I cannot remember if there is poly or not on the inner side of the rafters. If there is a problem it has not surfaced. However, I do not know what I should be looking for?
The overhang extends from 4' to 2' since it is tapered. Unless there has been say a failed pex fitting, there never has been any water entering anywhere. Although Sandy did have me concerned; she never even came close to coming inside. Again, it was impossible to get the home dug in as deep as planned because of ledge. The footing area consisted of sand between pretty solid ledges. The footing itself had to be engineered, acting like a girder, to span the sandy areas while being pinned to the ledge area. There are no cracks anywhere in the foundation walls, at least as far as I know. When tests were done for the placement of the septic system it was difficult to measure the rate of how fast the water would exit the test hole. Being mostly sand, no clay whatsoever, I can still remember running down to the cove to get a couple of five gallon pails of water and dumping it into the test hole and the water would disappear pretty fast. The contractor had his watch out but he made me run back and forth to the Cove a half dozen times to keep filling the hole so he could get the measurement for the town hall. Probably why I never had exterior water becoming an interior water problem is because of good drainage. More recently, I helped a neighbor install his leaching field, and his leaching field had to be so enormous one would think it could handle a small motel. The code has changed so dramatically that I am pretty sure my system is grandfathered in.
The roof is fairly new, so it is unlikely anything is going to be done here.
I really like the idea of these high efficiency mini splits but the floor plan is fairly open for only the living room, which is not even used much by occupants. The ground level den/dining/kitchen is the most used portion of the house but certainly is not very open. The loft can present another problem as well as it is not driven by heating but cooling. There is a massive return vent at the highest point of the cathedral ceiling, since by natural convection heat just rises up to the ceiling. Once the heat is sucked up, it is returned to the ground level Williamson air conditioning unit where it gets cooled, and then through two insulated ducks running all the way back up to the loft. I am not always a loser, as the contractor I hired who did the duck work seemed to know how to size things up and to be able to provide heating and cooling effectively throughout every room in the house. I really think I am stuck with a centralized heat pump since the existing ductwork appears to be very accommodating for what is probably a very difficult home to size up correctly.
Is it possible to obtain a decent single centralized heat pump that can be tied into the existing duck work? I understand this is likely not the most efficient solution but it just might be the most practical one. I do not ever plan to use the wood furnace while the heat pump is operating. Obviously one would not need the furnace during the summer, nor would there be a need for a heat pump to be operating in the winter should the wood furnace be putting out. There is a need, however, for the main distribution blower within the heat pump to be independently turned on via a single set of contacts to distribute the hot air (just under 90 degrees) throughout the house.
The contractor I spoke with seemed totally lost and obviously wanted to do things his way avoiding the simple auxiliary tie in. I assumed that your modulated DC motor, if used in a centralized heat pump, would be the compressor's prime mover since this is the workhorse, and the air distribution would be a simple squirrel cage blower/motor? If not, then I really have to get some schematics to figure out just what is happening in these units.
Dana, if I am pressing you too hard for information, let me know and I will quickly correct such. I am consolidating your posts and placing them in a folder for my children. At least they will have an instruction booklet of what they should know and be doing. Thank you very much for the help you have already provided.