I am a homeowner getting ready to replace the old Masonite siding on my home. I will be removing the old siding, installing Tyvek weather barrier, and installing Hardiplank siding. Planning to do all work myself.
For the most part seems to be a straighforward task. However, I question what to do at the bottom. The old siding does not overlap the foundation like normal. Instead the outside edge recessed about 1/2" from the edge of the foundation. Currently there is no flashing b/w the siding & foundation, but my concern is that flashing should be there to direct water away from the sill plate. There hasn't been any water issues yet, that I am aware of, but I want to do it right. Anyway, my real question is on caulking. Should I caulk behind & under the flashing, or leave it open? I assume that I should not caulk the front/top side as I need a drain path on the outside of the weather barrier. Also, I've read that cement siding should not contact aluminum flashing. Is this really an issue?
Any other suggestions for my installation would be appreciated.
For the most part seems to be a straighforward task. However, I question what to do at the bottom. The old siding does not overlap the foundation like normal. Instead the outside edge recessed about 1/2" from the edge of the foundation. Currently there is no flashing b/w the siding & foundation, but my concern is that flashing should be there to direct water away from the sill plate. There hasn't been any water issues yet, that I am aware of, but I want to do it right. Anyway, my real question is on caulking. Should I caulk behind & under the flashing, or leave it open? I assume that I should not caulk the front/top side as I need a drain path on the outside of the weather barrier. Also, I've read that cement siding should not contact aluminum flashing. Is this really an issue?
Any other suggestions for my installation would be appreciated.