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Old 09-18-2018, 11:57 AM   #1
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Saint Peters , Missouri
Join Date: Sep 2015
Posts: 5
Drilling holes in roof

Hi. I just purchased a 2001 Land Yacht 30 and will be placing 4 solar panels on the roof soon. On my last Class C I just used the good 3m stuff and glued them on the fiberglass roof.
My question is what is beneath the airstream fiberglass roof? If its wood, I may drill a few holes and use the 3m stuff to attach the panels. If if its Luan and foam, I will just glue them down.
Im well aware of the possibility of water intrusion and will seal well.

Thank you.
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Old 09-19-2018, 07:07 AM   #2
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1991 25' Airstream 250
Oxford , Oxfordshire
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Why drill? Just use the correct Sikaflex product
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Old 09-19-2018, 07:31 AM   #3
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1971 27' Overlander
Kansas City , Kansas
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Here's how I attached my panels. The brackets are attached with sikaflex construction adhesive.
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Old 09-19-2018, 01:13 PM   #4
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2005 30' Land Yacht 30 SL
Oakland County , Michigan
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I agree. I would not put another hole in the roof unless I absolutely have to.
Bob & Nancy
2005 ASLYG 30 SO
2009 Wrangler Toad
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Old 09-19-2018, 01:21 PM   #5
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2022 25' Flying Cloud
NCR , Ontario
Join Date: Feb 2017
Posts: 3,099
NO drilling needed
  • wipe roof first with lighter fluid
  • use 3M UHB &
  • sikaflex construction adhesive.
  • cover with the white RV roof tape to protect against UV
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