fin patch?

Just wondering how a fin patch is applied, is it just on the bottom?, does it have a lap?(on a cut lap board), is it the first layer of glass? or the last?, just curious, is it the same for glass on single, as a fin box? Holger

Just wondering how a fin patch is applied, is it just on the bottom?, does > it have a lap?(on a cut lap board), is it the first layer of glass? or the > last?, just curious, is it the same for glass on single, as a fin box? > Holger a couple of 4ozlayers/patches over box after all has been said and done.don’t know about other applications.