We've recently discovered that an extra 10 minute procedure we've been putting into each of our sheds and garages, is now being overlooked by most storage shed builders! Here's the scoop. When we put our Dura-Temp Wood siding on our sheds, we set our nailers to a little high, keeping the nails heads from going into the siding, creating a way for moisture to get in. we go over it and make sure that all the nails are either hammered in (if they're to high) or caulk them (if they're sunken). Unfortunately, we have been seeing more and more shed builders skip this step all together. So when buying a shed, be sure to check for sunken nails. This also voids the siding warranty.