It depends entirely on your use how much glass you will want. The short answer is, if you don't land on rocky shores in rough seas or play in rock gardens you only need one layer of glass.

: I am building a Nomad (Björn Thomasson design). There is still a
: lot of work until I get to the glassing part, but I am beginning
: to consider how much glass i should put on it.
: In Nick's book "The Strip-Build Sea Kayak" there is a
: "Glassing Schedule" (Page 110 in my edition). Here
: there is 3 different lay-up suggestions. I would like a rugged
: boat, but "the expedition lay-up" seems to have much
: more glass than what people normally puts on their kayaks. In
: some places there is 3 layers of 6 oz glass. Has anyone done
: this expedition lay-up?

: How much should I be concerned about the weigth? I am building a
: sea kayak. Not a racing kayak. often I will put a lot of gear in
: it anyway. Sometimes I get the impression that weigth only
: matters when lifting the kayak to the top of the car and that a
: few pounds will only make it go a little deeper in the water.

: Palle Dam
: Denmark