Does anyone know if the Kerlon vents better than the Silnylon? I have heard that Silnylon may not vent very well. Thanks for the input rradams. I am not overly concerned about snow-load, but more about high winds and heavy rain.
As Lost Arra noted, neither should be doing your venting; they are "impermeable", though I expect Kerlon's hydrostatic head is much higher than standard silnylon's (which isn't that high). Also, I've compared silnylon and kerlon tear strength side to side--kerlon wins, no contest.
