Thread: new observatory
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Old 22-03-2013, 06:08 PM
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astronobob (Bob)
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Join Date: Jun 2010
Location: Gold Coast SE QLD
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Quote:
Originally Posted by sungrazer View Post
Hi
- How do you get the join in the middle to be waterproof?
Yes, Just an overlapp of the corrigated Roofing iron, the wheel sets on each half have a small difference in height, only 2-3mm, which allow the weight of one roof half to rest on the other, ie, the lower half goes over the top of the higher half ! odd, but works well since I have also trimmed the lower roof half sheet by 5mm so when they meet, the lower half can climb over the other when closing ! Havent needed to add any rubber seal as they fit very snugg as this type of roofing is also rather springy !

Hope this is understandable ,,
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