cement siding. If you paint/prime cut > ends, and flash the butt joint pro= perly, caulking should not be necessary.=20
On a more utilitarian note, the same applies. Some time ago, someone had a= sked about siding for a storage shed, they were building, and asked specifi= cally about using T1-11 siding. I had used T1-11 for my shop and stressed = priming and painting all edges and, in particular, the lower beveled edge, = including 10" up the backside lower edge (in case of rain trying to wick up= on that beveled under-back side.
My garage has T1-11, also, and it has held up well (almost 20 yrs, with per= iodic normal preventive maintenance). I attribute this, at least partially= , to the extra time and care in priming and painting all edges.
Properly taking care of ends and edges should be common sense. =20
I do like the tips for preventing scuffing and the like, too, for some spec= ific products. I've never worked with the specific Hardie board you're spe= aking of, but I've taken note.
Sonny=20