[TowerTalk] how to install the tower base over a sloping roof???

[Herbert Schoenbohm]

Either add large galvanized washers on the low side to compensate for 
the difference or put some nuts on the bottom of the plate bolts and 
make an upward adjustment as needed.


Herb Schoenbohm, KV4FZ

On 12/11/2015 11:42 PM, Douglas Ruz (CO8DM) wrote:
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> Thanks Ron,
>
> Interesting idea using a solid hard wood shim a little larger than the 
> base.
>
> Bolts diameters are 3/8".
>
> Bolts length are 2 1/2".
>
> are not ok 4 bolts with that dimension to fix a base to the roof for 3 
> tower sections like Rohn 25G ?
>
> 73....Douglas, CO8DM
>
> "No creo que haya alguna emoción más intensa para un inventor que ver 
> alguna de sus creaciones funcionando. Esa emoción hace que uno se 
> olvide de comer, de dormir, de todo." - Nikola Tesla
> ----- Original Message ----- From: "Ron W8RJL" <youngron at verizon.net>
> To: "Douglas Ruz (CO8DM)" <co8dm at frcuba.co.cu>
> Sent: Friday, December 11, 2015 10:22 PM
> Subject: Re: [TowerTalk] how to install the tower base over a sloping 
> roof???
>
>
>> Doug,
>>
>> See attachment.  You can make a solid hard wood shim a little larger 
>> than
>> the base. You would need longer bolts. 3/8" does not sound very big. 
>> Use as
>> large as practical.
>>
>> Good luck with your project.
>>
>> Ron W8RJL
>>
>> ----- Original Message ----- From: "Douglas Ruz (CO8DM)" 
>> <co8dm at frcuba.co.cu>
>> To: <towertalk at contesting.com>
>> Sent: Friday, December 11, 2015 8:00 PM
>> Subject: [TowerTalk] how to install the tower base over a sloping 
>> roof???
>>
>>
>>> Hi,
>>>
>>> I would like install an small tower over the concrete roof, only 3
>>> sections, 10 ft each. 2 set of guy wires (3 + 3).
>>>
>>> I install the 3 anchor points but when i try intall the tower base i 
>>> found
>>> the roof is not 100 % flat. It is an sloping or pitching roof...it 
>>> is very
>>> soft...about 5, 7 or 10 degrees. i am planning bolt the base to the 
>>> roof
>>> but not crossing the roof...i will bolt the base in 4 points with 
>>> 3/8 inch
>>> bolts and will drill about 2 1/2 inch inside the roof.
>>>
>>> How can i correct the sloping to put the base 100% flat (level) ???
>>>
>>> Thanks,
>>>
>>> 73....Douglas, CO8DM
>>>
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
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