It does absorb moisture and in extreme cold is difficult to work with. If it has gotten wet and is out in the freezing cold you will find it a task during application. Two people on a longer run or you will break it. Carefull nailing it when it is to cold.

It doesnt expand and contract as much as wood and holds paint very well. You do have to keep a maintenance program up on it as far as caulking goes. All but joints should be caulked. It is not a full overlap so water will get into the failed caulk joints and behind the product.

If you type in hardi plank on about any search engine you will see all the plus and minuses.

Ted