[TowerTalk] Hardware for roof antenna...

[David Giuliani]

I'm building a new house and want to prepare it for mounting a roof antenna
"support structure"  to the garage.  I'd love to get any and all advice re
completing framing and roofing, for later tower installation.  

Current antenna plans:  
     80 mph wind zone, never much ice
     40' Rohn 25G tower mounted on peak of roof (at 28' elevation).
	(<-- is this still a good choice despite Rohn being in financial
difficulty?  Alternative manufacturer?)
     10 sf antenna max (e.g. SteppIR, 2 meter beam, 144/440 vertical)
     Hazer system (e.g. Glen Martin)
     1 or 2 guy wire sets at 120 degrees
     lower end of guy wires attached to corner framing of house, 25' from
base
     radio room immediately below antenna, 1 story down  

Attachment to house
     guy wires: 
          anchors rated at 5,000 #, mounted to roof truss (designed for
attaching climbing equipment) but terminating with a nice "Eye"
               (<-- better idea?)
          lots of metal tie bars holding wood members together and down to
foundation
     base: 
          vertically placed glue lam penetrating through roof peak, bottom
well tied to central bearing post.
          BP25G base plate, bolted to lam (<-- better idea?)

Conduit: 3" PVC with service head (<-- suggestions?)

Grounding:  (<-- haven't finished designing this part yet; ideas?)
          #2 copper stranded wire running through bldg to 10' ground rod
sunk in ground
                clearance between ground rod and concrete floor
          2-4 copper straps running down roof and along outside of bldg to
ground rods, 2 rods per run

Anything else to consider?  

David Giuliani, WA6PXX
Mercer Island, Washington