Replies

1. 
   SLOSapo | Jun 28, 2009 06:16am | #1

   McFeely's has stainless square-drive screws for this application in 1-5/8 inch and 2-1/4 inch lengths. They have what they call a nib on the underside of the screw head which supposedly helps cut a countersink and bring the screw flush with the siding surface. I used these in an application similar to yours. They worked okay, but the going was slow, and they're pretty expensive.

2. 
   xxPaulCPxx | Jun 28, 2009 07:30am | #2

   I attached my hardi sheet with the underlayment screws.  I then shot in the thinner miratec (would that be the board or batten?) with SS #8 nails.

   Tu stultus es
   Rebuilding my home in Cypress, CA
   Also a CRX fanatic!

   Look, just send me to my drawer.  This whole talking-to-you thing is like double punishment.

3. 
   PASSIN | Jun 28, 2009 07:53am | #3

   I have not used screws to hang their siding but i have put up a ton of hardi, nails would not be an issue in your application.

   I think they allow direct nailing to 7/16" osb, you have double that, I like to use my roofing nailer, works great.

   Even if you nailed 12" o.c you would still be way ahead on time and the cost of screws.

4. 
   GRCourter | Jun 28, 2009 04:49pm | #4

   We did my son's house with hardi and used R4 GRKfasteners 8x1 1/4 and very happy with the application

5. 
   JeffinPA | Jun 29, 2009 04:12am | #5

   Like another poster said, I would gun nail with roofers (I am pretty sure that is a correct application for hardi sheets but check first) and hide the nails with your battens.  That is what I did when I last applied that way.

   Used azek battens.  Wanted thin so bought 3/8" azek sheets and ripped the battens.   Bit more work but turned out great.

6. 
   johnp | Jul 01, 2009 10:42pm | #6

   Thanks everyone for your suggestions.

1. 
   edwardh1 | Jul 02, 2009 12:53am | #7

   look at the hardie specs and see what they say