Why shouldn’t I use galvanized roofing nails or aluminum siding nails in treated lumber?

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whotoblame asked:


I need to install vinyl siding onto PT plywood, but I can’t find a suitable nail that isn’t either recommended against (galvanized roofing nail) or downright prohibited (aluminum siding nail) for use in treated lumber. What will happen if I use either of these nails anyway?

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    • This entry was posted on Thursday, September 24th, 2009 at 6:06 pm and is filed under roofing. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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    4 Responses to “Why shouldn’t I use galvanized roofing nails or aluminum siding nails in treated lumber?”

    1. Rich Says:
      September 27th, 2009 at 1:16 pm

      The preservative causing it to the recommended attachment for pressure treated wood anything else could cause chemical reaction to discolor.
      The recommended attachment for pressure treated wood anything else could cause chemical reaction to discolor.

    2. styrckt Says:
      September 29th, 2009 at 5:31 pm

      The house is constructed with pressure treated wood.
      The side of the side of the house is constructed with pressure treated wood.

    3. William B Says:
      September 30th, 2009 at 3:50 pm

      My vinyl siding on there covered any way nothing will happen.

    4. McGuyver Says:
      October 1st, 2009 at 10:07 pm

      the chemicals in the new pressure treated wood will react with the zinc coating or aluminum, and will cause the nails to corrode, and they will eventually disintegrate. hot dipped galvanized ( as opposed to electroplate galvanized) will work fine, as well as stainless steel siding nails. if its old pressure treated lumber, (the chemicals were different until about 2 years ago) electro galvanized will work, but aluminum will not.