Sep

24

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

Filed Under roofing 

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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    • Comments

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

    1. Rich on September 27th, 2009 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 on September 29th, 2009 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 on September 30th, 2009 3:50 pm

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

    4. McGuyver on October 1st, 2009 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.