum for the not necessarily fishing related topics... |
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11-29-2006, 07:09 PM
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#1
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Registered User
Join Date: Nov 2003
Location: On my boat
Posts: 9,703
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1/2 on walls
3/4 on roofs
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LETS GO BRANDON
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11-29-2006, 10:27 PM
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#2
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Registered User
Join Date: Feb 2002
Location: holliston,ma
Posts: 120
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I would stay away from the 4 ply sheathing, too much warping due to the glue up system. Five ply is the best fir plywood is better than pine plywood. If you are shingling over I would advise using 5/8" minimun (I know code is 3/8 but it is not recommended), It will give the nails something to bite into 3/4" would be the best although expensive. Use a vapor barrier (doesn't have to be "Tyvek") rosin paper has been used traditionally: but you can also use slater's felt
15Lb paper for increased waterproffing.
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11-30-2006, 06:30 AM
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#3
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Registered User
Join Date: Feb 2003
Location: Here and There Seasonally
Posts: 5,985
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What's code?
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He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself.
Thomas Paine
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11-30-2006, 06:43 AM
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#4
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Registered User
Join Date: Apr 2000
Posts: 3,036
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Should always be 3/4 inch especially if your shingling, and OSB Is a great choice very stable, not prown to warping and inexpensive, the stuff can stay uncovered for months before you ad a vapor barrier. Its better to overbuild than under build, when in doubt, go with the beef..
Building codes are codes set by the State or city telling builders what they must use when building anything from a house to a shed or installing a pool for safety reasons among other reasons..for instance, when building a staircase, each stair rise cannot deviate more than 3/8s of an inch or that would be a code violation because it can cause tripping etc.. Or when building a roof the rafters have to be so many inches on center to handle a "load" such as snow...that differes depending where in the country you live.
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11-30-2006, 07:13 AM
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#5
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Seldom Seen
Join Date: May 2001
Posts: 10,543
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2x4 construction, 16 OC ; use 3/4 CDX.
Watch for ground contact. Can rip a sheet of PT for bottom sheathing.
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“Americans have the right and advantage of being armed, unlike the people of other countries, whose leaders are afraid to trust them with arms.” – James Madison.
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11-30-2006, 07:51 AM
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#6
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Registered User
Join Date: Apr 2000
Posts: 3,036
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Most houses now are built with 2x6 16oc. The old 2x4 is gone the way of the 8 track.
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11-30-2006, 03:51 PM
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#7
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Registered User
Join Date: Oct 2000
Location: in a structure with a roof
Posts: 6,049
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Quote:
Originally Posted by #^&#^&#^&#^&#^&#^&
Most houses now are built with 2x6 16oc. The old 2x4 is gone the way of the 8 track.
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your right but its a garage so 2x4 is good enough . 8 track now thats funny
I would use 1/2 in |
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11-30-2006, 09:17 AM
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#8
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Registered User
Join Date: Feb 2004
Location: Plymouth, Ma
Posts: 1,405
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Quote:
Originally Posted by Backbeach Jake
What's code?
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The code requirement for panel span ratings of 12/0 16/0 20/0" OC Construction is only 3/8". You need to consider the thickness of adjoining walls where they meet the new wall to get a proper match to the siding. Matching the thickness of existing walls will probably be your best bet. Bottom of Plywood can not be any less than 8" above grade. Plywood up to 1/2" requires 6d nailing 6" on edges and 12" on intermediate supports. Plywood thicker than 1/2" up to 1" requires same spacing with 8d nails. If using 3/8" or 3 ply panels theyu must be applied with long dimension running horizontally offset so corners do not meet. |
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