On 10/23/13 12:33 PM, Drax Felton wrote:
If it's bracketed to the house then the house should already be on a stable
foundation. Why the expense of a PE for a short 40 ft tower? Use a hazer or
tilt base and crank the darn thing down when a hurricane approaches.
Most houses aren't actually all that good at withstanding localized side
loads. They're designed to hold roof up, and depend a lot on gravity to
keep things oriented and attached. It's often hard to find a place to
attach the tower that can take the loads. The fascia boards will rip
right off. Hooking to the between floor beams/joists on a 2 story house
is probably reasonably secure (but you'd need to check the house design).
I'm of the general opinion that bracketing is something to support a
short or telesecoping tower which is frighteningly wiggly to climb, not
to withstand significant wind loads. It doesn't take much of a lever
arm to develop amazingly high lateral forces on your house's structure.
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