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Old 10-21-2019, 11:32 AM   #9
Soo-Valley
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City: Gulf Islands
Country: canada
Vessel Name: Soo Valley
Vessel Model: Grand Banks 36
Join Date: Jul 2019
Posts: 235
The rails may have plugged weep holes. Others have found the water weeping through where the rails are fastened to the deck. Removing and rebedding is the final solution. where the rails meet the cross section is a ponding area that should have weep holes so standing water does not readily weep through joint mitre lines.

The rails are fastened by screws into the framing roof support. You should see where the rails have teak plugs inserted to cover the screws. once plugs and screws are removed the rails come off, then you can sikaflex bed them for another decade of leak free.

Add weep holes if none at where the rails meet the cross member.
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