Hi,
We have a 1985 Chien Hwa trawler and most of our windows leak. We are wondering if we should fix them ourselves or have someone take care of them. What is a good price to get them fixed? We live in the San Francisco bay area. If fixing ourselves, does anyone have any tips on how to do this?
Thank you! I appreciate your input.
Anna
Greetings AnnaW
The CHB model of trawler to my way of thinking is the finest layout for modest investment with the most rewards for comfort, economy, and simplistic maintenance. In a list of short comings, there are few, however windows are a big factor in the disappointment catagory. those and the leaking decks due to the wood being screwed directly into the fiberbglass allowing water into the core. Then the leaking around the fuel filler caps that allow water to sit on the top of steel tanks resulting in rusting tanks years later or as it is, Now!.
Let me address the window leaks for the moment.
The issue with windows on these CHB models is the installation at the factory. There were several manufactures involved with these class of boats, most use the same or similar methods of installing window. In the two specific cases where I had the opportunity to view the repairs the installation was the same. The cabin construction apparently completed prior to cutting out the window openings. Then with the full cut out exposed and the edges not sealed, the windows are installed.Nothing between the window installatrion and the filler betwee the walls. What happens then is the rain is allowed in around the exterior of the wood window frames both on the top/sides and the bottom against the glass pane. The space between the interior wall and the exterior wall is filled with in one case, jigsaw pieces of Styrofoam and the other matching pattern of styrofoam to the area. In both cases, the leaking water soaks the Styrofoam and causes rot to the interior walls. It is a mess to redo the interior sections and in both cases that I watched repaired, alumainum windows were installed. It was the replacement of interior wood that caused the most replacement effort. The aluminum window were then installed in sealed openings. One used a two part epoxy to coat the window opening, I can't recall the other but know it to have been sealed.
There is a product that I have used and promoted to other boaters in my area. Having 150 inches plus annually, windows that are going to leak have and will or are just waiting.
The product I would offer for consideration is called Captain-Tolleys=Creeping-Crack sealer. The Amazon prime site is: https://www.amazon.com/Captain-Tolleys-Creeping-Crack-Bottle/dp/B00JQ6XHWC
This is applied during a dry day and the area that is to be addressed, heat gunned to assure the area is dry. The product has the texture of condensed milk and is applied through a nipple pouring point. You apply this slowly along all the upper outside seams of the window frame ( I would suggest cleaning out or removing any surface sealer that may have been applied earlier.) Run the product as I said, along the top and sides of the outside edge of the window, then on the seam against the glass on the bottom of the window frame. As you apply it and the product drains into the window seam, continue apply coats every 15 minutes till the seam area you are addressing refuses anymore product.
It is worth the price of a bottle to see if what I have suggested works. You can thank me later
A.M. (Al) Johnson-Ketchikan,Alaska