To make a long story short this siding was installed 6 months ago and is now falling off the house. I WAS NOT the installing contractor and he is not in business any more nor is he able to be sued for the bad installation. It is the pre painted version and he used caulking at all the butt seams and no flashings, along with numerous other common sense best practices that were not used. I will say that I have never installed this product, but have done plenty of research on it. No one knows if the installer was using a pneumatic nailer(siding or framing), or hand driving nails or what, but it appears to me that looking on the back side of the fallen pieces that it is blowed out. Similar to a gun shell piercing something. It is not cracking around the nails it just simply looks to be pulling the nails through. Over driven nails? The other problem that I can see is that the course above the next seam seems to be rolling/flexing out away from the lower course leaving a gap of 3/16" to 3/8". I did talk to JH and the tech said that was all do to improper nailing and his remedy was to face nail every course/every stud. This is also what the home owner would like to have done to keep from loosing more of the siding. It is acceptable to face nail and paint the nails for heavy wind load areas, my question/concern is can a pneumatic nailer be used to do this or does every hole need to be predrilled and nailed tight? I was advised by another contractor that I may end up with a larger problem than I start with resulting in having chipped siding. What is other experiences?? Wasn't wanting to purchase a nailer just for 10SQ of face nailing but it would be the fastest.