window thoughts

rooferdave · Post by **rooferdave** » Wed May 02, 2012 3:12 pm

maybe I am the confused one, when I use the term "safety glass" to me that means tempered or laminated, I am not bothered one way or the other which I get, the sides will be glass but we were thinking to frame them proud of the hull and trim the interior, having read the comment that it would look like a work boat, I am for sure going to leave the front original but may change the side ones to the proud look.

as I said before the front has to be plastic do to the curve as I can bend it myself, once you have to get glass bent it gets much more expensive than lexan or plexi

gettaway · Post by **gettaway** » Wed May 02, 2012 5:16 pm

understood

Commissionpoint · Post by **Commissionpoint** » Wed May 02, 2012 8:02 pm

Ok. I well enough understand the confusion. I just went through this exact situation with the glass guy last week onboard.

Tempered is heat and/or chemical treated glass which toughens it and prevents it from making 'spears' when it breaks.

Laminated is a just that. A glass sandwich with an interlayer.

You can get Tempered/Laminated too just to add to the confusion. Hardened panes sandwiched with an interlayer. (Think jet windscreens and bulletproof glass.)

In the 70's/80's when the bulk of the F-boats were built, laminated was the convention. The process used to laminate at that time consisted of the use of a poly/vinyl interlayer. It was a marvel of modern material science at the time, but since has been replaced by superior methods and advancements in the tempering process. The biggest downfall in the present day is the delamination that often occurs on vintage glass produced during this period. There isn't anything you can do about the delamination once its begun. Eventually you will have to replace the pane weather it be because of cosmetic annoyance or bona fide visual obstruction. Good thing is tha today there are advanced alternatives for replacement, and for not that big of a hassle you can upgrade the windows for not all that much money. Even if you can't do any of the work yourself its still an affordable proposition. Ostensibly in that situation you are accostomed to shop prices, and this job would be in line with most jobs you are already familiar with paying shop rates for.