I just did a job with Certainteed Fiber Cement. You have to paint all cuts which is VERY time consuming. You also have to keep it 1" off the roof which leaves the step flashing exposed. My customer wasn't too happy with that at first, but got over it. Malco also makes these metal brackets which allow you to hang long pieces by yourself. And you HAVE to keep the stuff very well protected before installation. If the edges get wet, they will delaminate. I used the lap siding and 4 x 8 stucco panels, kept it all well protected and painted all cuts, and I have no complaints. It looks good and looks exactly like the cedar clapboard we replaced.