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Equipment Discussions >> Observatories

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PhaedrusUpshaw
super member
*****

Reged: 04/21/12

Loc: Southwestern Indiana
Re: Roofing material and construction: new [Re: tim57064]
      #5911096 - 06/09/13 10:24 AM

Quote:

We will all be waiting in anticipation to see your pic's of your progress. If you can,post numerous images of the steps you take. Wishing Clear Skies for you as we have been in clouds and rain for too long.



Amen to the clouds and will do regarding the posting of the photographs.
Clear skies,
Bill


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roscoe
curmudgeon
*****

Reged: 02/04/09

Loc: NW Mass, inches from VT
Re: Roofing material and construction: new [Re: PhaedrusUpshaw]
      #5911265 - 06/09/13 12:50 PM

Quote:

I ordered my white roof panels from Home Depot and got them cut to my specific dimensions. I received them in less than a week




Did they deliver them? HD does not deliver around here.....

R


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PhaedrusUpshaw
super member
*****

Reged: 04/21/12

Loc: Southwestern Indiana
Re: Roofing material and construction: new [Re: roscoe]
      #5911320 - 06/09/13 01:29 PM

Quote:

Quote:

I ordered my white roof panels from Home Depot and got them cut to my specific dimensions. I received them in less than a week




Did they deliver them? HD does not deliver around here.....

No, I had to pick them up at their store.
Clear skies,
Bill

R




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MRBILL0
sage


Reged: 01/17/13

Loc: Los Angeles, CA
Re: Roofing material and construction: new [Re: PhaedrusUpshaw]
      #5936230 - 06/23/13 11:38 AM Attachment (6 downloads)

Bill,

Quite a fertile post on your observatory. I offer these 3 tips: 1) your deck framing has double "X" braces only on the ends, you should have them also on the long sides. 2) Standing seam would probably be the best choice. 3) In southern Indiana, snow can be a problem. I would recommend a steep roof pitch, like 6:12 (6" height for each 12" on the base). I am going to guess that your garage in your 1st picture is about 3:12.

The ARP Guy
Bill Pickard

"The difference between Stupidity and Genius, Genius has its limits." Albert Einstein


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PhaedrusUpshaw
super member
*****

Reged: 04/21/12

Loc: Southwestern Indiana
Re: Roofing material and construction: new [Re: MRBILL0]
      #5937403 - 06/24/13 01:56 AM

Quote:

Bill,

Quite a fertile post on your observatory. I offer these 3 tips: 1) your deck framing has double "X" braces only on the ends, you should have them also on the long sides. 2) Standing seam would probably be the best choice. 3) In southern Indiana, snow can be a problem. I would recommend a steep roof pitch, like 6:12 (6" height for each 12" on the base). I am going to guess that your garage in your 1st picture is about 3:12.

The ARP Guy
Bill Pickard

"The difference between Stupidity and Genius, Genius has its limits." Albert Einstein




Thank you Bill, I have compensated for the lack of “X” braces along the sides of the decking by using metal banding inside the actual building, which has worked out quite well. I used a 4:12 pitch, which was twice as high as the metal roof manufacture recommended, they are based in southern Indian and are familiar with existing conditions in this area. I am now in the process of designing a winch and pulley system to open and close the roof. I am leaning toward a hand crank boat winch, however any suggestions would be greatly appreciated most especially a simple diagram laying out the pulley configuration. I am very grateful to each one of the members who have taken the time to post to this thread, all of the suggestions have been considered and a vast number of them have been incorporated into my design.
Clear skies to all and of course, “Keep looking up!”
Bill


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PhaedrusUpshaw
super member
*****

Reged: 04/21/12

Loc: Southwestern Indiana
Re: Roofing material and construction: new [Re: PhaedrusUpshaw]
      #5937417 - 06/24/13 02:24 AM Attachment (11 downloads)

I just today finished with the exterior paneling and I am in the process of designing the winch and pulley mechanism to operate the roof. I certainty would appreciate any suggestions, especially simple diagrams of pulley systems. This project has been a very rewarding experience and I am starting to see a bit of light at the end of the tunnel. More photos to follow. Thank you ever so much to every one who has posted to this "fertile" thread as MR BILL put it.
Clear skies to all and of course "Keep looking up!"


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MRBILL0
sage


Reged: 01/17/13

Loc: Los Angeles, CA
Re: Roofing material and construction: new [Re: PhaedrusUpshaw]
      #5937657 - 06/24/13 09:29 AM

Bill,
Looks like you are making good progress. Some observations:

1. In building, shear is resistance to lateral forces. In California, we are concerned about earthquakes. In Indiana I think your concern is winds. Your are providing shear to the building with the plywood siding. But the only shear on the deck framing are the front-to-back diagonals. There is no resistance to lateral forces left-to-right. You have provided temporary diagonal braces left-to-right to the roof track and permanent diagonals front-to-back. I would recommend permanent diagonals left-to-right on both the roof track and the 6x6 posts. You will have a substantial amount of weight from the deck up which will make the structure "Top-Heavy". A big wind could provide you with a lot of firewood.

2. A boat winch is a great idea especially with the twin-ratio they provide. Perhaps 2 will be needed: open/close(?). The main concern is reduction of friction rather than pulling power. Perhaps a gloss-powdercoated steel C-Channel on each track with (3) 4" poly ball-bearing wheels on each side (in-line, not swivel) would provide very easy movement. You could even install windshield wipers in front of the wheels to clear the snow on the track

3. Standing-seam mfgrs would recommend 2:12 as the MINIMUM slope to prevent water intrusion. 4:12 should be sufficient as the area is maybe 96 sq ft (8'x12')

4. Have you provided power? Coffee maker? Heater?

Looks great.

Bill Pickard

"The difference between Stupidity and Genius, Genius has its limits." Albert Einstein


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PhaedrusUpshaw
super member
*****

Reged: 04/21/12

Loc: Southwestern Indiana
Re: Roofing material and construction: new [Re: MRBILL0]
      #5937780 - 06/24/13 10:57 AM

Quote:

Bill,
Looks like you are making good progress. Some observations:

1. In building, shear is resistance to lateral forces. In California, we are concerned about earthquakes. In Indiana I think your concern is winds. Your are providing shear to the building with the plywood siding. But the only shear on the deck framing are the front-to-back diagonals. There is no resistance to lateral forces left-to-right. You have provided temporary diagonal braces left-to-right to the roof track and permanent diagonals front-to-back. I would recommend permanent diagonals left-to-right on both the roof track and the 6x6 posts. You will have a substantial amount of weight from the deck up which will make the structure "Top-Heavy". A big wind could provide you with a lot of firewood.

2. A boat winch is a great idea especially with the twin-ratio they provide. Perhaps 2 will be needed: open/close(?). The main concern is reduction of friction rather than pulling power. Perhaps a gloss-powdercoated steel C-Channel on each track with (3) 4" poly ball-bearing wheels on each side (in-line, not swivel) would provide very easy movement. You could even install windshield wipers in front of the wheels to clear the snow on the track

3. Standing-seam mfgrs would recommend 2:12 as the MINIMUM slope to prevent water intrusion. 4:12 should be sufficient as the area is maybe 96 sq ft (8'x12')

4. Have you provided power? Coffee maker? Heater?

Looks great.

Bill Pickard

"The difference between Stupidity and Genius, Genius has its limits." Albert Einstein




Bill,
Thank you once again for the excellent suggestions. Once I started nailing up the siding my main concern has been to prevent the framing and floor from getting water logged, we have been experiencing a quite a bit of rain here in southern Indiana. Now that I have a watertight building my attention is turned toward finishing the supporting braces both for the deck and roof track. Diagonal braces for both are in the plan and I just need to settle on the exact detail regarding these supports; combating lateral shear from side to side is the primary objective. Did I mention I am designing as I go?

I am still in the design phase regarding the winch and pulley setup and would invite any suggestions regarding same. I do have C-Channel tracks installed, which have been primed, painted, and dry lubed.

I installed 5 each 3-inch inline casters on each side and lubricated them as well. I smiled at the windshield wiper suggestion. I will be installing heat tape to keep the tracks clear of ice and snow this winter.

My plan includes a small breaker box with 110-volt AC power as well as 12 volt DC battery and trickle charger. I have made provisions for both a ventilating fan and small air conditioner. The ac thermostat will be set at approximately 100 degrees to help keep from frying the computers and other electronic equipment; summer gets hot here in southern Indiana.

Regarding the coffee maker, I'm thinking ESPRESSO!

Thank you once again to everyone who has contributed to this thread.

Clear skies to all and of course, “Keep looking up!”
Bill


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PhaedrusUpshaw
super member
*****

Reged: 04/21/12

Loc: Southwestern Indiana
Re: Roofing material and construction: new [Re: PhaedrusUpshaw]
      #5937803 - 06/24/13 11:08 AM Attachment (4 downloads)

Did someone mention Espresso???

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MRBILL0
sage


Reged: 01/17/13

Loc: Los Angeles, CA
Re: Roofing material and construction: new [Re: PhaedrusUpshaw]
      #5938344 - 06/24/13 04:39 PM Attachment (2 downloads)

Quote:

Diagonal braces for both are in the plan and I just need to settle on the exact detail regarding these supports; combating lateral shear from side to side is the primary objective




Bill,

Since you have 3 posts left-to-right, you can use treated 2x6 in the form of a "K": bottom left to top-center, top-center to bottom right. Do this in both the front and back. Use 3~4 Simpson 4" SDS screws for the ends of each 2x6. SDS screws are self-drilling and set with a 3/8" hex driver. I would recommend Hot-Dipped-Galvanized. Here is the SDS spec sheet:

http://www.strongtie.com/products/connectors/SDS.asp

Bill Pickard

"The difference between Stupidity and Genius, Genius has its limits." Albert Einstein

Edited by MRBILL0 (06/25/13 02:43 PM)


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