enigma Sailing.co.uk

Window

"Here is a challenge" said the editor "write an article about fitting a new boat window..." there was a short pause "oh and can you make it amusing yet informative, funny but factual". As the Editor limped away, and I tried descretely stow the remains of the boathook, I set my mind to thinking about the task he had set me. It all starts with a tea tray....

the Ikea tea tray portlight
Enigma with her tea tray window

  

Tea trays from Ikea in fact. £1 each and made of sturdy thick plastic. Useful for carrying drinks, eating dinner whilst watching the TV and of course as replacement boat windows. So how exactly did a man of my impeccable standing come to spend two months sailing around with a plastic tea tray stuck to the side of my boat.
When we get to a certain age things start to wither and crack, it happens to us all, and it happens to our boats too. Anyone who has a boat of any kind thats older than about ten years will have something that leaks somewhere. My little problem was my portlight window and so I decided it was time to fit a new one, but the first problem was to find out where to get a new one.
After a few days fruitless ringing around the most obvious contacts, I discovered that no one could, with any certainty, tell me the exact part number of the window fitted by the factory when the boat was built ten years ago. The closest I could get was to identify it as a Bowman ‘Gray series’ portlight, commonly used across the range of American built Legend yachts, but difficult to obtain in this country through the usual outlets. So after carefully measuring every possible dimension, a great deal of soul searching and as much helpful advice as I could muster, I decided to risk fitting a Vetus portlight that looked like a perfect match. I got my new window down to the boat and began the task of removing the old window. It came out with surprising ease, and without the need for the usual torrent of foul language I normally resort to when undertaking these kinds of tasks. Sadly my virtuous serenity did not last for long. The external dimensions of my Legends window matched the Vetus and Lewmar ranges so closely I assumed the ‘cut out’ dimensions would follow the same theme. Across the pond ‘assume’ means to make an ‘ass of you and me’, and with the window now removed I could see the gaping hole in my boat was pitifully small compared to the vetus portlight I was now waving at it. So, one thirty percent re stocking charge for the Vetus portlight paid, and I was vigorously chasing and begging my way along the ever increasing chain of “well you could try this number, they might be able to help” which finally ended at C-Quip in Swanwick who are sole importers of Bowman hatches and portlights in the UK. They do not deal direct, and only normally sell to trade, but I must have sounded desperate enough for the lovely lady to accept my order, as long I was only buying one. Of course the model I wanted was not in stock, and I was advised that it would be a eight week wait for a new one, so I placed the order, glued the Ikea plastic tea tray over the hole, and then drove back home feeling like a badly gybed spinnaker.

The task of fitting.

First we start with the cut out. The window cut out shape for the Bowman Gray portlight is not a standard rectangle shape and the off the shelf ‘Lewmar’ and ‘Vetus’ portlights don’t fit. The Bowman portlight requires two semi circular notches cut in the bottom of the hole.
fitting the window
You fit the window from the inside and screw it into position. No sealant is used on the inside, and the holes of the old window line up exactly with the new one, so fitting is a piece of cake. My replacement window has one extra screw hole because the design has been strengthened with an additional centre hinge, so if this is the case with your window, you will need to drill two new holes and find a new screw from somewhere.
Back outside again, and before the sealant can be added around the window, the area must be cleaned thoroughly to ensure a good clean surface for the new sealant to adhere to. I used a Stanley knife blade to scrape away the old sealant and then degreased the area with Starbrite fibre glass stain remover. This stuff seems to lift anything you care to mention from your boat, the downsides are that it usually triggers my Asthma, (and my Asthma is incredibly mild) and makes my eyes itch unless I wear gloves and goggles and take a good shower as quickly as possible afterwards.
clean and add sealantOnce the surface is cleaned you can add the sealant. Do not scrimp on product here, I have made that mistake before and had to re fit, so my rule now is to add more than I think I need, then double it and I might have enough.
I have always previously used Sikaflex for hatches, windows, and for sealing and bedding other deck hardware, but this is a difficult and messy product to work with. It is very sticky, hard to spread around and incredibly difficult to clean off fibreglass, clothing, shoes and anything that has been in contact with any of the above. In Contrast the new ARBO Butyl based sealing compound was a pleasure to use, I did get it on my shoes but after a few minutes swearing at it, it just peeled of my deckies without leaving a mark.
The product was brought to my attention by a couple stood in a tiny green tent at the Southampton boat show last year, they convinced me of its virtues and I bought a few tubes, though now it appears to be available in most Chandlers on the South coast so I don’t think you will have to wait till September before getting your hands on any, and as a rare bonus it is significantly cheaper than Sikaflex.
Once the sealant is in position press down the outer flange and then work around the surface so the sealant is visible around all the edges. At this point do not be tempted to try and clear up before the product has dried or trust me you will get a really unprofessional looking finish. Wait until the stuff has cured and the day is hot and dry before trimming back the excess,
finished windowI had to replace two windows, the first one was guess work and comes under the heading 'voyage of discovery' but the second one, when I knew exactly how to do it took an hour and a half from start to finish. The window was £180 the sealant was £10 and it took me a morning to fit two. A boatyard would have charged at least two and a half times that (because I did get Quotes) and the difference when doing it yourself is that you know how it was done, and if your workmanship fails you can get on and fix it.
I am now on my second Hunter Marine yachts, and have done very little work on any other breed, so I can only comment on these type of boats, but I know that most repairs I have done myself I have either maintained or improved on the quality of the original factory fitting. Although each task is a journey into the unknown for me, it would be for most boatyards as well, Yachts are not like cars, they are much more individual and since my safety might be compromised I would rather be the one doing the learning

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