If you build your own version of it, not following any patent drawings then it will be different from their version. They would have a difficult time defending something that isn't really theirs. The mechanism would be different as well as the wing design... I don't see a problem. If it was different enough your patent would simply list their patent as a similar device.
I'm not sure I would want a large turbine mounted to my house. It might be better to have it located in the general area, easy access but something large in a storm seems to attract damage and that would be the first thing to go while tearing at you home structure. For me my home is my safe haven, the storms come and go sometimes taking down the wind machines... they can be replaced easily.
I've had a small turbine on my roof for about 3 years now ( going on 4 winters ). It isn't physically attatched to the roof - it just sits there. If a wind strong enough comes through to take it off the damage will be minimul. Mine is very quiet except in storm winds above 50mph which I shut it down. One other problem I've had with it is its balance after a sleet storm or heavy snow fall with no wind... still spins good filled with snow/ice but it makes a heck of a rattle until a speed is reached that clears it or I physically remove the build up. Overall it's been the most reliable turbine I've ever installed. Even with 40 lbs of ice on it it still manages to pump electrons into my battery....
That particular version would be very inefficient for extracting energy although it would work. The problems I can see would be in storms and/or in higher winds. If you feather the wings sideways you've created a unit that will fly and feathering the wings into the wind will only create high loads on the building its attatched to... there isn't a good way to tame the beast short of removing the wings before the storm.
You might try building a small one to "experience" on a small scale the problems you may run into over time then decide on building a large one. Wuite often the "experience" part leads to new and better ideas.
For me its the journey, the destination is simply a bonus....