Re: Geodesic dome sealing the gaps between the glasses

[Adam Winter]

Hi Norris,

I've thought about this problem a lot and never attempted what you've done, because I could never think of a solution that I like.  I imagine the lack of response from others on this thread is for similar reasons.  I'll be curious to see what you come up with.

Thanks

Adam Winter

The Bootstrap Music Co.

206-430-4425

bootstrapmusic.com

On Tue, May 30, 2023 at 7:21 AM Norris <nscha...@gmail.com> wrote:

Hello guys,

First dome build is undergoing, and a issue came that i did not think of earlier, how in the hell i am supposed to seal the gap in the center nicely and even? Is there some kind of tutorial or a technique that i dont know of, or maybe a tool ?

Thanks !

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[Gerry in Quebec]

Helicopter tape? 

- Gerry in Québec

[Dick Fischbeck]

Why leave a hole there in the first place?

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[John Hurt]

Adam,

1.  There is a tremendous amount of humidity inside a greenhouse that can affect a wooden greenhouse dome.  I would coat the wood, even the ends of the wood, with something that makes the wood absolutely impervious to rot.

2.  The water from the outside can seep into twin wall polycarbonate fluting between the panes and lower the light transmission.  I would seal up the ends of the poly wherever possible.  If you are using clear panes, that won't be a problem.

3.  I might use large rubber urethane stripts or something like what they use for a car windshield and put it completely over the wood and under the panes to help keep out the water from the outside.  Then I would fill the gap full of caulk and  put waterproof tape over the gap between the panes.  And I would replace the tape every year or so.

If you have a friend that is a contractor or professional builder, they might have a better solution.

Here are two fairly popular YouTube Geodesic dome builders that had some issues with their wooden greenhouse domes that might give you some ideas on how to avoid future problems:

Bigelow Brook Farms:  https://youtu.be/ZiYIVRB4QaA

ghog63:  https://youtu.be/gKnObM85eVI
I hope this helps.

John

[Norris]

The tape is to prevent the glasses being siliconed, while filling the gap with it.

The line where between glasses looks pretty good.. until we reach the middle where the corners of the glasses meet, and then it all looks horrible. But i guess its a process through error and trial and skill ofcourse.

[Norris]

couple of weeks later, the dome is fully finished. The sealing took the longest time and most of the nerves while assembling..

Turned out pretty cool though

[Kourosh Momeni]

Where did you get triangle glass from?

Are their directions on how to build this?

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[Norris]

About glasses - we ordered from a local supplier, its 6mm tempered tinted brown glasses.

Not sure what do You mean about second question.