Roof top observatory

[Nova2000]

Hi 

I had posted a plan of a observatory but now I have to change it. I want some help on deciding which kind of obsy will suit me the best 

1- it rains for 4months 

2-max wind I've seen was about 40km/ph only once. 

3-heat reaches 33/35max may increase due to global warming. 

4- it will be made over a roof. 

5-minimum temperature is 14 in December. 

6-i get a good sky at the horizon (above 10 degrees) so I don't want them to get blocked. 

Several dome makers are available for me. 

I am also a good builder and have some nice friends who are ready to help. 

[JimT]

Hi Nova, I have an attic observatory at the moment, soon to move but it has done me well for about five years, no dome but a large window that gives me a North thru East to South view.
  The main thing I had to do was reinforce the floor and install the window, the glass unit I promptly removed.  It can be warm in the summer and very cold in the winter, this has not caused me much of a problem.  That's all I can really say except good luck with what you achieve

Jim

[PeterCPC]

Make sure the floor surface is VERY firm and does not flex at all.

Peter