Polycarbonate or Acrylic for Windows

[Aqualibrium]

Go glass The very high rates of thermal expansion and contraction on any of the plastics will eventually shear the sealant layer and they will leak.
Have a close look at chemically toughened laminated glass before you buy standard toughened glass.
Google the U tube clip on chemically toughened glass. You will not believe what you see.

And you can get it in a curved form as well.

I put it on my cat when building and am super impressed with it so far; after nearly 2 yrs and 6000Nm Like always time will tell the story!

[bletso]

I replaced my port lights with laminate glass and the sky light with 3/8 tempered glass. All the plastics milked over.

[GordMay]

Greetings and welcome aboard the CF, rotaxmax.

[Hudson Force]

I just replaced my 15 year old 1/4" polycarbonate portlights with 3/8" acrylic and a current neighbor down the dock recently replaced his acrylic with polycarbonate.

Both of us agree that new and clear is nice!