Ahoy:
A question on using 1/4 plywood inside a panel like they did at the factory 30 years ago or changing to 1/4 King Starboard plastic.
The situation;
An outer fiberglass panel of the pilothouse was molded over a piece of 1/4 plywood roughly 18 x 13 inches but over time the plywood was subjected to water and rotted.
So would you:
a) Replace the rotted ¼ inch plywood with plywood sealed with epoxy and then be more vigilant with sealant and the maintenance of the sealant?
b) Replace the rotted ¼ inch plywood with 1/4 inch King Starboard at greater expense for materials and adhesives and be happy that if/when water does get inside the panel the starboard will not rot which weakens the hold of the wood screws in the plywood holding the panel tight and lets in more water over time ?
I would like to install a handrail onto the outer side of the panel so would ¼ inch King Starboard be a good enough backing?
Attached are a few pics and below is the background
The Back Story
We picked up the LM28 in October 2012 and noticed a small 5-inch square of rotted wood inside the pilothouse on the starboard side. There was some related water staining
We could never trace down the exact point of egress but logic said that a starboard wall panel of the pilothouse was implicated.
I was able to remove the outer side of the panel and the internal ¼ inch plywood and trim stick to receive screws had rotted into dust and mush.
I’m still not sure of where exactly it was leaking into the pilothouse but it seem a leading edge of the panel allowed water behind he panel and once the wood started to rot there was too much flexibility for sealants to be effective over the long term. See example on port side of $20 Cdn slid into space between panel and window.
Dino
A question on using 1/4 plywood inside a panel like they did at the factory 30 years ago or changing to 1/4 King Starboard plastic.
The situation;
An outer fiberglass panel of the pilothouse was molded over a piece of 1/4 plywood roughly 18 x 13 inches but over time the plywood was subjected to water and rotted.
So would you:
a) Replace the rotted ¼ inch plywood with plywood sealed with epoxy and then be more vigilant with sealant and the maintenance of the sealant?
b) Replace the rotted ¼ inch plywood with 1/4 inch King Starboard at greater expense for materials and adhesives and be happy that if/when water does get inside the panel the starboard will not rot which weakens the hold of the wood screws in the plywood holding the panel tight and lets in more water over time ?
I would like to install a handrail onto the outer side of the panel so would ¼ inch King Starboard be a good enough backing?
Attached are a few pics and below is the background
The Back Story
We picked up the LM28 in October 2012 and noticed a small 5-inch square of rotted wood inside the pilothouse on the starboard side. There was some related water staining
We could never trace down the exact point of egress but logic said that a starboard wall panel of the pilothouse was implicated.
I was able to remove the outer side of the panel and the internal ¼ inch plywood and trim stick to receive screws had rotted into dust and mush.
I’m still not sure of where exactly it was leaking into the pilothouse but it seem a leading edge of the panel allowed water behind he panel and once the wood started to rot there was too much flexibility for sealants to be effective over the long term. See example on port side of $20 Cdn slid into space between panel and window.
Dino
Attachments
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